Closed Book. Time allowed – 45 minutes. Pass mark: 12 or greater out of 20
2. The term used to describe the area over which a satellite can transmit is referred to as its... A) Event horizon B) Footprint C) Scope Line D) Latency Area
3. Electromagnetic radiation consists of two components. What are they? A) Magnets and voltmeters B) Amps and Resisters C) Electricity and magnetism D) Radar antenna and mains electricity
4. Electromagnetic waves show three properties. Which of the following is not a property of these waves? A) Reflection B) Refraction C) Divergence D) Skew
5. Radar waves travel in straight lines in open space, but close to the Earth they are bent by the varying density of the atmosphere. This is best described as A) Attenuation B) Delay Distortion C) Refraction D) Divergence
6. What is Single mode fibre optic cable also known as? A) Simplex mode B) Mono mode C) Primary mode D) Solo mode
7. Multi mode fibre-optic cable allows more than one frequency of light to be transmitted at the same time by using a technique called: A) Wave Division Multiplexing B) Light Division Multiplexing C) Pulse Division Multiplexing D) Visual Division Multiplexing
8. What type of connector is used with Cat 5 UTP? A) RG-58 B) RJ-11 C) RJ-45 D) AUI
9. What is the terms for data transmission that can only take place one way? A) Syslogging B) Standard C) Simplex D) Single
10. The main drawback of microwaves is that they can be A) absorbed by atmospheric moisture, which can interfere with the broadcast. B) weakened by electrical interference. C) only be used for voice data. D) tampered with after transmission.
11. Satellite transmission is based on A) the Earth's Orbit. B) Hexadecimal signalling C) guided media. D) line of sight.
12. Which one of the following is the maximum data rate of a 10BaseT network? A) 1Mbps B) 10Mbps C) 100Mbps D) 150Mbps
13. What or who was baud named after? A) The Baud Communications Co. B) Albert Baud C) The Baud Bros. D) Emil Baudot
14. Which one of the following is an advantage of fibre-optic cable over copper cable? A) It is cheaper. B) It is immune to EMI. C) It interfaces easily to other media types. D) It uses conventional radio waves for a carrier.
15. Which type of error checking involves adding a check bit to a byte to make it even or odd? A) Parity B) CRC C) Checksum D) Checkbit
16. Which feature of twisted pair cabling enables it to be less susceptible to interference from external sources of noise? A) Cancellation B) Near end crosstalk C) Far end crosstalk D) Intermediate Crosstalk
17. Which one of the following is NOT usually a factor that can be attributed to losses in a fibre-optic cable? A) Too many twists B) Improper splices C) Misaligned connectors D) Severe bends
18. Multi mode cable has an accepted range of up to A) 0.5km B) 1km C) 2km D) 5km
19. Which one of the following describes Cat 5 UTP cable? A) This category certifies UTP cable for data transmissions up to 100 Mbps. It consists of four twisted pairs of copper wire B) This category certifies UTP cable for data transmissions up to 20 Mbps. It consists of four twisted pairs of copper wire C) Traditional UTP telephone cable that can carry voice but not data transmissions. Most telephone cable prior to 1983 was this type of cable. D) This category certifies UTP cable for data transmissions up to 16 Mbps. It consists of four twisted pairs of copper wire with three twists per foot
20. Which of the following types of cables uses a vampire tap? A) Fibre-Optic Cable B) STP Cable C) Thinnet Cable D) Thicknet Cable