AZ-900 Practice Test 12 — 15 Questions

Question 1

A company wants to deploy a standardized environment that includes Azure Policy assignments, RBAC roles, and resource group templates. They need to version these components and apply them to multiple subscriptions. Which Azure service should they use?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Azure Blueprints. Azure Blueprints is the correct service because it is designed to orchestrate the deployment of a standardized environment by packaging Azure Policy assignments, RBAC roles, and resource group templates into a single, versioned, and repeatable artifact. It allows you to assign these components to multiple subscriptions while maintaining a consistent configuration and tracking changes through versioning.

Answer

Azure Policy

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Azure Resource Manager

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Azure Management Groups

Question 2

Which Azure service provides real-time analytics on fast-moving streaming data from IoT devices and applications?

Accepted Answer

Azure Stream Analytics. Azure Stream Analytics is a serverless, real-time analytics service designed to process high-velocity streaming data from sources like IoT devices, applications, and sensors. It uses SQL-based query language to analyze data in motion, enabling immediate insights and triggering actions without storing the data first.

Answer

Azure Data Factory

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Azure Synapse Analytics

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Azure HDInsight

Question 3

A company deploys a web application on Azure App Service. During a marketing campaign, they expect traffic to double. The app uses a Standard tier App Service plan. They want to ensure that the additional load is handled without performance degradation while keeping costs minimal. Which action should they take?

Accepted Answer

Scale out the App Service plan by increasing the instance count.. Scaling out (increasing instance count) for the Standard tier App Service plan allows the application to handle the doubled traffic by distributing requests across multiple instances, ensuring no performance degradation. This approach is cost-minimal because the Standard tier supports manual scale-out without requiring a tier upgrade, and you only pay for the additional instances while they are needed.

Answer

Scale up the App Service plan to a Premium tier for more resources.

Answer

Enable autoscale on the existing plan to let Azure handle scaling automatically.

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Deploy Azure CDN to cache static content.

Question 4

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?

Accepted Answer

Region. Azure regions are discrete geographic locations containing one or more datacenters that provide the physical boundary for data residency. By deploying resources within a specific region (e.g., 'West Europe'), an organization ensures that data is stored and processed within that geographic boundary, directly addressing data sovereignty laws. Other concepts like Availability Zones or Latency do not enforce geographic data residency.

Answer

Availability Zone

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Latency

Answer

Compliance

Question 5

A company has an Azure Policy assigned to all subscriptions that denies creation of any resource without a 'CostCenter' tag. During an emergency, a team needs to create a resource without the tag. They want a temporary exception without changing the policy. What should they create?

Accepted Answer

Policy exemption. A Policy exemption allows you to create an exception for a specific resource or subscription without modifying the underlying policy definition. In this scenario, the team can request an exemption (e.g., 'Emergency' or 'Waiver' category) to bypass the 'CostCenter' tag requirement temporarily, while the policy remains enforced for all other resources.

Answer

Policy initiative

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Role assignment

Answer

Blueprint

Question 6

A company is designing a multi-tier application on Azure. The web tier needs to scale out based on CPU usage, while the database tier requires high-performance storage for transactional data. Which combination of Azure services should they choose?

Accepted Answer

Azure App Service and Azure SQL Database. Azure App Service provides built-in autoscaling based on metrics like CPU usage, making it ideal for the web tier that needs to scale out. Azure SQL Database offers high-performance, low-latency storage for transactional data with features like automatic indexing and in-memory OLTP, meeting the database tier's requirements.

Answer

Azure Functions and Azure Cosmos DB

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Azure Virtual Machine Scale Sets and Azure Files

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Azure Kubernetes Service and Blob Storage

Question 7

A team uses Docker containers to run microservices. They need a service that automatically manages the cluster, scales containers based on demand, and provides load balancing without requiring them to manage the underlying VMs. Which Azure compute service should they choose?

Accepted Answer

Azure Kubernetes Service. Azure Kubernetes Service (AKS) is the correct choice because it provides a managed Kubernetes cluster that automates container orchestration, scaling, and load balancing. AKS abstracts the underlying VMs, handling master node management, updates, and scaling based on demand, which aligns with the team's requirement to avoid VM management.

Answer

Azure Container Instances

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Azure Batch

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Azure Virtual Machine Scale Sets

Question 8

A retail company needs to process real-time inventory updates from thousands of stores simultaneously. Which Azure data ingestion service BEST handles this scale?

Accepted Answer

Azure Event Hubs. Azure Event Hubs is a big data streaming platform and event ingestion service capable of ingesting millions of events per second from concurrent sources. It is designed for high-throughput, real-time data ingestion scenarios like processing inventory updates from thousands of stores, making it the best fit for this scale.

Answer

Azure Service Bus

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Azure Queue Storage

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Azure IoT Hub

Question 9

What does 'geo-distribution' mean in cloud computing?

Accepted Answer

Deploying applications and data across multiple geographic locations worldwide. Geo-distribution in cloud computing refers to deploying applications, data, and services across multiple geographically separated data centers or regions. This ensures low latency for users worldwide, improves availability through redundancy, and supports disaster recovery by isolating failures to a single region. Azure implements this through paired regions and traffic routing policies like performance-based routing in Azure Traffic Manager.

Answer

Distributing compute resources across multiple virtual machines in a single data center

Answer

Routing network traffic to the fastest available server

Answer

Encrypting data before sending it over the network

Question 10

A company has deployed several Azure virtual machines in a VNet. The security policy requires that no VM has a public IP address. However, administrators need to connect to the VMs using RDP and SSH for management. The administrators currently use the Azure portal and must not install any additional client software on their local workstations. Which Azure service should they use to meet these requirements?

Accepted Answer

Azure Bastion. Azure Bastion provides secure, seamless RDP and SSH connectivity to Azure VMs directly from the Azure portal over TLS, without exposing any public IP addresses on the VMs. It uses a browser-based HTML5 client, so administrators do not need to install any additional client software on their local workstations, meeting all stated requirements.

Answer

Azure VPN Gateway

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Azure Firewall

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Azure ExpressRoute

Question 11

What distinguishes a 'region pair' in Azure?

Accepted Answer

Two Azure regions paired for disaster recovery and update isolation. A region pair consists of two Azure regions within the same geography, at least 300 miles apart, that are directly connected via high-speed fiber and are used for disaster recovery and planned maintenance isolation. This design ensures that only one region in a pair is updated at a time, reducing the risk of simultaneous failures across both regions.

Answer

Two datacenters within the same city connected by high-speed fiber

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Two subscriptions in the same Azure AD tenant

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Primary and secondary zones within a single Azure region

Question 12

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?

Accepted Answer

Consumption-based pricing. This scenario describes the shift from upfront capital expenditure (CapEx) for hardware and licenses to a variable operational expenditure (OpEx) model based on actual resource consumption. Azure's consumption-based pricing (also called pay-as-you-go) directly matches this description, as customers are billed only for the compute, storage, and networking resources they use each month, with no upfront commitment or sunk cost for idle capacity.

Answer

High availability

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Scalability

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Disaster recovery

Question 13

A company wants to host a static website (HTML, CSS, JavaScript) that is accessed by users worldwide. They need a low-cost solution that provides high availability and global reach without managing servers. Which Azure service is most cost-effective for this scenario?

Accepted Answer

Azure Blob Storage with static website hosting. Azure Blob Storage with static website hosting is the most cost-effective solution because it allows you to host static content (HTML, CSS, JavaScript) directly from a storage container without provisioning any virtual machines or app service plans. It provides built-in high availability through geo-redundant storage (GRS) and global reach via integration with Azure CDN, while the pay-per-GB storage model and no compute costs keep expenses minimal.

Answer

Azure App Service

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Azure Virtual Machines

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Azure CDN

Question 14

What is the purpose of Azure Resource Manager (ARM)?

Accepted Answer

To provide a unified deployment and management layer for all Azure resources. Azure Resource Manager (ARM) is the native management layer that enables you to deploy, manage, and organize Azure resources as a single logical entity. It provides a consistent management plane for all Azure services through declarative templates (ARM templates), role-based access control (RBAC), and tagging, ensuring that resources are provisioned and governed uniformly across the entire subscription.

Answer

To provide virtual machine operating system management

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To monitor Azure resource performance

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To replicate data across Azure regions

Question 15

Which Azure service provides automatic failover and load balancing for SQL Server databases across multiple Azure VMs?

Accepted Answer

SQL Server Always On availability groups on Azure VMs. B is correct because SQL Server Always On availability groups on Azure VMs provide native high availability and disaster recovery for SQL Server, including automatic failover between replicas and built-in read/write load balancing via listener endpoints. This service operates at the SQL Server instance level, supporting multiple Azure VMs in an availability set or availability zone, and uses Windows Server Failover Clustering (WSFC) for health monitoring and automatic failover.

Answer

Azure SQL Database with active geo-replication

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Azure Load Balancer

Answer

Azure Site Recovery