A corporation is looking to expand their data center but has run out of physical space in which to store
hardware. Which of the following would offer the ability to expand while keeping their current data
center operated by internal staff?

A.
Virtualization

B.
Subnetting

C.
IaaS

D.
SaaS

Explanation:
Virtualization allows a single set of hardware to host multiple virtual machines.
Incorrect Answers:
B: Subnetting is how networks are divided.
C, D: These are models of Cloud Computing.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis,
2014, pp. 17, 19, 89