Appendix B
Practice Exam
Q1. Your project involves streaming web conference content from your web servers to multiple endpoints. Because of the sensitive nature of the content, encryption is mandated. What would be the preferred algorithm?
A. 3DES
B. AES
C. RC4
D. MD5
Hint: What type of material is being encrypted and does it have any specific characteristics that are important to consider?
Reference: Chapter 13: Defensive Coding Practices
Objective: 13.3 Cryptography
Answer: C. RC4 is a stream-based cipher, and the web conference traffic requires a stream cipher for performance reasons.
A, B, and D are incorrect. 3DES and AES are symmetric block ciphers, but are poor choices for streaming media channels. MD5 is a hash algorithm, not an encryption ...
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