Full disk encryption is MOST effective against which of the following threats?

A.
Denial of service by data destruction

B.
Eavesdropping emanations

C.
Malicious code

D.
Theft of hardware

Explanation:
Full-disk 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. However, it does not prevent the theft
of hardware it only protects data should the device be stolen.Incorrect Answers:
A: Denial of Service (DoS) attacks web-based attacks that exploit flaws in the operating system,
applications, services, or protocols. These attacks can be mitigated by means of firewalls, routers, and
intrusion detection systems (IDSs) that detect DoS traffic, disabling echo replies on external systems,
disabling broadcast features on border systems, blocking spoofed packets on the network, and proper
patch management.
B: Full-disk 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 does not prevent eavesdropping.
C: Full-disk 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 does not mitigate against malicious
code.

Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 170-172, 252