Which of these options is not a valid mechanism for improving disk performance?

A. Replacing rotational media with solid state media

B. Replacing rotational media with higher-speed rotational media

C. Decreasing disk quotas

D. Employing a different configuration for the RAID array

Answer: C. Decreasing disk quotas helps with capacity issues, but not with performance.

Which tool allows guest operating systems to share noncritical memory pages with the host?

A. CPU affinity

B. Memory ballooning

C. Swap file configuration

D. Network attached storage

Answer: B. Memory ballooning allows guest operating systems to share noncritical memory pages with the host.

You need to divide your virtualized environment into groups that can be managed by separate groups of administrators. Which of these tools can you use?

A. Quotas

B. CPU affinity

C. Resource pools

D. Licensing Optimizing Performance

Answer: C. Resource pools allow the creation of a hierarchy of guest virtual machine groups that can have different administrative privileges assigned to them.

What do you need to employ if you have a serial device that needs to be utilized by a virtual machine?

A. Network isolation

B. Physical resource redirection

C. V2V

D. Storage migration

Answer: B. Physical resource redirection enables virtual machines to utilize physical hardware as if they were physical hosts that could connect to the hardware directly.