QA

     

Q&A

As mentioned in the introduction, you have two choices for review questions. The questions that follow next give you a bigger challenge than the exam itself by using an open -ended question format. By reviewing now with this more difficult question format, you can exercise your memory better and prove your conceptual and factual knowledge of this chapter. The answers to these questions are found in Appendix A.

For more practice with examlike question formats, including questions using a router simulator and multichoice questions, use the exam engine on the CD-ROM.

1:	If the weight attribute is used, is a higher or lower weight preferred?
2:	What is an alternative to using BGP as the method of connection to the ISP?
3:	What does the command clear ip bgp * achieve, and why should it be used cautiously?
4:	Give three situations in which you should not use BGP to connect to the Internet.
5:	Explain the use of the command neighbor 10.10.10.10 remote-as 250 .
6:	Explain briefly the purpose of the community attribute.
7:	In the route selection process, place the following in order of preference: origin code, weight, local preference, and MED. State the method of selection for the individual attributes themselves .
8:	What is a mandatory attribute?
9:	What type of routing protocol is BGP classified as, and what does this mean?
10:	Explain how static routes can be used as an alternative to configuring BGP to connect to another autonomous system.
11:	Explain how a default route can be used as an alternative to configuring BGP to connect to another autonomous system.
12:	State two attributes of BGP.
13:	State four message types of BGP.
14:	What is policy-based routing?
15:	What do the letters MED represent? Give a brief explanation of what MED does.
16:	What is a community in BGP?
17:	Give two reasons why BGP peer groups are useful.
18:	What is the difference between a peer and a neighbor?
19:	In BGP, describe the purpose of the network command.
20:	Explain the command neighbor { ip-address peer- group - name } next-hop-self .