Computer Networking Who invented the modem? AT & T Information Systems, USA Apple Computers Inc. Wang Laboratories Ltd. Digital Equipment Corpn. None of these AT & T Information Systems, USA Apple Computers Inc. Wang Laboratories Ltd. Digital Equipment Corpn. None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Stephanie is in charge of a small network and wants to make it simple but secure. The users want to have full control over their data and still be able to share data with the rest of the office. The networking knowledge of the office staff is basic. Which network(s) would be the best for Stephanie to set up? Peer-to-peer Server-based Share-level WAN Master domain Peer-to-peer Server-based Share-level WAN Master domain ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost. 1/ (1 - F) P I (K + 1) None of these K I (K - P) KIK (1 + F) 1/ (1 - F) P I (K + 1) None of these K I (K - P) KIK (1 + F) ANSWER DOWNLOAD EXAMIANS APP
Computer Networking In OSI model, which of the following layer provides error-free delivery of data? Session None of these Data link transport Network Session None of these Data link transport Network ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following frequency ranges is used for AM radio transmission? Very Low Frequency : 3 kHz to 30 kHz None of these Very High Frequency : 30 MHz to 300 MHz Medium Frequency : 300 kHz to 3 MHz High Frequency : 3 MHz to 30 MHz Very Low Frequency : 3 kHz to 30 kHz None of these Very High Frequency : 30 MHz to 300 MHz Medium Frequency : 300 kHz to 3 MHz High Frequency : 3 MHz to 30 MHz ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The method of communication in which transmission takes place in both directions, but only one direction at a time is called Full Duplex Half Duplex Simplex Four wire circuit Full Duplex Half Duplex Simplex Four wire circuit ANSWER DOWNLOAD EXAMIANS APP
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