Page 860 - (ISC)² CISSP Certified Information Systems Security Professional Official Study Guide

plethora of threats to its confidentiality, integrity, and availability.
Fortunately, many of these threats can be reduced or eliminated with

the appropriate countermeasures.

Communications security is designed to detect, prevent, and even
correct data transportation errors (that is, it provides integrity
protection as well as confidentiality). This is done to sustain the
security of networks while supporting the need to exchange and share
data. This chapter covers the many forms of communications security,

vulnerabilities, and countermeasures.
The Communication and Network Security domain for the CISSP

certification exam deals with topics related to network components
(i.e., network devices and protocols), specifically how they function
and how they are relevant to security. This domain is discussed in this
chapter and in Chapter 11, “Secure Network Architecture and Securing
Network Components.” Be sure to read and study the material in both

chapters to ensure complete coverage of the essential material for the
CISSP certification exam.