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Describe cloud concepts

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What the exam tests

What to know about Describe cloud concepts

Cloud concepts questions usually test the service model (IaaS/PaaS/SaaS) and deployment model (public/private/hybrid/community) appropriate for a given scenario.

IaaS, PaaS and SaaS responsibilities and examples.

Public, private, hybrid and community cloud deployment models.

On-premises vs cloud trade-offs: cost, control, scalability.

How cloud connectivity options (VPN, Direct Connect, ExpressRoute) work.

Question index

All Describe cloud concepts questions (184)

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1

A startup wants to deploy a web application that experiences unpredictable traffic spikes. They need to scale resources automatically without manual intervention. Which benefit of cloud computing directly addresses this requirement?

2

A retail company runs its e-commerce platform on a public cloud. During a major sale event, they want to ensure that the application remains accessible even if an entire data center fails. Which cloud computing concept does this describe?

3

A financial services company is evaluating a public cloud provider. They are concerned about the shared responsibility model for security. The company must ensure that their customer data is encrypted at rest and in transit. Under the shared responsibility model, which security control is the cloud provider typically responsible for?

4

A multinational corporation wants to reduce its carbon footprint by shifting workloads to the cloud. They want to understand how using a cloud provider's shared infrastructure contributes to sustainability. Which cloud computing concept is most directly related to this environmental benefit?

5

A small business wants to move its accounting software to the cloud to avoid purchasing and maintaining physical servers. Which cloud service model would provide the accounting application as a ready-to-use service over the internet?

6

A hospital is subject to strict data residency laws that require patient data to remain within the country's borders. They are considering using a public cloud provider. Which cloud deployment model would best meet this compliance requirement?

7

A small business wants to run its accounting application without managing the underlying operating systems or hardware. The application is accessed through a web browser. Which cloud service model is being used?

8

A financial services company processes sensitive customer data and must strictly control the physical location of the servers. They want to use cloud computing but with dedicated hardware that is not shared with other customers. Which cloud deployment model should they choose?

9

A company runs a web application that experiences sudden spikes in traffic during promotional events. They want to automatically add more virtual machines during high demand and remove them when traffic subsides, paying only for the resources used. Which cloud computing benefit does this scenario describe?

10

A company is evaluating moving its on-premises applications to the cloud. The IT manager wants to avoid upfront hardware costs and instead pay for resources on a monthly basis based on usage. Which cloud characteristic enables this financial model?

11

A company is considering moving its IT infrastructure to the cloud. The CFO wants to understand the financial impact: instead of purchasing servers and paying for maintenance, the company will pay a monthly fee based on usage. This shift represents moving from which type of expenditure to which?

12

A company wants to increase the number of virtual machines it uses during peak hours and decrease them during off-peak hours without manual intervention. Which characteristic of cloud computing does this represent?

13

A startup wants to use a cloud-based email service without installing any software on their own computers. They access the service through a web browser and the provider manages all updates and maintenance. Which cloud service model does this represent?

14

A bank needs to keep some sensitive customer data on-premises due to regulatory requirements, but wants to use cloud services for less sensitive workloads. Which cloud deployment model should they adopt?

15

A company is moving from an on-premises data center to Azure. Instead of paying a large upfront cost for servers, they will pay a monthly subscription fee based on usage. This represents a shift from which type of expenditure to which?

16

A startup wants to quickly deploy a web application without worrying about server maintenance. They only want to focus on writing code and deploying it. Which cloud service model best fits this requirement?

17

A company is considering moving its on-premises workloads to the cloud. They want to reduce their carbon footprint by using a cloud provider that uses renewable energy. Which cloud computing benefit is most directly related to this goal?

18

A company wants to ensure that its cloud resources are available even if a major disaster occurs in one region. They plan to deploy resources in two different geographic locations. Which cloud computing characteristic does this scenario primarily address?

19

A company wants to pay only for the compute resources they actually use, with no upfront costs. They can scale up or down based on demand. Which cloud pricing model does this describe?

20

A company runs a seasonal e-commerce application. During holidays, traffic increases tenfold, but the company does not want to over-provision resources for the rest of the year. They want to add or remove server capacity automatically based on real-time demand and pay only for what they use. Which cloud computing characteristic does this scenario describe?

21

A startup is building a mobile app backend and wants to use cloud services. They want to focus entirely on writing code and deploying features without worrying about server maintenance, operating system patches, or scaling infrastructure. Which cloud service model best fits this requirement?

22

A hospital stores sensitive patient data in the cloud. They want to ensure that data remains secure and that the cloud provider has implemented strict physical security controls, such as biometric access and 24/7 surveillance at datacenters. Which aspect of the shared responsibility model does this describe?

23

A company wants to reduce its carbon footprint by using a cloud provider that invests in renewable energy. They want to ensure that their workloads in Azure run in datacenters that are among the most energy-efficient. Which Azure benefit is most directly related to this goal?

24

A company is moving from an on-premises data center to the cloud. Previously, they paid a large upfront sum for hardware and then annual maintenance fees. Now they pay a monthly subscription based on actual usage of compute and storage. This shift represents moving from which type of expenditure to which?

25

A company is moving from an on-premises data center to the cloud. Previously, they paid a large upfront sum for servers and storage, plus annual maintenance fees. Now they pay a monthly subscription based on the amount of compute and storage they actually use. This shift represents moving from which type of expenditure to which?

26

A startup wants to run a web application without purchasing or managing any servers. They only want to upload their code and let the cloud provider handle everything from the runtime to scaling. Which cloud service model best fits this requirement?

27

A hospital stores patient data in the cloud. They are concerned about physical security at the datacenter. Which aspect of the shared responsibility model describes the cloud provider's obligation to secure the physical infrastructure?

28

A company runs a seasonal e-commerce application. During the holiday season, demand spikes significantly, but the company does not want to pay for idle resources the rest of the year. They want the cloud to automatically add or remove compute resources based on real-time demand. Which cloud computing characteristic does this scenario best describe?

29

A company is moving its on-premises data center to the cloud. Previously, they purchased servers and paid for maintenance. Now they pay a monthly subscription for compute and storage based on actual usage. This is an example of shifting from capital expenditure (CapEx) to which type of expenditure?

30

A hospital stores patient health records in the cloud. They are responsible for encrypting the data before storing it, while the cloud provider is responsible for securing the physical datacenter. Which cloud model is being described?

31

A startup wants to run a web application without managing the underlying servers. They only want to upload their code and let the cloud provider handle the runtime, scaling, and maintenance. Which cloud service model is this?

32

A company is evaluating cloud providers. They want to ensure that their data remains within a specific country due to legal requirements. Which cloud computing concept is most directly related to this requirement?

33

A company runs a web application that experiences unpredictable traffic spikes. They want the cloud to automatically increase the number of virtual machine instances during high demand and decrease them when demand drops, without manual intervention. Which cloud computing characteristic does this describe?

34

A hospital stores patient data in the cloud. The hospital is responsible for encrypting the data before uploading, managing user access, and complying with healthcare regulations. The cloud provider is responsible for securing the physical datacenter, network infrastructure, and hypervisor. This model describes which concept?

35

A company is migrating its on-premises workloads to Azure. Previously, they purchased servers every three years as a large capital investment. Now, they pay a monthly subscription for virtual machines based on actual usage, with no long-term commitment. Which type of cloud expenditure model does this represent?

36

A company wants to run some applications in its own on-premises datacenter for compliance reasons, while also using cloud services for burst capacity and development/testing. Which cloud deployment model should they adopt?

37

An Azure service guarantees 99.95% uptime for virtual machines deployed with two or more instances in an availability set. If the monthly uptime falls below this percentage, customers can receive a service credit. What does this guarantee represent?

38

A company currently budgets for maximum capacity to handle peak loads, resulting in underutilized resources during off-peak times. They want a model where they can quickly adjust resources up or down based on demand. Which cloud characteristic directly addresses this concern?

39

A company wants to use cloud services to temporarily increase compute capacity for a promotional event, then reduce resources afterward. They want to pay only for the extra resources used during that event. Which cloud benefit does this scenario best describe?

40

A hospital is migrating patient data to the cloud. The hospital is responsible for managing who can access the data and for encrypting the data before upload. The cloud provider is responsible for securing the physical datacenters, network infrastructure, and hypervisor. This division of security responsibilities is described by which model?

41

A company pays a monthly subscription fee for cloud services based on the resources they consume, such as the number of virtual machines or amount of storage used. There are no upfront costs or fixed long-term commitments. This pricing model is known as:

42

A company wants to move their on-premises infrastructure to the cloud to avoid the large upfront cost of purchasing new servers every three years. In the cloud, they will pay only for the server capacity they use, with no long-term commitment. This shift from upfront investment to variable expense is an example of which cloud benefit?

43

A company wants to move from an on-premises data center to Azure. They currently budget for purchasing servers, networking equipment, and software licenses as a one-time capital expense. In Azure, they will pay a monthly fee based on the resources they use. What type of cloud benefit does this represent?

44

A startup application experiences unpredictable traffic spikes. The application runs on Azure Virtual Machines. They want the VMs to automatically increase in number during peak times and decrease during low usage, without manual intervention. Which cloud characteristic does this requirement describe?

45

A company is evaluating cloud providers and needs to ensure that their data remains within a specific geographic boundary due to data sovereignty laws. Which cloud concept is most directly related to this requirement?

46

A company uses a hybrid cloud model where some workloads run on-premises and some in Azure. They need a consistent identity management system across both environments, allowing single sign-on for users accessing resources in either location. What should they implement?

47

A company wants to replicate its on-premises production environment to Azure for disaster recovery purposes. In the event of an on-premises outage, they can quickly start the replicated environment in Azure. Which cloud benefit does this best describe?

48

A company is moving from an on-premises data center to Azure. They previously had to purchase servers, networking gear, and software licenses as upfront capital expenses. In Azure, they pay a monthly fee based on actual usage. Which cloud benefit does this represent?

49

A company needs to burst compute capacity during a seasonal sale event. They plan to use Azure virtual machines to handle the extra load and then release them after the event. They want to pay only for the extra resources used during that period. Which cloud characteristic best describes this?

50

A company wants to move their on-premises data center to Azure to take advantage of the ability to quickly provision new environments for development and testing on demand, reducing time-to-market. Which cloud benefit is this an example of?

51

A company is evaluating cloud deployment models. They need to keep sensitive data on-premises due to regulations but want to use Azure for development and testing workloads. Which cloud deployment model is most suitable?

52

A company wants to ensure that their cloud provider's physical data centers are located in specific geographic areas to comply with data residency requirements. Which cloud concept is this related to?

53

A company wants to move its on-premises applications to the cloud to benefit from the ability to quickly scale resources up or down based on demand. They want to pay only for what they use. This combination of characteristics is known as:

54

A company is considering moving its on-premises workloads to Azure. The CFO wants to understand how Azure pricing works. Which pricing model allows them to pay only for what they use, with no upfront costs or termination fees?

55

A company wants to use cloud services to quickly spin up a test environment for a new application, use it for a week, and then delete it. They want to minimize costs by only paying for the compute resources during that week. This scenario best describes which cloud characteristic?

56

A company is moving to the cloud to achieve economies of scale. Which of the following best describes how cloud computing enables economies of scale?

57

A company can provision virtual machines in Azure without submitting a request or waiting for hardware procurement. Which cloud characteristic does this describe?

58

A company wants to be able to increase and decrease resources automatically based on demand without manual intervention. Which cloud characteristic does this describe?

59

A company uses a public cloud provider that shares the same physical infrastructure among many customers. This allows the provider to offer lower prices due to economies of scale. Which cloud characteristic describes the sharing of infrastructure?

60

A company is moving its IT infrastructure to the cloud to avoid large upfront hardware purchases and instead pay a predictable monthly fee. Which cloud benefit does this represent?

61

A company runs a global e-commerce platform. During a flash sale, demand surges from 10,000 users to 500,000 users in minutes. The platform automatically provisions additional servers to handle the load and deprovisions them after the sale. Which cloud characteristic is most directly demonstrated?

62

A company wants to understand who is responsible for securing the operating system on an Azure virtual machine. According to the shared responsibility model, who is responsible?

63

A startup expects rapid growth and wants its cloud infrastructure to automatically add or remove compute resources based on real-time demand without manual intervention. Which cloud characteristic does this describe?

64

A company uses Azure SQL Database (PaaS). According to the shared responsibility model, who is responsible for applying security patches to the underlying operating system that runs the database service?

65

A company transitions from on-premises IT, where they purchased servers upfront, to Azure, where they pay a monthly subscription for virtual machines. This is an example of moving from capital expenditure (CapEx) to which type of expenditure?

66

A cloud provider purchases hardware in bulk and shares physical infrastructure among many customers, which allows them to offer lower prices per customer. This benefit is known as:

67

A company wants to move from paying large upfront costs for hardware to a model where they only pay for what they use on a monthly basis. This represents a shift from CapEx to which type of expenditure?

68

A startup wants to avoid managing physical servers and instead focus on developing their application. Which cloud service model provides them with the most control over the operating system and applications while still not managing hardware?

69

A company deploys their application across multiple availability zones in an Azure region. This is done to improve which aspect of the application?

70

A company wants to ensure their application remains available even if an entire Azure region experiences an outage. Which Azure feature should they implement?

71

A company wants to use a cloud service that provides a fully managed database, including automated backups, patching, and high availability, without managing any underlying servers. Which cloud service model is this?

72

A company uses a public cloud service where they share physical hardware with other customers. This allows the provider to offer low prices due to economies of scale. Which cloud characteristic is being described?

73

A company runs a workload that requires predictable performance and dedicated physical servers. They also need to ensure no other tenant uses the same hardware. Which cloud deployment model meets these requirements?

74

A cloud provider offers resources on-demand and measures usage. Customers pay only for what they consume. Which characteristic of cloud computing is this?

75

An organization wants to combine on-premises data center resources with Azure public cloud services to extend capacity during peak demand. Which cloud deployment model describes this approach?

76

A company is evaluating cloud service models. They need to migrate an existing application that requires full control over the operating system and custom software installations. They do not want to manage the underlying physical hardware. Which cloud service model best fits this requirement?

77

A company is designing a multi-cloud strategy to avoid dependency on a single provider. They need the ability to move workloads between different cloud providers or back to an on-premises environment with minimal rework. Which cloud characteristic is most essential for this goal?

78

A startup wants to migrate its application to Azure. The development team needs to be able to provision virtual machines and storage on demand without waiting for manual approval from a central IT team. Which characteristic of cloud computing directly fulfills this requirement?

79

A company runs a web application in Azure that experiences variable traffic throughout the day. During peak hours, the application becomes slow because the existing virtual machine (VM) cannot handle the increased load. The solution architect proposes adding more VMs of the same size and distributing incoming requests across all of them to balance the load. Which scaling concept does this approach represent?

80

A retail company is planning to migrate its e-commerce application to Azure. The application will run on an Azure virtual machine that the company will manage. The IT manager wants to ensure that security patches are applied promptly. According to the shared responsibility model, who is responsible for applying security updates to the guest operating system of the Azure virtual machine?

81

A company runs a legacy application on-premises that cannot be migrated to the cloud due to strict data sovereignty laws requiring customer data to remain within the country's physical borders. The company wants to use Azure's advanced analytics services to gain insights from the data. They plan to keep the data on-premises but run the analytics workloads in Azure. Which cloud deployment model should they use?

82

A manufacturing company is planning to move its on-premises infrastructure to Azure. The CFO wants to understand the financial impact. Currently, the company purchases servers and networking equipment upfront, which depreciates over three years. In Azure, they will pay only for the compute and storage resources they consume on a monthly basis. Which cloud concept best describes this shift in cost structure?

83

A company runs a nightly data processing job that requires high CPU usage for only 15 minutes. During the day, the compute resources are idle. The company wants to reduce costs by automatically starting compute resources only when the job runs and shutting them down after completion, without manual intervention. Which cloud computing characteristic directly meets this requirement?

84

A company is migrating a custom-built inventory management application to the cloud. The application runs on a specific version of Windows Server and requires custom registry settings that are not supported in a platform as a service (PaaS) offering. The company wants to avoid the overhead of managing physical servers but still needs full control over the operating system and application dependencies. Which cloud service model should the company use?

85

A retail company runs an e-commerce website on Azure. The website experiences highly unpredictable traffic with occasional sudden spikes (e.g., during flash sales). Outside of sales events, the website has low traffic. The company wants to automatically increase the number of virtual machines during peak demand and automatically reduce them when demand subsides, without any manual intervention. The primary goal is to handle variable demand efficiently while minimizing cost. Which cloud computing characteristic best describes this capability?

86

A company deploys an Azure SQL Database. The company is billed based on the amount of data stored and the number of transactions per second (DTUs). At the end of each month, the company receives an invoice that itemizes the exact usage and the corresponding charges. Which of the five essential characteristics of cloud computing does this billing model primarily demonstrate?

87

A company is migrating a legacy customer relationship management (CRM) application to Azure infrastructure as a service (IaaS). The application runs on Windows Server and uses a third-party database. The company's IT team will manage the application and database software. However, they want to minimize their operational overhead for tasks that Azure can handle automatically. According to the shared responsibility model, which of the following tasks is the responsibility of Microsoft?

88

A company has a legacy on-premises application that processes sensitive financial data. Due to regulatory requirements, certain data cannot leave the company's on-premises data center. However, the company wants to take advantage of the cloud's scalability for the application's compute-intensive batch processing jobs. The batch jobs need to access the sensitive data but must process it without the data ever being stored in the cloud. The batch jobs will be orchestrated from the cloud. Which cloud deployment model best describes this architecture?

89

A startup company is developing a new mobile application. The development team needs to quickly create test environments to validate new features. They can provision virtual machines and databases in Azure within minutes, use them for a few hours, and then delete them when done. This ability to rapidly deploy and decommission resources directly supports which cloud computing benefit?

90

A company is evaluating moving its on-premises datacenter to Azure. The CFO points out that Microsoft purchases servers, networking equipment, and cooling systems in enormous quantities, enabling them to negotiate lower prices from hardware vendors. The company expects to benefit from these lower hardware costs as it migrates. Which cloud computing benefit does this scenario primarily describe?

91

A company runs several virtual machines on Azure that are hosted on physical servers shared with other customers. The company is concerned that another customer's high workload ('noisy neighbor') could degrade their own application performance. However, Azure's infrastructure ensures that each virtual machine receives a dedicated allotment of CPU and memory resources, and performance remains consistent regardless of the activity of other tenants. Which characteristic of cloud computing does this scenario best illustrate?

92

A company runs a mission-critical application on Azure virtual machines. The application is hosted in the East US Azure region. To protect against a regional disaster, the company configures Azure Site Recovery to replicate the VMs to a secondary region (West US). If a disaster occurs in East US, the company can initiate a failover to West US and bring the application back online within minutes using the replicated data. Which cloud computing benefit does this scenario best demonstrate?

93

A company uses Azure to host a web application. The finance team reviews the monthly invoice and notices that the charges are based on the exact number of hours each virtual machine was running, the amount of storage consumed, and the volume of data transferred out of Azure. They did not pay a fixed upfront cost. Which cloud computing characteristic does this billing model best illustrate?

94

A company migrates its on-premises SQL Server database to Azure SQL Database. The company's security team is concerned about who is responsible for applying security updates to the operating system that hosts the database engine. According to the shared responsibility model for cloud computing, who is responsible for patching the operating system of the underlying host?

95

A company runs a critical transaction processing application on two Azure virtual machines. The infrastructure is designed so that if one virtual machine encounters a hardware failure and stops functioning, the other virtual machine continues to serve traffic without any interruption or loss of service. Which cloud computing characteristic does this design primarily address?

96

A company runs an e-commerce website on a set of on-premises servers that are fully owned and depreciated. The website experiences predictable traffic surges during seasonal sales. The company plans to migrate to Azure and wants to pay only for the compute and storage resources consumed, with the ability to automatically add virtual machines during sales and remove them afterward. Which characteristic of cloud computing does this scenario best illustrate?

97

A financial services company has an on-premises data center that houses sensitive customer data. Regulatory requirements mandate that this data cannot be stored or processed outside the company's physical premises. However, the company wants to take advantage of cloud computing for compute-intensive risk analysis workloads that process anonymized subsets of the data. The company also needs to maintain a consistent management and security posture across both environments. Which cloud deployment model should the company adopt?

98

A company is evaluating moving their workloads to Azure. They currently operate a small on-premises data center. Their IT manager notes that by using Azure, they will benefit from the fact that Microsoft operates many large data centers globally, which allows them to achieve lower network bandwidth costs and hardware procurement discounts. The company will not have to negotiate separate contracts for power and cooling. Which cloud computing concept does this benefit best illustrate?

99

A company runs a web application on Azure App Service. During a marketing campaign, the application's traffic surges to five times its normal level. The application is configured to automatically add more instances to handle the increased load and then remove them when demand returns to normal. This ability to dynamically provision and de-provision resources based on real-time demand is a direct example of which cloud computing characteristic?

100

A company is developing a custom web application that will be deployed to Azure. The development team wants to minimize operational overhead and avoid any responsibility for managing the underlying operating system, runtime, or middleware. They want to focus solely on writing application code and managing data. Which cloud service model should the company use for this application?

101

A company is migrating its on-premises virtual machines (VMs) to Azure using the Infrastructure as a Service (IaaS) model. The VMs run a custom legacy application that requires specific OS-level configurations. The company's IT team wants to understand which party is responsible for applying operating system security patches after the migration. According to the shared responsibility model, who is responsible for patching the OS of the Azure VMs?

102

A company has traditionally managed on-premises servers for their internal business applications. Setting up a new test environment involves ordering hardware, waiting for delivery, racking, and configuring the OS and applications, which typically takes two to three weeks. The company is migrating their development and testing workloads to Azure. Now, developers can deploy a complete, pre-configured test environment using Azure Resource Manager templates in under two hours. This ability to rapidly provision resources and adapt to changing requirements best illustrates which benefit of cloud computing?

103

A company's CFO is evaluating the financial impact of moving the company's on-premises data center to Azure. The on-premises data center requires significant upfront investment for servers, storage, and networking equipment, which is depreciated over several years. In contrast, Azure offers a pay-as-you-go pricing model where the company pays only for the resources it consumes, with no upfront costs. The CFO wants to understand how this shift changes the company's financial reporting. Which statement accurately describes the financial difference between on-premises and cloud spending?

104

A company uses Azure to host a web application. At the end of each month, the finance team receives an invoice that details charges for compute hours, storage consumption, and outbound data transfer. The IT manager explains that this granular billing is possible because Azure continuously monitors resource usage and provides detailed usage data for cost allocation. This capability is a direct example of which essential characteristic of cloud computing as defined by the National Institute of Standards and Technology (NIST)?

105

A company is migrating its on-premises SQL Server databases to Azure SQL Database, which is a Platform as a Service (PaaS) offering. The on-premises IT team is accustomed to manually applying monthly security patches to the SQL Server software. After the migration, the team wants to understand their responsibilities for securing the database. According to the shared responsibility model, which party is responsible for applying security patches to the SQL Server database engine in Azure SQL Database?

106

A retail company hosts an e-commerce website on on-premises servers. During seasonal sales events, the website experiences traffic spikes that last for a few hours. Several years ago, the company purchased additional servers to handle these spikes, but those servers now sit idle for most of the year. The company is considering moving the website to Azure. Which benefit of cloud computing would most directly help the company avoid maintaining idle hardware while still being able to handle traffic spikes?

107

A company migrates its web application to Azure App Service (Platform as a Service). The application processes sensitive customer data and must ensure that all data in memory is encrypted while the application is running. According to the shared responsibility model, which party is responsible for implementing encryption of data in memory for this application?

108

A manufacturing company runs its proprietary production scheduling software on on-premises servers. The IT team also manages on-premises file servers. The company decides to move its email system to Microsoft 365 but keeps all other systems on-premises. Which cloud deployment model does this scenario best describe?

109

A company runs multiple virtual machines (VMs) in Azure. The IT team notices that their VMs are hosted on physical hardware that is shared among multiple customers. The team has no ability to specify or control which physical server their VMs run on, and they cannot see the underlying hardware details. The VMs are, however, always available when requested. This scenario exemplifies which essential characteristic of cloud computing as defined by the National Institute of Standards and Technology (NIST)?

110

A company uses Azure for its infrastructure. A developer needs a new virtual machine to test a feature. The developer goes to the Azure portal, selects an image, and provisions the VM within minutes without any interaction with the IT procurement department. This capability directly demonstrates which essential characteristic of cloud computing as defined by NIST?

111

A company runs a critical line-of-business application on a single on-premises server. The company is migrating the application to Azure and wants to minimize downtime if the server hardware fails. The architect proposes deploying the application on two Azure virtual machines (VMs) in the same region, placed in an availability set. This configuration is designed to ensure that if one VM fails due to hardware failure or planned maintenance, the other VM remains running and the application stays available. Which cloud computing concept does this configuration primarily illustrate?

112

A small business runs its IT infrastructure in a small on-premises server room. The business owner is considering moving to Azure and asks the IT manager: 'How can a large cloud provider like Microsoft offer compute and storage at a lower per-unit cost than I can get by purchasing my own servers, even though I only need a few virtual machines?' Which cloud computing benefit best answers this question?

113

A startup company plans to move its e-commerce application to Azure. The startup has limited upfront capital and expects demand to be unpredictable initially. The key requirement is that the company should only be charged for the compute and storage resources it actually uses, with the ability to pay per hour or per minute. This requirement directly maps to which fundamental benefit of cloud computing?

114

A company is migrating its customer relationship management (CRM) system to a Software as a Service (SaaS) provider. The provider manages the application, runtime, middleware, and infrastructure. The company's IT security team is concerned about who is responsible for protecting the company's data and managing user access. Based on the shared responsibility model for cloud computing, which statement is correct?

115

A company is subject to strict data residency regulations that require all personally identifiable information (PII) to remain on their own physical servers. However, they want to use Azure for compute-intensive analytics that do not process PII. They also need a consistent set of management tools to manage resources across both environments. Which cloud deployment model should the company adopt?

116

A company currently runs its IT operations entirely on-premises. The finance team is evaluating moving to Azure and wants to understand the financial impact. They currently purchase new servers every five years as a large upfront capital expenditure (CapEx). In Azure, they would pay a fixed monthly subscription for virtual machines instead. This shift from a large upfront payment to a smaller monthly operational expense (OpEx) is a direct illustration of which cloud computing benefit?

117

A retail company runs an e-commerce application on Azure virtual machines during peak holiday seasons. The application experiences high traffic for a few weeks each year. The IT team wants to automatically provision additional compute resources during high demand and remove them when demand drops, ensuring that the company only pays for resources while they are actively in use. Which cloud computing characteristic does this approach primarily rely on?

118

A company is migrating a web application to Azure. The web tier will run on Azure App Service (PaaS) and the database tier will use Azure SQL Database (PaaS). The company's IT team wants to understand their patching responsibilities for the underlying operating system (OS) of each service. According to the shared responsibility model, which statement is correct?

119

A company is deploying a mission-critical application on Azure virtual machines. The solution must remain operational even if a single Azure datacenter within a region experiences a complete outage. Which Azure feature should the company use to protect against this specific failure scenario?

120

A development team frequently needs to create and tear down test environments. In their on-premises datacenter, they must submit a ticket to the IT operations team, which often takes several days to provision the required servers. After migrating to Azure, developers can now create virtual machines, databases, and other resources directly through the Azure portal or using PowerShell scripts, without any interaction from the IT operations team. This ability to provision cloud resources directly is a direct example of which fundamental characteristic of cloud computing?

121

A company's field employees use a custom mobile app to upload sales data from their smartphones while at client sites. The app connects to an Azure-hosted backend API. The company's IT team notes that the mobile app can connect to the Azure service using standard HTTPS from any location with internet connectivity, without requiring a VPN. This ability to access cloud resources over the internet from various devices and locations is an example of which key characteristic of cloud computing?

122

A company plans to migrate a steady-state application to Azure. The application requires a fixed number of virtual machines running 24/7 for the next three years. The company wants to minimize the total cost of ownership for these virtual machines over the three-year period. Which Azure pricing option should the company select when purchasing the virtual machines?

123

A company is migrating a custom line-of-business application to Azure. The application handles sensitive customer data. The IT team is evaluating whether to deploy the application on Azure Virtual Machines (IaaS) or Azure App Service (PaaS). They want to understand the division of security responsibilities between Microsoft and the customer under the shared responsibility model. Which responsibility remains the customer's obligation regardless of whether they choose IaaS, PaaS, or SaaS?

124

A retail company migrates its e-commerce platform to Azure Virtual Machines. The workload is seasonal, with high traffic during holiday sales and low traffic otherwise. To manage costs, the IT team configures Azure Automation to power off VMs during low-traffic periods and power them back on when demand increases. The company's monthly bill reflects charges only for the hours each VM was actually running; no charges are incurred for the time the VMs were in the 'Stopped (deallocated)' state. This consumption-based billing model is a direct example of which fundamental characteristic of cloud computing?

125

A retail company runs its e-commerce platform on Azure App Service. The platform is configured with an autoscale rule that adds web server instances when CPU usage exceeds 75%. During a holiday flash sale, traffic surges from a baseline of 1,000 concurrent users to over 100,000 concurrent users within minutes. The platform automatically provisions additional instances to handle the load, and once the sale ends, it scales back down. This ability to rapidly adjust resources to meet varying demand is a direct example of which fundamental characteristic of cloud computing?

126

A healthcare organization migrates its patient data management application to Azure. The organization's compliance team learns that Azure's underlying physical infrastructure, including servers and storage, is shared by many customers globally. The team is concerned about data leakage and wants to understand which fundamental cloud computing characteristic allows the provider to share physical hardware among multiple tenants while ensuring that each tenant's data and compute resources remain logically isolated and secure from one another.

127

A manufacturing company is evaluating whether to migrate its on-premises workloads to Azure. The IT team calculates that the total cost of running the equivalent compute and storage resources in Azure is lower than operating its own datacenter. They attribute this cost advantage to the fact that Azure purchases servers, networking gear, and power in massive quantities and passes the savings on to customers by spreading the fixed costs across a vast number of tenants. This cost-saving benefit is a direct illustration of which cloud computing concept?

128

A retail company experiences fluctuating customer traffic throughout the year. During peak seasons, traffic can increase by 300% for a few weeks. The company wants to pay only for the compute resources it uses, without needing to invest in permanent infrastructure to handle peak loads. Which cloud computing characteristic best supports this requirement?

129

A company plans to migrate a line-of-business application to Azure. The application will run on a virtual machine (IaaS). The company wants to ensure that the operating system is kept up to date with security patches. According to the shared responsibility model, who is primarily responsible for applying these patches?

130

A healthcare company is planning to migrate its on-premises data center to Azure. The CFO wants to shift from making large upfront hardware purchases to paying for IT resources as an ongoing operational cost. Which cloud computing benefit does this scenario describe?

131

A financial services firm uses a hybrid cloud strategy. They run customer-facing applications in a public cloud and store sensitive customer data in an on-premises data center to meet regulatory compliance. The firm wants to allow its applications in the public cloud to securely access the on-premises data when needed. Which cloud deployment model best describes this setup?

132

A company runs a web application on Azure virtual machines. The application experiences unpredictable traffic patterns with occasional sharp spikes. The operations team wants to configure the infrastructure so that the number of running virtual machines automatically increases during spikes and decreases during low traffic periods, without manual intervention. Which cloud computing characteristic does this requirement describe?

133

A company subscribes to a SaaS-based customer relationship management (CRM) application hosted in the cloud. The CRM provider manages the application, runtime, and infrastructure. The company's employees access the CRM via a web browser. According to the shared responsibility model, which security responsibility belongs solely to the company?

134

A company runs a legacy database on a single Azure virtual machine. The database is experiencing performance issues as the dataset grows. The IT team decides to increase the virtual machine size from Standard_D2s_v3 (2 vCPUs, 8 GB RAM) to Standard_D8s_v3 (8 vCPUs, 32 GB RAM) to improve performance. This process is an example of which cloud computing concept?

135

A development team needs to quickly provision a new virtual machine for a short-term testing environment. The team uses the Azure portal to create the VM without submitting a request to the IT operations team or waiting for any manual approval. The VM is provisioned and available within minutes. Which cloud computing characteristic does this scenario best represent?

136

A cloud provider uses virtualization technology to host multiple customers on the same physical server. Each customer's data, applications, and operating systems are logically isolated and secured from one another. Which characteristic of cloud computing does this scenario best describe?

137

A company migrates its web application to Azure. The CFO wants to view detailed reports of CPU usage, storage consumption, and network bandwidth for each team's resources to accurately allocate costs. The company uses Azure Cost Management and Billing to generate these reports. Which characteristic of cloud computing does this capability best illustrate?

138

A company hosts a web application on Azure App Service. The application must be accessible from any internet-connected device, including smartphones and laptops. Employees also use the Azure portal and Azure CLI from various locations to manage the application and other Azure resources. This scenario best illustrates which characteristic of cloud computing?

139

A company runs a web application on a set of Azure virtual machines. The application experiences unpredictable spikes in user traffic. The company configures an Azure Virtual Machine Scale Set with an autoscale rule that adds virtual machines when CPU usage exceeds 75% and removes virtual machines when CPU usage drops below 30%. This ability to automatically adjust compute resources to match demand best represents which characteristic of cloud computing?

140

A company runs its production workloads on an on-premises data center to meet strict regulatory compliance requirements. However, the development and testing teams use Azure to quickly provision environments on demand for short-term projects. The teams need to occasionally transfer data between the on-premises environment and Azure. Which cloud deployment model does this setup represent?

141

A company historically purchased physical servers and networking equipment for its data center, paying the full cost upfront before using the hardware. The company is now migrating its workloads to Azure and will only pay for the compute and storage resources it consumes each month, with no long-term commitments or upfront hardware purchases. This financial model change best represents which cloud computing benefit?

142

A company runs a critical web application on Azure virtual machines. To ensure the application remains accessible even if an entire Azure datacenter becomes unavailable due to a power outage, the company deploys virtual machines in two different Azure regions and uses Azure Traffic Manager to automatically route traffic to the healthy region. Which benefit of cloud computing does this configuration primarily demonstrate?

143

A manufacturing company traditionally relied on an internal IT team to procure, configure, and install physical servers for each new project. The provisioning process typically took three to four weeks. After migrating to Azure, developers can now provision virtual machines and other resources directly from the Azure portal within minutes without any interaction with the IT team. This capability best represents which characteristic of cloud computing?

144

A company migrates its on-premises infrastructure to Azure. The IT manager notes that Azure dynamically allocates and reallocates compute and storage resources across multiple customers based on demand, while ensuring each customer's data and workloads remain isolated from others. Which cloud computing characteristic does this describe?

145

A company plans to migrate a line-of-business application to Azure virtual machines (IaaS). The company's security team is reviewing the shared responsibility model to determine which security tasks are handled by Microsoft. Which of the following security responsibilities belongs to Microsoft?

146

A company is developing a new web application. The development team wants to deploy the application code without having to manage the underlying virtual machines, operating systems, or runtime environments. They only want to focus on writing code and let the cloud provider handle the infrastructure, platform, and scaling automatically. Which cloud service model does this scenario describe?

147

A company runs a legacy application on-premises that must store data within the country due to regulatory requirements. To handle occasional peak workloads, the company connects its local network to an Azure virtual network via a site-to-site VPN. During these peaks, the application scales out to Azure virtual machines that process compute tasks but never store regulated data outside the on-premises datacenter. Which cloud deployment model does this scenario best describe?

148

A retail company runs an e-commerce application on Azure. During the holiday season, the application experiences a sudden 10x increase in traffic. The company uses Azure Virtual Machine Scale Sets configured with autoscale rules based on CPU usage. The application automatically adds virtual machines during the peak and removes them when traffic subsides. Which benefit of cloud computing does this configuration primarily demonstrate?

149

A manufacturing company traditionally purchased and maintained its own servers, paying a large upfront capital expense (CapEx) for hardware that was expected to last five years. After migrating its workloads to Azure virtual machines, the company now receives a monthly invoice that reflects only the compute and storage resources actually consumed during that month. There are no upfront payments. This change in cost structure best illustrates which benefit of cloud computing?

150

A manufacturing company deploys a batch processing application on Azure. The processing workload is highly unpredictable; sometimes the application requires hundreds of virtual machines for a few hours to process a large queue of jobs, and at other times it requires only a handful of virtual machines. The company configures the application to automatically add and remove virtual machines based on the size of the processing queue, ensuring that they never pay for idle capacity. Which cloud characteristic does this scenario primarily demonstrate?

151

A company hosts a web application on a single Azure virtual machine. Over the past month, the application's CPU utilization has consistently remained above 90%, causing slow response times. The administrator plans to modify the virtual machine's size from Standard_D2s_v3 (2 vCPUs) to Standard_D8s_v3 (8 vCPUs) to improve performance. Which scaling method does this change represent?

152

A company uses Azure to host its virtual machines and storage. The company receives a monthly invoice that charges based on the exact number of virtual machine hours and gigabytes of storage consumed. No upfront payment is required. Which characteristic of cloud computing does this billing model represent?

153

A company runs its production database on an Azure SQL Database (PaaS) and its custom application on an Azure virtual machine (IaaS). The company needs to ensure that operating system security patches are applied. According to the shared responsibility model, which resource requires the company to apply OS patches?

154

A company hosts a critical line-of-business application on Azure virtual machines. The application must remain available even if a single virtual machine fails due to hardware failure or operating system crash. The company deploys two virtual machines in an Availability Set and configures an Azure Load Balancer to distribute traffic. If one VM becomes unavailable, the Load Balancer automatically redirects traffic to the healthy VM. This configuration primarily demonstrates which benefit of cloud computing?

155

A hospital maintains its patient records on physical servers located within its own on-premises data center due to strict data residency regulations that prohibit patient data from leaving the country. For analytical workloads that process only anonymized data, the hospital uses Azure virtual machines and Azure Synapse Analytics. This combination of on-premises and cloud resources best describes which cloud deployment model?

156

A company is planning to migrate its customer relationship management (CRM) system to the cloud. The company is evaluating three service models: deploying the CRM on Azure Virtual Machines (IaaS), using Azure App Service to host a custom CRM web application (PaaS), and subscribing to a cloud-based CRM software like Dynamics 365 (SaaS). According to the Microsoft shared responsibility model, which of the following statements accurately describes the division of security responsibilities across these three options?

157

A small business wants to migrate its IT infrastructure to Azure. The owner wants the ability to provision new virtual machines, storage accounts, and databases entirely through a web-based portal, without needing to submit a formal request or wait for an administrator to manually allocate resources. The owner expects resources to be available immediately after configuration. Which characteristic of cloud computing does this scenario best illustrate?

158

A rapidly growing e-commerce company currently hosts its website on a single server in a US data center. Customers in Europe and Asia report slow load times and timeouts. The company wants to improve performance for global users without building and managing data centers worldwide. They plan to deploy the website on Azure virtual machines in multiple Azure regions (e.g., West Europe, Southeast Asia) and use Azure Traffic Manager to route users to the closest region. Which benefit of cloud computing does this approach primarily demonstrate?

159

A company traditionally purchased physical servers and networking equipment every three years, paying the full cost upfront. They are now migrating their workloads to Azure virtual machines. The finance team wants to understand the primary financial benefit of the new cloud model. Which statement best describes this benefit?

160

An IT team manages a customer relationship management (CRM) application hosted on a single Azure virtual machine. As the number of users grows, the CPU and memory usage on the VM consistently exceed 90%. The team decides to increase the VM size from Standard_D2s_v3 (2 vCPUs, 8 GB RAM) to Standard_D8s_v3 (8 vCPUs, 32 GB RAM) to handle the increased load. The application is not designed to run on multiple servers simultaneously. This approach represents which type of scaling in the cloud?

161

A global software company hosts its SaaS product on Azure. Thousands of different customers' virtual machines and databases run on the same physical servers in Microsoft's data centers, yet each customer can only access their own resources and cannot see or interact with other customers' data. Which cloud computing characteristic does this scenario primarily describe?

162

A startup runs a web application on Azure virtual machines. The application experiences sudden, short-lived spikes in traffic multiple times a day. The startup configures an autoscale rule that adds two additional VM instances when CPU usage exceeds 75% and removes them when CPU drops below 30%. This approach is designed to match resource consumption closely to demand. Which cloud computing characteristic does this scenario primarily demonstrate?

163

A global consulting firm has offices in New York, London, and Tokyo. They deployed a document management system on Azure App Service. Consultants need to access the system from any location worldwide using laptops or smartphones over public Wi-Fi or cellular networks, without needing a VPN connection. After deployment, all consultants can successfully log in and use the application from any internet-connected device. Which characteristic of cloud computing does this scenario best illustrate?

164

A company deploys a line-of-business application on an Azure virtual machine. The IT team wants to ensure the application remains secure. According to the shared responsibility model, which of the following security tasks is the sole responsibility of the customer (the company)?

165

A development team lead needs to quickly provision a new Azure virtual machine for a short-term testing project. Instead of submitting a ticket to the IT procurement team and waiting several days for hardware approval and setup, the lead directly signs into the Azure portal, configures the VM settings, and has it running within 15 minutes. The entire process required no human interaction from the cloud provider's staff. Which cloud computing characteristic does this scenario primarily demonstrate?

166

A financial institution must keep sensitive customer financial data on-premises to comply with regulatory requirements. However, they also want to use Azure to run compute-intensive analytics on anonymized datasets, taking advantage of scalable resources without managing physical servers. Which cloud deployment model should they adopt?

167

A company runs a web application on Azure. At the end of each month, the finance team reviews an invoice that itemizes charges by resource type, such as virtual machine compute hours, storage capacity used, and data transfer volume. The total cost directly corresponds to the exact quantity of resources consumed during the billing period. This capability is an example of which fundamental characteristic of cloud computing?

168

A company deploys a mission-critical application across three Azure availability zones. The application is designed to continue operating without any interruption if an entire availability zone becomes unavailable. Which cloud computing characteristic does this scenario best illustrate?

169

A company runs an e-commerce web application on Azure virtual machines that are part of a virtual machine scale set configured with an autoscale rule based on CPU utilization. During a flash sale, customer traffic surges, causing the average CPU utilization across all instances to exceed 75% for five minutes. The scale set automatically provisions three additional VM instances to handle the increased load. After the sale ends, traffic normalizes, CPU utilization drops below 30%, and the scale set automatically removes the extra instances. This scenario best illustrates which characteristic of cloud computing?

170

A company hosts a customer relationship management (CRM) application on Azure virtual machines. The sales team needs to access the CRM from various locations, including the airport, home, and client offices, using company-issued laptops and personal mobile devices. The application is accessible via a standard web browser over the internet without requiring any special client software or dedicated network connections. Which fundamental characteristic of cloud computing does this scenario primarily demonstrate?

171

A company migrates its on-premises servers to Azure virtual machines (IaaS model). The security team is planning the patching strategy and asks who is responsible for installing security updates on the guest operating system of the Azure VMs. According to the shared responsibility model, which statement is correct?

172

A company is migrating its on-premises infrastructure to Azure. Previously, the company purchased physical servers, networking equipment, and data center space every three years, paying a large sum upfront. After migration, the company expects to pay a monthly invoice based only on the virtual machines and storage it actually uses, with the ability to increase or decrease resources as needed without additional upfront costs. This change in cost structure is best described by which pair of cloud computing concepts?

173

A company's IT manager is evaluating a public cloud provider. The provider's data center contains powerful physical servers that host virtual machines from thousands of different organizations. The manager is concerned about security, but the provider assures that each organization's VMs are logically isolated and cannot access each other's data, even though they share the same hardware. Which essential characteristic of cloud computing does this scenario best describe?

174

A company is migrating its on-premises infrastructure to Azure. In the past, to provision a new server, the IT team had to submit a formal request to the data center operations team. The operations team would then procure hardware, install the operating system, configure networking, and make the server available. This process often took several weeks. After migrating to Azure, a developer can log into the Azure portal, select a virtual machine configuration, and have it provisioned and running within minutes, without any need to interact with Azure support or operations staff. Which essential characteristic of cloud computing does this scenario best illustrate?

175

A company provides a software-as-a-service (SaaS) application to multiple enterprise customers. Each customer's usage of compute and storage resources is tracked separately. At the end of each month, the company generates detailed invoices that reflect each customer's exact resource consumption, including CPU hours, storage GB-months, and data transfer. The cloud provider automatically measures all resource usage and makes the data available through an API. Which essential characteristic of cloud computing does this scenario primarily demonstrate?

176

A company runs a web application on an Azure virtual machine. The application experiences periodic traffic surges during promotional campaigns. To handle the increased load, the IT team manually changes the VM size from Standard_D2s_v3 to Standard_D8s_v3 before each campaign and then changes it back after the campaign ends. Which cloud computing concept does this scenario exemplify?

177

A retail company runs an e-commerce application on Azure virtual machines. Traffic follows a predictable daily pattern: peak load occurs from 9 AM to 5 PM on weekdays. To handle this, the company configures an Azure autoscale rule that adds virtual machines at 8:30 AM and removes them at 5:30 PM each weekday. This scenario best demonstrates which cloud computing characteristic?

178

A company migrates its web application to Azure App Service (PaaS) and its data to Azure SQL Database (PaaS). The company wants to understand which security responsibilities it retains after the migration. According to the shared responsibility model, which of the following responsibilities remains the responsibility of the company (customer) when using these PaaS services?

179

A small start-up company needs to run complex machine learning training jobs that require powerful GPU instances for only a few hours each day. The company cannot afford the high upfront capital expense of purchasing and maintaining multiple GPU servers on-premises. Instead, they spin up GPU-optimized virtual machines on Azure during training hours and delete them when the jobs finish, paying only for the compute time consumed. Which benefit of cloud computing does this scenario primarily illustrate?

180

A company runs an e-commerce web application on a set of Azure virtual machines behind a load balancer. The application experiences unpredictable traffic surges during flash sales. The company configures an autoscale setting that automatically adds virtual machines when the average CPU usage across the existing VMs exceeds 75% for five minutes, and removes virtual machines when CPU usage drops below 30% for ten minutes. Which essential characteristic of cloud computing does this configuration primarily demonstrate?

181

A company runs a web application on Azure virtual machines. During a promotional event, the number of users increases significantly. To handle the increased load, the IT team adds five additional virtual machines to the existing pool, so that the total number of VMs increases from three to eight. Which type of scaling is the team using?

182

A multinational company is expanding its online retail business to new countries. The company needs to deploy its web application in Azure regions that are geographically close to customers in Europe, Asia, and North America to minimize latency. The IT team can deploy identical application instances in multiple regions within minutes using Azure Resource Manager templates. Which benefit of cloud computing does this scenario best illustrate?

183

A company currently runs its application on-premises in a data center. The IT manager calculates that the cost per server per month is approximately $200 when considering hardware depreciation, electricity, cooling, and staff. The company is considering moving to Azure and discovers that Azure can provision the same server capacity for $150 per month, but only if the company commits to a three-year reservation. Which cloud concept best explains why Azure can offer a lower price even with the reservation commitment?

184

A company runs a development and testing environment on Azure virtual machines. The environment is only needed during standard business hours (9:00 AM to 5:00 PM), Monday through Friday. The IT team configures an automated schedule that deallocates all VMs at 5:00 PM each weekday and starts them again at 8:00 AM the next morning. The team reports a significant reduction in their monthly Azure bill after implementing this schedule. Which essential characteristic of cloud computing does this scenario primarily demonstrate?

Watch out for

Common Describe cloud concepts exam traps

  • IaaS gives you infrastructure control; SaaS gives you only the application.
  • Hybrid cloud combines on-premises and public cloud — not two public clouds.
  • Cloud does not automatically mean cheaper or more secure.
  • Management responsibility shifts with each service model (IaaS → PaaS → SaaS).

Frequently asked questions

What does the Describe cloud concepts domain cover on the AZ-900 exam?
Cloud concepts questions usually test the service model (IaaS/PaaS/SaaS) and deployment model (public/private/hybrid/community) appropriate for a given scenario.
How many questions are in this domain?
This page lists all 184 Describe cloud concepts questions in the AZ-900 question bank. The actual exam draws from this domain proportionally to its weighting in the official exam blueprint.
What is the best way to practise this domain?
Start with a short focused session (10 questions) to identify gaps, then use the interactive practice page to work through explanations. Repeat with a longer session once the weak areas feel solid.
Can I practise only Describe cloud concepts questions?
Yes — the session launcher on this page filters questions to this domain only. Choose any session length or try the interactive practice page for inline explanations.