220-1101 Virtualization and Cloud Computing Practice Test 5 — 15 Questions

Question 1

A research organization requires a cloud environment that is exclusively used by their team and physically isolated from other organizations. They need complete control over the underlying infrastructure, including the ability to configure hypervisors and virtual switches. Which cloud deployment model should they choose?

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

Accepted Answer

Private cloud. A private cloud is the correct choice because it provides a dedicated, single-tenant environment that is physically isolated from other organizations. This model gives the research team complete control over the underlying infrastructure, including hypervisors and virtual switches, enabling custom configuration and management.

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Public cloud

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Community cloud

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Hybrid cloud

Question 2

A company uses a public IaaS provider to host a web application. To protect against DDoS attacks, they configure a security appliance that inspects incoming traffic before it reaches the web servers. This appliance runs on a separate virtual machine in the same cloud environment. Which of the following cloud security concepts does this scenario BEST describe?

Accepted Answer

Network virtual appliance. The scenario describes a security appliance running on a separate virtual machine that inspects incoming traffic before it reaches the web servers. This is the definition of a Network Virtual Appliance (NVA) — a virtual machine-based security device (e.g., virtual firewall, IDS/IPS) deployed in a public IaaS environment to filter or inspect traffic. Option C is correct because the appliance is explicitly a separate VM performing a dedicated network security function, which is the core characteristic of an NVA.

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Virtual private cloud (VPC)

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Security group

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Resource pooling

Question 3

A company decides to migrate its on-premises customer relationship management (CRM) software to the cloud. They want to avoid managing the underlying servers, operating systems, and runtime environments. They also want to focus only on configuring the CRM application to meet their business needs. Which cloud service model should they choose?

Accepted Answer

Software as a Service (SaaS). (SaaS) is correct because the company wants to avoid managing servers, operating systems, and runtime environments, and only configure the CRM application. SaaS delivers a fully managed application over the internet, where the provider handles all underlying infrastructure, platform, and software maintenance, aligning perfectly with the requirement to focus solely on business configuration.

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Infrastructure as a Service (IaaS)

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Platform as a Service (PaaS)

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Desktop as a Service (DaaS)

Question 4

A company wants to migrate its custom web application to the cloud. The development team needs full administrative access to the operating system, the ability to install custom middleware, and control over security configurations. They want to avoid managing the physical servers, hypervisors, and data center infrastructure. Which cloud service model should the company choose?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, giving the development team full administrative access to the operating system, the ability to install custom middleware, and control over security configurations. The cloud provider manages the physical servers, hypervisors, and data center infrastructure, while the customer retains control over the OS, storage, and deployed applications. This matches the requirement for full OS-level access without managing the underlying hardware.

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Platform as a Service (PaaS)

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Software as a Service (SaaS)

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Desktop as a Service (DaaS)

Question 5

A small business wants to migrate its on-premises database to the cloud. The business wants to avoid managing the operating system and database software, but needs full control over the database schema, queries, and data. They want the cloud provider to handle patching, backup, and replication of the database engine. Which cloud service model best meets these requirements?

Accepted Answer

Platform as a Service (PaaS). Platform as a Service (PaaS) provides a managed database environment where the cloud provider handles the underlying OS, database engine patching, backups, and replication, while the customer retains full control over the database schema, queries, and data. This aligns with the requirement to avoid managing the OS and database software but still needing schema-level control.

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Infrastructure as a Service (IaaS)

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Software as a Service (SaaS)

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Desktop as a Service (DaaS)

Question 6

A company runs multiple virtual machines on a single physical server. The hypervisor is installed directly on the server hardware and does not require an underlying operating system. This configuration is an example of which of the following?

Accepted Answer

Type 1 hypervisor. A Type 1 hypervisor, also known as a bare-metal hypervisor, runs directly on the physical hardware without requiring an underlying operating system. This configuration is used in enterprise data centers to host multiple virtual machines efficiently, as the hypervisor has direct access to hardware resources like CPU, memory, and I/O, minimizing overhead.

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Type 2 hypervisor

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Infrastructure as a Service

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Virtual Desktop Infrastructure

Question 7

A healthcare organization must store electronic health records in a cloud environment that meets HIPAA compliance requirements. The organization wants to keep sensitive patient data on-premises servers while using cloud resources for less critical workloads and to handle peak demand. Which cloud deployment model would BEST meet these requirements?

Accepted Answer

Hybrid cloud. A hybrid cloud model combines on-premises infrastructure (private cloud) with public cloud resources, allowing the healthcare organization to keep sensitive patient data on-premises for HIPAA compliance while using the public cloud for less critical workloads and to handle peak demand. This architecture provides the necessary data sovereignty and security controls for protected health information (PHI) while offering scalability and cost efficiency for non-sensitive tasks.

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Public cloud

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Private cloud

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Community cloud

Question 8

A cloud provider tracks a customer's usage of storage, processing power, and network bandwidth on a per-hour basis. At the end of the month, the customer receives a bill that exactly matches the resources consumed. Which essential cloud characteristic does this scenario BEST illustrate?

Accepted Answer

C. Measured service. The scenario describes a cloud provider tracking resource usage (storage, processing power, network bandwidth) per hour and billing exactly for what was consumed. This directly illustrates the 'Measured service' characteristic, where cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts). The pay-per-use billing model is a direct outcome of this measured service.

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A. Rapid elasticity

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B. On-demand self-service

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D. Resource pooling

Question 9

A company currently hosts its own on-premises email server. To reduce hardware maintenance overhead, they decide to move the email server to the cloud. They require the ability to install and manage their own email application (e.g., Microsoft Exchange), including the underlying operating system, while the cloud provider is responsible for the physical infrastructure and virtualization layer. Which cloud service model best meets these requirements?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, including virtual machines with full control over the operating system and applications. This model allows the company to install and manage their own email application (e.g., Microsoft Exchange) and the underlying OS, while the cloud provider handles the physical hardware and virtualization layer. The requirement to manage the OS and application rules out PaaS and SaaS, which abstract away that control.

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Platform as a Service (PaaS)

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Software as a Service (SaaS)

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Desktop as a Service (DaaS)

Question 10

A company wants to migrate its customer relationship management (CRM) application to the cloud. The CRM requires a specific version of Windows Server and custom software that the IT team needs to install and manage. The company wants to minimize hardware costs but retain full control over the operating system and applications. Which cloud service model is most appropriate?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, including virtual machines with full control over the operating system and installed software. This model allows the company to run a specific version of Windows Server and custom CRM software while minimizing hardware costs through shared infrastructure.

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Software as a Service (SaaS)

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Platform as a Service (PaaS)

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Desktop as a Service (DaaS)

Question 11

A company wants to migrate its internal web application to the cloud to reduce hardware maintenance costs and improve scalability. The IT team needs full control over the operating system and application software, but they want the cloud provider to manage the physical servers and virtualization layer. Which cloud service model best meets these requirements?

Accepted Answer

Infrastructure as a Service (IaaS). Infrastructure as a Service (IaaS) provides virtualized computing resources over the internet, giving the IT team full control over the operating system, applications, and middleware while the cloud provider manages the physical hardware and hypervisor layer. This matches the requirement for reduced hardware maintenance and scalability without sacrificing OS-level control.

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Platform as a Service (PaaS)

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Software as a Service (SaaS)

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Desktop as a Service (DaaS)

Question 12

A company runs a critical database server on a virtual machine hosted on a Type 1 hypervisor. The requirement is that the database server must remain operational and accessible even if the underlying physical host experiences a hardware failure. Which of the following virtualization features should be implemented to achieve this goal?

Accepted Answer

Fault tolerance. Fault tolerance (B) is correct because it creates a secondary, shadow virtual machine that runs in lockstep with the primary VM. If the physical host fails, the secondary VM takes over instantly with no data loss or downtime, ensuring the database server remains operational.

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Live migration

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Load balancing

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Snapshot

Question 13

A company wants to allow multiple developers to each have their own isolated environment on a single physical server. Each developer needs full control over their own operating system and the ability to install custom applications. Which technology is BEST suited for this requirement?

Accepted Answer

Virtualization. Virtualization (A) is the best choice because it allows multiple virtual machines (VMs) to run on a single physical server, each with its own full operating system (OS) instance. Each developer gets isolated, full control over their OS and can install custom applications, as the hypervisor (e.g., VMware ESXi, Microsoft Hyper-V) abstracts the hardware and allocates dedicated resources (CPU, RAM, storage) per VM.

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Containerization

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Cloud computing

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Dual boot

Question 14

A company runs a critical web server on a virtual machine hosted on a Type 1 hypervisor cluster. The cluster consists of two physical hosts connected to a shared storage array. The IT manager requires that if one host fails, the VM should automatically restart on the other host without manual intervention. Which virtualization feature should be configured?

Accepted Answer

High Availability. High Availability (HA) is the correct feature because it automatically restarts a virtual machine on a surviving host in a cluster when the original host fails, without requiring manual intervention. This is achieved by monitoring heartbeat signals between hosts and the shared storage; if a host stops responding, HA triggers the VM restart on another host. The scenario explicitly requires automatic restart on host failure, which is the primary function of HA in a Type 1 hypervisor cluster.

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Live Migration

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Fault Tolerance

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Load Balancing

Question 15

A small business uses a cloud service where they can deploy custom web applications written in various programming languages. They do not want to manage any servers, operating systems, or runtime environments. The cloud provider handles all underlying infrastructure, scaling, and patching. Which cloud service model is being used?

Accepted Answer

Platform as a Service (PaaS). Platform as a Service (PaaS) provides a managed platform where developers can deploy custom applications without managing the underlying servers, operating systems, or runtime environments. The cloud provider handles infrastructure, scaling, and patching, which matches the scenario exactly.

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Infrastructure as a Service (IaaS)

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Software as a Service (SaaS)

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Desktop as a Service (DaaS)