TEL102: Telecommunications 2

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Assignment 3

1. Why is a digital transmission more reliable than an analog transmission?
2. What is data modulation?
3. There are three transmission directions, which one applies to a dialup Internet connection?
4. Which multiplexing technology is used with fiber-optic?
5. In which type of system must all other nodes wait when one node is transmitting?
6. One of the most common transmission flaws affecting data is _______________.
7. The flaw that causes a signal to lose strength as it travels away from the source is called _______________.
8. A higher twist ratio results in better resistance to crosstalk and greater ____________________.
9. Identify the differences between CAT5 and CAT5e?
10. Why is STP more expensive than UTP?
11. Identify the transmission type and topology used by 100BASE-T.
12. 1000BASE-T has a segment length of 100 meters. What is the maximum distance between nodes?
13. Identify the most significant drawback to the use of fiber in a network.
14. What is the relationship between modal bandwidth and reliable signal carrying over fiber?
15. Identify the six subsystems of structured cabling according to TIA/EIA.
16. What can many network problems be traced to?
17. Install cable at least ___ feet away from sources of EMI.
18. Identify a wireless system that uses a directional antenna.
19. Attenuation is a problem affecting wireless signals but _______________ may be a more significant problem.
20. Which type of WLAN relies on an access point?

Know the following terms:

• Ad Hoc
• Attenuation
• Baseband
• Broadband
• Broadcast
• Cable Plant
• Cladding
• Fading
• Modulation
• Optical Loss
• Transceiver
• Twist Ratio
• WAP
• Wireless Spectrum