Master Virtualization Technologies: Hypervisors and Virtual Machines

Question 1

In a virtualized environment, what is the main function of a hypervisor?

Accepted Answer

Creating and managing separate virtual machines on a single physical host, each with its own operating system and applications.

Answer

Providing a graphical user interface (GUI) for administrators to monitor and manage virtual machines.

Answer

Translating guest operating system calls into instructions that the physical hardware can execute.

Question 2

Which of the following is NOT a component of a virtual machine?

Accepted Answer

Physical storage device

Answer

Virtual CPU

Answer

Virtual memory

Answer

Virtual storage

Question 3

What is the primary responsibility of a hypervisor?

Accepted Answer

To manage virtual machines and provide a hardware abstraction layer

Answer

To enhance network performance

Answer

To protect against malware

Answer

To provide a graphical user interface for managing virtual machines

Question 4

What is the main purpose of using a virtual switch in a virtualized environment?

Accepted Answer

To connect virtual machines to each other and external networks

Answer

To improve network performance

Answer

To provide additional security

Answer

To manage virtual machine storage

Question 5

Which of the following is **not** a hypervisor type?

Accepted Answer

Paravirtual

Answer

Type 1 (Bare-metal)

Answer

Type 2 (Hosted)

Answer

Type 4 (Microvisor)

Question 6

What is a key benefit of using a Type 1 hypervisor?

Accepted Answer

Provides better performance due to direct hardware access

Answer

Offers simpler setup compared to Type 2 hypervisors

Answer

Supports a wider range of operating systems than Type 2 hypervisors

Answer

Enhances security by isolating virtual machines (VMs)

Question 7

What is the primary function of virtual network interface cards (vNICs) in a virtualized environment?

Accepted Answer

Provide network connectivity between the virtual machine and external networks

Answer

Manage memory within virtual machines

Answer

Translate guest OS instructions for execution on the host hypervisor

Answer

Store data on persistent storage devices

Question 8

What is the main difference between a monolithic hypervisor and a microvisor?

Accepted Answer

Microvisors run on top of a host operating system, while monolithic hypervisors run directly on hardware.

Answer

Monolithic hypervisors manage all virtualization resources, while microvisors focus on specific tasks.

Answer

Monolithic hypervisors are more efficient due to fewer software layers.

Answer

There is no significant difference between them.

Question 9

Which virtualization technology allows guest operating systems to run unmodified on the host hypervisor?

Accepted Answer

Paravirtualization

Answer

Hardware-assisted virtualization

Answer

Full virtualization

Answer

Operating system-level virtualization

Question 10

How do guest and host operating systems differ in a virtualized environment?

Accepted Answer

Guest operating system runs inside a VM, while host operating system runs on the physical machine.

Answer

Host operating system runs inside a VM, while guest operating system runs on the physical machine.

Answer

There is no difference between guest and host operating systems.

Answer

Guest operating system provides the user interface, while host operating system manages hardware resources.

Question 11

Which of the following is NOT a benefit of virtualization?

Accepted Answer

Increased hardware costs

Answer

Improved flexibility

Answer

Reduced hardware requirements

Answer

Enhanced application compatibility

Question 12

Which type of hypervisor operates directly on hardware, providing a bare-metal virtualization environment?

Accepted Answer

Type 1 hypervisor

Answer

Hosted hypervisor

Answer

Virtual machine manager

Answer

Guest operating system

Question 13

What is the primary purpose of a virtual machine?

Accepted Answer

To emulate a physical computer by providing a software-based environment for running guest operating systems

Answer

To manage network traffic and provide security

Answer

To store and manage virtualized data

Answer

To interface directly with hardware devices

Question 14

What is the primary distinction between a Type 1 and Type 2 hypervisor?

Accepted Answer

Type 1 hypervisors run directly on hardware, while Type 2 hypervisors operate within a host operating system.

Answer

Type 1 hypervisors support multiple guest operating systems, while Type 2 hypervisors support only one.

Answer

Type 1 hypervisors are more efficient than Type 2 hypervisors.

Question 15

Which of the following is a potential drawback of virtualization?

Accepted Answer

Increased security risks due to the sharing of resources and potential vulnerabilities in the virtualization layer

Answer

Improved application performance

Answer

Reduced hardware costs

Answer

Enhanced flexibility

Question 16

What is the primary responsibility of a virtual machine monitor?

Accepted Answer

To manage and oversee the execution of virtual machines on a host system, allocating resources and ensuring proper operation

Answer

To create and configure virtual machines

Answer

To provide security and isolation for virtual machines

Question 17

What is the purpose of hypervisor resource scheduling?

Accepted Answer

To efficiently allocate and manage hardware resources among virtual machines

Answer

To protect virtual machines from security threats

Answer

To create and delete virtual machines

Question 18

Which of the following is a widely used open-source hypervisor?

Accepted Answer

KVM

Answer

VMware ESXi

Answer

Citrix XenServer

Answer

Hyper-V

Question 19

Which of the following is NOT a type of hypervisor?

Accepted Answer

Bare-metal

Answer

Hosted

Answer

Type 2

Answer

Type 1

Question 20

What is the primary function of a hypervisor?

Accepted Answer

To manage and isolate multiple virtual machines on a single physical server.

Answer

To allocate resources to virtual machines.

Answer

To provide a graphical user interface for virtual machines.

Question 21

Which of the following tools can be used to create and manage virtual machines?

Accepted Answer

VMware Workstation

Answer

PowerShell

Answer

Notepad

Answer

Google Chrome

Question 22

What is a snapshot in the context of virtual machines?

Accepted Answer

A point-in-time copy of a virtual machine's state.

Answer

A backup of a virtual machine's data.

Answer

A method for migrating a virtual machine to a different server.

Answer

A change log of a virtual machine's configuration.