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CCNA Security 640-554 Official Cert Guide by Scott Morris, Keith Barker

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Chapter 17. Fundamentals of VPN Technology

This chapter covers the following subjects:

Understanding VPNs and why we use them

Cryptography basic components

Virtual private networks (VPN) are a huge hit, and they are not just a fad. Understanding why they are important and the underlying building blocks that make them work so well is the focus of this chapter.

“Do I Know This Already?” Quiz

The “Do I Know This Already?” quiz helps you determine your level of knowledge of this chapter’s topics before you begin. Table 17-1 details the major topics discussed in this chapter and their corresponding quiz questions.

Table 17-1 “Do I Know This Already?” Section-to-Question Mapping

1. What element in a VPN provides the P portion?

a. Data integrity ...

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