Saintleo COM309 Module 7 Assignment Latest 2018 September
COM309 Network Theory & Design
Module 7 Assignment
For this module you
are required to complete the following assignments:
? Chapter 12: exercises # 1 – 6, and
11
1. A major university
in Illinois used to place the computer output from student jobs on a table in
the computer room. This room is the same computer room that housed all the
campus’ mainframe computers and supporting devices. Students would enter the room,
pick up their jobs, and leave. What kinds of security problems might computer
services encounter with a system such as this?
2. You have forgotten
your password, so you call the help desk and ask them to retrieve your
password. After a few moments, they tell you your forgotten password. What has
just happened and what is its significance?
3. Create (on paper) a
simple example of a substitution-based cipher.
4. Create (on paper) a
simple example of a transposition-based cipher.
5. Using the Vigenére
Cipher and the key NETWORK, encode the phrase “this is an interesting class.”
6. Using the
transposition-based cipher from this chapter and the same key, COMPUTER, encode
the phrase “birthdays should only come once a year.”
11. One feature of a
firewall is its ability to stop an outgoing IP packet, remove the real IP
address, insert a “fake” IP address, and send the packet on its way. How does
this feature work? Do you think it would be effective?
Thinking Outside the Box #4
You have a computer at
home with a wireless MIC and wireless router. List all the security measures
that should be employed so that your home network is secure.
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