Which of the following data security techniques will allow Matt, an IT security technician, to encrypt a system with speed as its primary consideration?

A.
Hard drive encryption

B.
Infrastructure as a service

C.
Software based encryption

D.
Data loss prevention

Explanation:
Disk and device encryption encrypts the data on the device. This feature ensures that the data on the device cannot be accessed in a useable form should the
device be stolen. It should be implemented using a hardware-based solution for greater speed.
Incorrect Answers:
B: The Infrastructure as a Service (IaaS) model is a cloud computing business model uses virtualization, with the clients paying for resources used. It is not a data
security technique.
C: Software based encryption is usually slower than hardware based encryption. D. Data loss prevention is the purpose of encryption; it is not a data security
technique.

Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, Sixth Edition, Sybex, Indianapolis, 2014, pp 418-419
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp 236,