Understanding Virtualization Concepts

What is virtualization in computing?

• Virtualization is a method to increase the speed of a computer's CPU.

• Virtualization is the abstraction of computing resources, enabling multiple virtual instances to run on a single physical system.

• Virtualization refers to the use of multiple physical systems for a single application.

• Virtualization is the process of creating physical servers.

Name two types of virtualization.

• Storage virtualization

• Network virtualization

• Application virtualization

• Server virtualization, Desktop virtualization

What is a hypervisor?

• A hypervisor is a hardware component that stores data.

• A hypervisor is a network protocol for data transfer.

• A hypervisor is a type of physical server.

• A hypervisor is software that creates and runs virtual machines.

Explain the difference between Type 1 and Type 2 hypervisors.

• Type 1 hypervisors are slower than Type 2 hypervisors due to their architecture.

• Type 1 hypervisors are always virtual machines, while Type 2 hypervisors are not.

• Type 1 hypervisors require a host operating system, while Type 2 hypervisors do not.

• Type 1 hypervisors are bare-metal and run directly on hardware, while Type 2 hypervisors are hosted and run on a conventional operating system.

What are the benefits of using virtualization?

• Decreased system performance

• Limited software compatibility

• Benefits of using virtualization include improved resource utilization, cost savings, enhanced disaster recovery, simplified management, and the ability to run multiple operating systems on a single hardware platform.

• Increased hardware costs

What is a virtual machine (VM)?

• A virtual machine (VM) is a software emulation of a physical computer.

• A virtual machine (VM) is a type of physical server.

• A virtual machine (VM) is an operating system installed on a physical machine.

• A virtual machine (VM) is a hardware component of a computer.

How does virtualization improve resource utilization?

• Virtualization improves resource utilization by allowing multiple VMs to share a single physical server, optimizing resource allocation and reducing hardware costs.

• Virtualization eliminates the need for any hardware resources.

• Virtualization decreases server efficiency by isolating resources for each VM.

• Virtualization requires more physical servers to operate effectively.

What is the role of a virtual network in virtualization?

• To enhance the graphics performance of virtual machines.

• To provide a backup solution for physical servers.

• To replace the need for physical networking hardware.

• The role of a virtual network in virtualization is to facilitate communication and resource management among virtual machines while ensuring network isolation.

What is containerization and how does it relate to virtualization?

• Virtualization and containerization are the same technology.

• Containerization does not provide any isolation between applications.

• Containerization requires a separate operating system for each application.

• Containerization is a lightweight form of virtualization that uses containers to run applications in isolated environments, sharing the host OS kernel.

Can virtualization be used for disaster recovery? Explain.

• No, virtualization is not suitable for disaster recovery.

• Yes, virtualization can be used for disaster recovery.

• Virtualization can only be used for testing, not recovery.

• Disaster recovery requires physical servers, not virtualization.