Homework #3 - CSIS 625 - Fall 2003 - Section 1
Due Week 11 (November 17, 2003) by classtime

Email this document with your answers filled in to droelke@stthomas.edu
The email should contain your answers as plain text in the body of the document.
It should not be sent as an attachment to your email.
If you quote something for an answer - be sure to give the page number, 
which week of class notes, or the full URL, for each citation.

Name:

Define the following:
1) Circuit Switched Network:
2) Virtual Circuit:
3) ISDN BRI:
4) PAD:
5) FRAD:
6) ATM:
7) AAL:
8) VPI:
9) UBR:
 
Short Answer:
10) Compare the strengths and weaknesses of using a token passing 
technique with that of a CSMA/CD based system.

11) Compare and contrast a space division switch and a time division switch.

12) Give strengths and weaknesses of using packet switched networks 
   vs. circuit switched networks.

13) Compare switched virtual circuits with permanent virtual circuits.  

14) Explain what the B and D channels in ISDN are and what they are used for.