Quiz: Hypervisors and Virtual Machines

What is the primary role of a hypervisor?

• To run only a single operating system

• To partition surplus resources for virtual machines

• To replace physical hardware

• To store backups of servers

Answer explanation

The primary role of a hypervisor is to partition surplus resources for virtual machines, allowing multiple operating systems to run concurrently on a single physical host, rather than running just one or replacing hardware.

Which type of hypervisor runs directly on hardware?

• Type 1

• Type 2

• Both A and B

• None of the above

Answer explanation

A Type 1 hypervisor, also known as a bare-metal hypervisor, runs directly on the host's hardware, allowing for better performance and efficiency. In contrast, Type 2 hypervisors run on top of an operating system.

Which of the following is a Type 2 hypervisor?

• VMware vSphere

• Oracle VM Server

• VMware Workstation

• Microsoft Hyper-V

Answer explanation

VMware Workstation is a Type 2 hypervisor, meaning it runs on top of a host operating system. In contrast, VMware vSphere and Microsoft Hyper-V are Type 1 hypervisors, which run directly on hardware.

What makes persistent VDI unique?

• It is cost-effective

• It saves all user changes and customizations

• It always uses a thin client

• It does not save user changes

Answer explanation

Persistent VDI is unique because it saves all user changes and customizations, allowing users to maintain their personalized settings and data across sessions, unlike non-persistent VDI which resets to a default state.

Which feature is NOT associated with Type 1 hypervisors?

• Higher efficiency

• Running directly on hardware

• Needs a host operating system

• Preferred for production environments

Answer explanation

Type 1 hypervisors run directly on hardware without needing a host operating system, which distinguishes them from Type 2 hypervisors that do require one. Thus, 'Needs a host operating system' is NOT associated with Type 1 hypervisors.

What is the key disadvantage of linked clones?

• They take too long to create

• They require ongoing access to the parent VM

• They cannot be backed up

• They consume more resources

Answer explanation

The key disadvantage of linked clones is that they require ongoing access to the parent VM. If the parent VM is unavailable, the linked clone cannot function properly, limiting its usability.

What does VDI stand for?

• Virtual Data Infrastructure

• Virtual Desktop Infrastructure

• Virtual Device Integration

• Virtual Deployment Interface

Answer explanation

VDI stands for Virtual Desktop Infrastructure, which refers to a technology that allows users to access desktop environments hosted on a centralized server. This option is the correct definition among the choices provided.

Which hypervisor is Microsoft's native solution?

• VMware Workstation

• Oracle VM Server

• Hyper-V

• VirtualBox

Answer explanation

Hyper-V is Microsoft's native hypervisor, designed for creating and managing virtual machines on Windows. The other options, like VMware Workstation and Oracle VM Server, are not Microsoft solutions.

Which of the following is a key benefit of virtual machines?

• Increased need for physical hardware

• Isolation and security

• Dependency on host machines

• Performance overhead

Answer explanation

A key benefit of virtual machines is their isolation and security, allowing multiple environments to run independently on the same hardware, reducing the risk of interference and enhancing security.

What is a golden image in virtualization?

• A. A backup system for hypervisors

• B. A base template for creating VMs

• C. A high-performance hypervisor

• D. A thin client model

Answer explanation

A golden image is a pre-configured template used to create virtual machines (VMs). It includes the operating system and applications, making option B the correct choice.