Information Technology Reference
In-Depth Information
Q & A
The Q & A questions are more difficult than what you can expect on the actual exam. The ques-
tions do not attempt to cover more breadth or depth than the exam; however, they are designed
to make sure that you retain the material. Rather than allowing you to derive the answer from
clues hidden inside the question itself, these questions challenge your understanding and recall
of the subject. Questions from the “Do I Know This Already?” quiz are repeated here to ensure
that you have mastered the chapter's topic areas. A strong understanding of the answers to
these questions will help you on the CCIE written exam. As an additional study aide, use the
CD-ROM provided with this topic to take simulated exams.
Select the best answer. Answers to these questions are in the Appendix, “Answers to Quiz
Questions.”
Which ITU standard provides a framework for multimedia protocols for the transport of
voice, video, and data over packet-switched networks?
1
a. RTP/RCTP
b. VoIP
c. H.323
d. WFQ
Which of the following is the default codec that you use with VoIP dial peers?
2
a. G.711
b. G.723
c. G.728
d. G.729
Which authentication protocol uses TCP?
3
a. Kerberos
b. TACACS
c. RADIUS
d. AAA
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