TDC 375                                                 John Kristoff
Final Exam Guide                                    November 19, 2003


Exam Format

The final exam will consist of multiple choice, fill in the blank and
short essay questions.  The exam will take you about 1 to 1 1/2 hours to
complete, but you have as much time as you need.  If you are having an
unreasonably difficult time with the exam, chances are others are as
well.  Do the questions you know best first and go back to the hard ones
later.  There is a grading curve for the final grade to correct any
problems in the exam or my instruction that led up to the exam.

The exam is open book, open notes.  You may not use electronic
devices with any communications capability (e.g. email, chat,
text messaging, file transfer).  No electronic computation is
allowed.  Electronic devices are only used if that is where
you have your notes, homeworks or access presentation/reading
material.

A final word of caution, DO NOT CHEAT!

Topics Covered

The book, required reading and optional reading should be used as
reference material to study from.  However, class lectures and class
discussions are as equally as important references for the exam.  Below
is a list of concepts you should have mastered in order to do well on
the exam.

VI.   IPv6
      A. Addressing
      B. Key features and differences from IPv4

VII   Multicast
      A. Group Addressing
      B. Ethernet encoding rules
      C. IGMP
      D. Flood-and-prune (dense) versus spare protocols
      E. Currently deployed inter-domain protocol concepts
         1. PIM-SM
         2. MBGP
         3. MSDP

VIII. TCP
      A. Protocol basics and features
      B. 3-way handshake
      C. Flow control
      D. Connection termination
      E. Congestion principles
         1. Sliding window
         2. Congestion control/avoidance
         3. Retransmissions
         4. Slow start
           
IX.   Miscellaneous
      A. Class discussions and exercises
      B. Readings and videos
      C. Online sites, tools and pointers

You should be familiar with the tools, discussions and examples
we used in class.  Please review your course notes, coure online
material and course homepage for reference.

Sample Exam Questions

1. Give 3 example TCP segments that contain invalid combinations
   of flags.

2. Discuss strategies for computing the RTT for use in TCP
   retransmissions. 

3. How does a TCP receiver close the advertised window?

4. Which version of IGMP does SSM require?  Why?

5. True or false, an RP is required for DVMRP.

6. When will TCP fast retransmit be activated?

7. What would be the Ethernet destination address for the
   following IP: 238.98.5.12.

8. Describe the difference between congestion control and
   congestion avoidance.

9. What is the difference between tail drop queueing and RED
   queueing?

10. If TCP segments arrive out of order, what option would be
    required for TCP endpoints to selectively acknowledge the
    out of order packets?

11. Describe at least two problems that may result with rate
    limiting traffic based on TCP port number.

12. Describe security issues with RPs.

[end]