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Do you know that computer science is a major topic in the IT curriculum? This article talks about Transmission Media set , and how it can be used to teach computer science.
1: .. is a measure of how much the strength of the signal is reduced in passing through a medium. a. Attenuation b. Amplification c. Bandwidth d. Frequency
2: __ cables are composed of a glass or plastic inner core surrounded by cladding, all encased in an outside jacket. a. Coaxial b. Fiber-optic c. Twisted-pair d. none of the above
3: __ cables carry data signals in the form of light. a. Coaxial b. Fiber-optic c. Twisted-pair d. none of the above
4: _ are used for cellular phone, satellite, and wireless LAN communications. a. Radio waves b. Microwaves c. Infrared waves d. none of the above
5: _ cable consists of an inner copper core and a second conducting outer sheath. a. Twisted-pair b. Coaxial c. Fiber-optic d. Shielded twisted-pair
6: _ cable is used for voice and data communications. a. Coaxial b. Fiber-optic c. Twisted-pair d. none of the above
Show Answer Answer: (c). Twisted-pair
7: _ is suitable for businesses that require comparable upstream and downstream data rates. a. VDSL b. ADSL c. SDSL d. both (a) and (b)
8: __ are used for short-range communications such as those between a PC and a peripheral device. a. Radio waves b. Microwaves c. Infrared waves d. none of the above
Show Answer Answer: (c). Infrared waves
9: __ cable consists of two insulated copper wires twisted together. a. Coaxial b. Fiber-optic c. Twisted-pair d. none of the above
Show Answer Answer: (c). Twisted-pair
10: _ media transport electromagnetic waves without the use of a physical conductor. a. Guided b. Unguided c. Either (a) or (b) d. None of the above