Appendix A

Answers to the “Do I Know This Already?” Quizzes and Review Questions

Chapter 1

Do I Know This Already?

1. D

2. C

3. C

4. B

Review Questions

1. A. Encrypting data is all about confidentiality, hashing is all about integrity, and redundancy is all about availability. Therefore, hashing data at rest is an example of integrity. Hashing allows you to verify that the data has not been altered by comparing the hash value generated on receipt of the data to the original hash value from when the data was originally put at rest or before it was transmitted. When the hash values match, you know the data has not changed at rest or in transit.

2. C. Fixing vulnerabilities in an environment to eliminate or reduce the risk associated with a ...

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