Border Gateway Protocol - CCIE Routing and Switching Exam Certification Guide - page 460

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. In addition to new questions, 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 under-
standing of the answers to these questions will help you on the CCIE written exam. As an addi-
tional 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.”

A router has the following configuration. Which routing protocol are you using?

1

router bgp 10
neighbor 1.1.1.1 remote-as 10
a. OBGP with an external neighbor

b. BGP with an internal neighbor

c. BGP with an external neighbor

d. EIGRP with an internal neighbor

MED is used for which of the following functions?

2

a. To give a hint to the routers on what outbound path to take

b. To give a hint to the confederation routers on what outbound path to take

c. To give a hint to the external BGP peers on what inbound path to take

d. To give a hint to local BGP peers on what inbound path to take

Which of the following best describes the BGP weight attribute?

3

a. Determines a path; not locally significant.

b. Determines a path; lowest value is preferred.

c. Locally significant; lowest value is preferred.

d. Locally significant; highest value is preferred.

What is the process by which BGP speakers in a transit AS do not advertise a route until
all routers have learned about the route through an IGP?

4

a. Redistribution

b. BGP synchronization