Which entity in the following list lets you run multiple operating systems on one physical server?

A.

Hypervisor

B.

Virtual machine

C.

Guest operating system

D.

Processor

Which of the following server virtualization use cases mostly provides the benefit of reducing the total cost of ownership?

A.

Hardware maintenance and server refresh

B.

Dynamic server provisioning

C.

Disaster recovery

D.

Server consolidation

Which of the following is NOT a technique of resource virtualization?

A.

Virtual LAN

B.

HyperThreading

C.

I/O redirection

D.

High-availability cluster

In system design, abstraction is about

A.

Defining the required functionalities

B.

Implementing the required functionalities

C.

Separating functionalities from implementations

D.

All of the above

Which of the following server virtualization types offers the best guest OS isolation?

A.

OS-level virtualization

B.

Para-virtualization

C.

Hardware partitioning

D.

Full virtualization

Which of the following server virtualization types introduces the least CPU and memory overhead from the virtualization layer?

A.

Hardware partitioning

B.

Para-virtualization

C.

OS-level virtualization

D.

Full virtualization