QA

     

Q&A

As mentioned in the introduction, "All About the CCNP, CCDP, and CCIP Certifications," 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.

1:	Identify one criterion to help determine a subnet mask for classless addressing when designing a network-addressing scheme.
2:	With a classless address of 204.1.64.0/20, what is the range of classful addresses that are included in the address? Write your answer in dotted decimal and the third octet in binary notation.
3:	What is a discontiguous network?
4:	For VLSM to be available as a design option in the network, what characteristic must the routing protocol possess?
5:	If summarization is to be implemented in the network, name one design criterion for the addressing scheme that must be in place.
6:	If the host portion of a subnet has been used to identify end devices, can that subnet be used again for VLSM?
7:	Give one example of when route summarization would not be a good solution.
8:	Give one reason for implementing route summarization.
9:	Given an address of 133.44.0.0 and a prefix mask of /25, how many networks can be addressed, and how many hosts can exist on each network? Write the first and last possible subnets in binary and decimal notation.
10:	What class of address is 131.188.0.0, and how many hosts can be addressed if no subnetting is used?
11:	Write out the decimal notation of the following subnet mask presented in the binary notation of 11111111.11111111.11111111.11111000.
12:	Is 201.111.16.0/20 a valid subnet mask?
13:	Briefly define route summarization.
14:	What sort of design scheme does route summarization require?
15:	In route summarization, in which direction is the network/host boundary in the subnet mask moved?
16:	Explain how summarization allows for smaller routing tables?
17:	What is the subnet mask for a /21 prefix?
18:	What is the default subnet mask for the IP address 192.18.16.15?
19:	State whether 131.104.0.0/13 is an example of CIDR or VLSM routing.
20:	State how many classful addresses are summarized in the address 131.104.0.0/13.