Q&A

The questions and scenarios in this book are designed to be challenging and to make sure that you know the answer. Rather than allowing you to derive the answers from clues hidden inside the questions themselves, the questions challenge your understanding and recall of the subject.

You can find the answers to these questions in Appendix A. For more practice with exam-like question formats, use the exam engine on the CD-ROM.

1.Convert the following numbers to binary:

- 181

- 202

- 152

- 109

2.Convert the following binary numbers to decimal:

- 10101111

- 10000001

- 00111100

- 01001001

3.What is the binary representation of 192.168.0.1?
4.Specify the IP address class for each of the following addresses:

- 12.150.146.181

- 150.159.216.202

- 209.209.158.152

- 224.137.116.109

5.What are the assumed subnet masks for Class A, Class B, and Class C addresses?
6.How many host IPs are included in the following prefixes?

- /24

- /27

- /20

7.For each address in the following list, compute the range of host addresses found on its subnet:

- 24.177.78.62/27

- 135.159.211.109/19

- 207.87.193.1/30

8.Summarize the following addresses without over-summarizing:

- 192.168.160.0/24

- 192.168.162.0/23

- 192.168.161.0/24

- 192.168.164.0/22

9.Summarize the following addresses without over-summarizing:

- 172.30.31.0/24

- 172.30.32.0/24

- 172.30.33.0/24

- 172.30.34.0/23

- 172.30.36.0/23

- 172.30.38.0/24

10.List three reasons why summarization is important.