Computer Networking Who invented the modem? AT & T Information Systems, USA Wang Laboratories Ltd. Apple Computers Inc. Digital Equipment Corpn. None of these AT & T Information Systems, USA Wang Laboratories Ltd. Apple Computers Inc. Digital Equipment Corpn. None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What frequency range is used for TV transmission and low power microwave applications? None of these Medium Frequency : 300 kHz to 3 MHz Super High Frequency : 3000 MHz to 30000 MHz Ultra High Frequency : 300 MHz to 3000 MHz Very Low Frequency : 3 kHz to 30 kHz None of these Medium Frequency : 300 kHz to 3 MHz Super High Frequency : 3000 MHz to 30000 MHz Ultra High Frequency : 300 MHz to 3000 MHz Very Low Frequency : 3 kHz to 30 kHz ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The Network topology that supports bi-directional links between each possible node is Star Tree Ring Mesh Star Tree Ring Mesh ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following are types of flow control?1. Buffering2. Cut-through3. Windowing4. Congestion avoidance 1 and 2 1, 3 and 4 2 only 3 only 1 and 2 1, 3 and 4 2 only 3 only ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What is the port number for POP3? 110 49 80 90 110 49 80 90 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking If a switch receives a frame and the source MAC address is not in the MAC address table but the destination address is, what will the switch do with the frame? Add the destination to the MAC address table and then forward the frame Add the source address and port to the MAC address table and forward the frame out the destination port Flood the network with the frame Discard it and send an error message back to the originating host Add the destination to the MAC address table and then forward the frame Add the source address and port to the MAC address table and forward the frame out the destination port Flood the network with the frame Discard it and send an error message back to the originating host ANSWER DOWNLOAD EXAMIANS APP
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