Computer Networking What is the name of the device that converts computer output into a form that can be transmitted over a telephone line? Modem None of these Concentrator Teleport Multiplexer Modem None of these Concentrator Teleport Multiplexer ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What frequency range is used for microwave communications, satellite and radar? Medium Frequency : 300 kHz to 3 MHz Low Frequency : 30 kHz to 300 kHz None of these Super High Frequency : 3000 MHz to 30000 MHz Extremely High Frequency :30,000 MHz Medium Frequency : 300 kHz to 3 MHz Low Frequency : 30 kHz to 300 kHz None of these Super High Frequency : 3000 MHz to 30000 MHz Extremely High Frequency :30,000 MHz ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take? None of these 2 seconds 12 seconds 120 seconds 20 seconds None of these 2 seconds 12 seconds 120 seconds 20 seconds ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Error detection at a data link level is achieved by cyclic redundancy codes bit stuffing None of these equalization Hamming codes cyclic redundancy codes bit stuffing None of these equalization Hamming codes ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A distributed data processing configuration in which all activities must pass through a centrally located computer is called a: ring network data control network hierarchical network None of these spider network ring network data control network hierarchical network None of these spider network ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The geostationary satellite used for communication systems All of these None of these remains stationary relative to the earth is positioned over equator rotates with the earth All of these None of these remains stationary relative to the earth is positioned over equator rotates with the earth ANSWER DOWNLOAD EXAMIANS APP
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