TDC 375-701 Practice 2 Not graded If you want to be well prepared for just about anything that might be thrown at you on a quiz or exam, these are some additional practice questions that will help get you there. These questions will not be graded and no answer sheet is provided. If you want to check the answers, come prepared to the next class and ask about 1 or 2 of them (sorry won't have time to get to them all). From TCP/IP Protocol Suite, 4th Edition, answer: 5.9, Questions 1-35 Also answer the following questions: Q. What is the minimum and maximum number of bits used describe an IPv4 source or destination address? Q. How many hosts could be given unique addresses if the network prefix is 192.0.2.0/26 (assume a /26 mask for all addresses)? Q. Which of the following are "bogon" addresses, that is, addresses that should definitely not appear as source or destination addresses in the current public Internet? a. 192.0.2.8 b. 127.1.2.3 c. 10.20.30.44 d. 198.172.8.2 e. 251.88.61.252 f. 12.0.0.1 Q. What is the exact number of addresses that a 32-bit address space can accommodate (ignore restrictions such as bogons, RFC 1918, netmasks and so forth)? Q. What is a command on the Microsoft Windows command line to examine the currently configured IP address(es)? On UNIX/Mac? Q. How many /26 networks can you make out of a /24 network? Q. Describe in your own words the utility of having addresses in IP (at layer 3). Q. Describe in your own words the problems that NAT attempts to solve? What potential drawbacks does it present? Q. In the Conficker real world case study presented in the first class, why did the sinkhole have multiple addresses assigned to it? Q. Check out the Bogon Reference page and tools maintained by Team Cymru: What are 3 bogon addresses, from 3 different netblocks that have not been assigned per those pages (note the date when you reference that page)? $Id: practice2.txt,v 1.1 2009/09/16 16:12:31 jtk Exp $