Computer Networking Which of the following is used for modulation and demodulation? protocols multiplexer None of these gateway modem protocols multiplexer None of these gateway modem ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following TCP/IP protocol is used for remote terminal connection service? UDP FTP RARP TELNET None of these UDP FTP RARP TELNET None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Modem is used in data transmission. When was it invented and in which country? 1963, USA 1950, USA 1950, Japan None of these 1965, Germany 1963, USA 1950, USA 1950, Japan None of these 1965, Germany ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Error control is needed at the transport layer because of potential errors occurring _____. from out-of-sequence delivery from packet losses. from transmission line noise in routers from out-of-sequence delivery from packet losses. from transmission line noise in routers ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A 4 KHz noise less channel with one sample ever 125 per sec is used to transmit digital signals. Differential PCM with 4 bit relative signal value is used. Then how many bits per second are actually sent? 64 Kbps None of these 128 Kbps. 32 Kbps 8 Kbps 64 Kbps None of these 128 Kbps. 32 Kbps 8 Kbps 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 31000 bps 9600 bps None of these 34000 bps 6200 bps 31000 bps 9600 bps None of these 34000 bps 6200 bps ANSWER DOWNLOAD EXAMIANS APP
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