Homework #4 - CSIS 625 - Fall 2002 - Section 1
Due Week 14 (Dec 9th, 2002) by classtime
If you have it submitted by Dec 2nd.  I'll get it back to you before Dec 9th.

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.

Name:

Define the following:
1) ADM:
2) ICMP:
3) UDP:
4) TCP:
5) SAP:
6) ARP:
7) DNS:

Short answer:

8) Describe the messages for a connection establishment (3 way handshake).

9) Describe the differences between a Gateway, a Router, a Repeater, and an Amplifier.

10) What is the purpose of the TTL field in the IP datagram header?

11) Write the following subnet masks in binary notation.  
a) 255.255.192.0
b) 255.255.224.0
c) 255.240.0.0

12) Find the subnetwork address and host address for the following:
a) IP address 125.34.12.56  Mask: 255.255.0.0
b) IP address 141.181.14.15 Mask: 255.255.128.0
c) IP Address 200.34.22.156 Mask: 255.255.255.240
d) IP Address 141.181.14.16 /19

13) Describe the strengths and weaknesses of public key encryption and symmetric encryption.


Optional questions - not considered as part of your grade.
These are just for myself to help with sizing the homework assignments.

Opt-1) How long did this homework assignment take you? 

Opt-2) How long on average did you need to spend for each homework?