CompTIA A+ Exam 220-1101 - Virtualization Quiz Flashcards
Which is an example of on-premises VDI solution?
Local server hosting virtualized OS
In a persistent VDI:
Each user runs their own copy of virtual desktop
At the end of a session, user data and personal settings are saved
Which describe the characteristics of a non-persistent VDI?
At the end of a session, user desktop reverts to its original state
Virtual desktop is shared among multiple users
Which refers to a cloud-based VDI service?
DaaS
Which refers to a solution that allows multiple operating systems to work simultaneously on the same hardware?
Virtualization
In virtualization technology, a software program that manages multiple operating systems (or multiple instances of the same operating system) on a single computer system is known as:
Hypervisor
Which statements describe disadvantages of virtualization?
Multiple virtual machines run on a single host share hardware resources which has a degrading effect on performance
Hardware used for hosting virtual machines becomes a single point of failure
For best performance, a custom workstation designed for virtualization tasks needs:
Maximum RAM
Large, fast hard drive
Maximum CPU cores
A set of Intel CPU HAV [Hardware-assisted virtualization] enhancements is called:
VT-x
Which refers to HAV [hardware assisited virtualization] enhancements developed by AMD for its CPUs?
AMD-V
The term “VM sprawl” is used to describe a situation in which large number of deployed virtual machines lack proper administrative controls.
TRUE / FALSE
TRUE
The term “VM escape” refers to the process of breaking out of the boundaries of a guest operating system installation to access the primary hypervisor controlling all the virtual machines on the host machine.
TRUE / FALSE
TRUE
Which security measures can be used to prevent VM sprawl?
Usage audit
Asset documentation
What are the countermeasures against VM escape?
Sandboxing
Patch management
