Computer Networking Which of the following connectivity devices is used to extend a network on a purely mechanical basis? Gateway Switch 802.6 Router Active hub Gateway Switch 802.6 Router Active hub ANSWER DOWNLOAD EXAMIANS APP
Computer Networking "BAUD" rate means The rate at which the signal changes. None of these The number of bytes transmitted per unit time. The number of bits transmitted per unit time. The rate at which the signal changes. None of these The number of bytes transmitted per unit time. The number of bits transmitted per unit time. ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The signal to noise ratio for a voice grade line is 30.1 dB (decibels) or a power ratio of 1023:1. The maximum achievable data rate on this line whose spectrum ranges from 300 Hz to 4300 Hz is 9600 bps 34000 bps 31000 bps 6200 bps None of these 9600 bps 34000 bps 31000 bps 6200 bps None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following is required to communicate between two computers? access to transmission medium communications software communications hardware protocol All of these access to transmission medium communications software communications hardware protocol All of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Who invented the modem? Digital Equipment Corpn. Apple Computers Inc. AT & T Information Systems, USA Wang Laboratories Ltd. None of these Digital Equipment Corpn. Apple Computers Inc. AT & T Information Systems, USA Wang Laboratories Ltd. None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following is an advantage to using fiber optics data transmission? few transmission errors All of these resistance to data theft fast data transmission rate low noise level few transmission errors All of these resistance to data theft fast data transmission rate low noise level ANSWER DOWNLOAD EXAMIANS APP
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