Chapter 18 Practice Test Answers

Chapter 18 Practice Test Answers
1. A, B, and D. These items should be readily available to you:
network interface cards
network cables
2. A. In addition to attaching terminators to standard AWG wire, crimpers are
commonly used to connect coaxial cable with BNC connectors.
3. D. The wire used for electricity in homes is AWG number 12 or 14. The wire
used to connect telephones is usually 22, 24, or 26. The higher the gauge, the
smaller the diameter.
4. C. Media testers are used to test cable media, or, in plain language, network and
telephone cables.
5. B. Continuity testing is used to determine if a cable meets the electrical standards
identified by the manufacturer.
6. C. Capacitance can tell you if the cable is kinked or has been stretched.
7. A. Time Domain Reflectometers (TDR) send an electrical signal down a length of
cable and then record the amount of time it takes for the signal to reflect back.
8. A. Time Domain Reflectometers are used to determine if the cable is broken or
has a short.
9. C. Optical testers are commonly used to evaluate connector joints and splices in
the cabling system and to locate faults.
10. C. Punch-down tools are used to attach telephone and data wires to punch-down
blocks and to the rear side of patch panels.
11. D. A tone probe is used to detect the tone of a tone generator.
12. A and C. Many devices have built in lights that are designed to show you when a
connection has been made and when data collisions occur.