6 Written Questions

1. twisted pair cables are often shielded using metal in an attempt to prevent electromagnetic interference or data crosstalk.The distance data is carried is two hundred (200) meters
2. a cable with many conducting wires running parallel to each other on the same flat plane. as a result, the the cable is wide and flat.
3. phono connectors or cinch connectors; a type of electrical connector commonly used to carry audio and video signals.
4. crosstalk (XT) is any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel causing electromagnetic interference
5. an optical fiber designed to carry only a single ray of light.
6. a cable containing one or more optical fibers, coated with plastic layers suitable for any environment where the cable can be deployed.

6 Multiple Choice Questions

1. cable that is terminated by a connector with the various wires in the cable connected to contacts (pins) in the connector. Pins on one end correspond exactly to the corresponding pins on the other end.
   1. straight through cable
   2. fiber-optic cable
   3. ribbon cable
   4. crossover cable
2. a flexible, transparent fiber made of a pure glass (silica) not much wider than a human hair
   1. fiber optic
   2. ribbon cable
   3. repeater
   4. fiber-optic cable
3. D-sub; a common type of electrical connector. named for their characteristics D-shaped metal shield.
   1. D-subminiature
   2. ribbon cable
   3. RCA connectors
   4. repeater
4. connecting two devices directly, output of one to input of the other or letting two terminal (DTE) devices communicate without an interconnecting hub knot, i.e. PCs or
   linking two or more hubs, switches or routers (DCE) together, possibly to work as one wider device.
   1. crossover cable
   2. crosstalk
   3. coaxial cable
   4. ribbon cable
5. cable found in many ethernet networks and telephone systems used in data networks for short and medium length connections because of its relatively lower costs. The data transfer distance is one hundred (100) meters
   1. straight through cable
   2. shielded twisted pair cable
   3. unshielded twisted pair cable
   4. fiber-optic cable
6. a device that reproduces the signal on a different frequency
   1. crosstalk
   2. repeater
   3. RCA connectors
   4. transponder

5 True/False Questions

1. coaxial cable → a cable that confines the electromagnetic wave to the area inside the cable, between the center conductor and the metallic shield.

   True        False

2. coaxial RF connector → an electrical connector designed to work with radio frequencies in the multi-megahertz range.

   True        False

3. registered Jack → an electronic device that receives a signal and retransmits it at a higher level or higher power, or onto the other side of an obstruction, so that the signal can cover longer distances.

   True        False

4. multi-mode optical fiber → an optical fiber designed to carry only a single ray of light.

   True        False

5. repeater → a device that reproduces the signal on a different frequency

   True        False