Which of the following statements is true with respect to virtualization?
A.
Visualization creates a layer of abstraction that allows the underlying resources to be managed
independently of the applications that run on them.
B.
Virtualization is a hardware appliance that allows the applications to run faster.
C.
Virtualization is a technology used for creating clusters to support scalability of the
infrastructure.
D.
Visualization may lead to server sprawl and decrease the overall data center utilization.
Explanation:
A: Computer hardware virtualization (or hardware virtualisation) is the virtualization
of computers or operating systems. It hides the physical characteristics of a computing platform
from users, instead showing another abstract computing platform.
C: Computer clusters have historically run on separate physical computers with the same
operating system. With the advent of virtualization, the cluster nodes may run on separate physical
computers with different operating systems which are painted above with a virtual layer to look
similar. The cluster may also be virtualized on various configurations as maintenance takes place.
Reference: Oracle White Paper, The Most Complete and Integrated Virtualization: From Desktop
to Datacenter