Virtualization Flashcards
Which of the following is an example of on-premises VDI (virtual desktop infrastructure) solution?
Local server hosting virtualized OS
In a persistent VDI : 2 answers
Each user runs their own copy of virtual desktop
At the end of a session,user data and personal settings are saved
Describe the characteristics of a non-persistent VDI : 2 answers
At the end of a session,user desktop reverts to its original state
Virtual desktop is shared among multiple users
Refers to a cloud-based VDI service
DaaS ( desktop as a service)
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
Describe disadvantages of virtualization: 2 answers
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 : 3 answers
Large,fast hard drive
Maximum RAM
maximum CPU cores
A set of intel CPU HAV (hardware assisted virtualization) enhancements is called :
VT-x
Refers to HAV enhancements developed by AMD for its CPUs
AMD-V
VM sprawl is used to describe a situation in which large number of deployed virtual machines lack proper administrative controls.
True
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
Which of the following security measures can be used to prevent VM sprawl? 2 answers
Usage audit
Asset documentation
What are the countermeasures against VM escape ? 2 answers
Sandboxing
Patch management
