Study Guide for Chapters 1--5
Tom Kelliher, CS 318
Feb. 2, 2000
- Outline the growth and the impact of the Internet.
- Why is computer networking complex?
- How can one master this complexity?
For some of the following, you need to use ping and traceroute
on phoenix. To run traceroute, you may need to type
/usr/sbin/traceroute. Alternatively, you can add the path /usr/sbin
to your path. You may also need to read the man pages ( man
command) for these commands.
- Approximately speaking, when will one billion computers be connected
to the Internet?
- What does the -f option to ping do? Only the super-user
may use this option. Why?
- What does the -m to traceroute do?
- Exercise 2.2. Record delays to both on- and off-campus machines, as
well as the time of day.
- Exercise 2.6.
- What are the advantages of twisted-pair wire and coaxial cable?
- Could it be dangerous to look into the end of an active glass fiber?
- What is GEO?
- Exercises 3.6 and 3.7.
- What value does an RS-232 transmitter transmit while idle?
- What voltages correspond to what logical values in RS-232?
- In RS-232, how many bits are required to transmit a byte?
- What is baud? Can it differ from bit rate?
- What is a framing error?
- What are the differences between full duplex, half duplex, and
- What are the ramifications of Nyquist's and Shannon's theorems?
- Exercises 4.3 and 4.4.
- What is signal loss and what kind of a signal minimizes signal loss?
- What are the three types of carrier modulation?
- Dialup modems interface to PCs via RS-232 serial ports. Should the
baud rate of the serial port be set lower, equal to, or higher than the
baud rate of the dialup modem?
- What is FDM and what does it allow?
- What's the difference between baseband and broadband?
- What is spread spectrum? What recently deceased Hollywood actress
was involved in its creation? (She's named on the patent.)
- Exercises 5.2 and 5.4.
Thomas P. Kelliher
Wed Feb 2 09:37:15 EST 2000