Computer Networking The communication mode that supports two-way traffic but only one direction at a time is multiplex None of these half duplex simplex duplex multiplex None of these half duplex simplex duplex ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Intranets and extranets can use their network fire walls and other security features to establish secure Internet links within an enterprise or with its trading partners. Select the best fit for answer: Network operating system OSI Virtual Private Network Network Server Network operating system OSI Virtual Private Network Network Server ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following are benefits of VLANs?1. They increase the size of collision domains.2. They allow logical grouping of users by function.3. They can enhance network security.4. They increase the size of broadcast domains while decreasing the number of collision domains.5. They simplify switch administration.6. They increase the number of broadcast domains while decreasing the size of the broadcast domains. 1, 3 and 5 1 and 5 2 and 4 2, 3 and 6 1, 3 and 5 1 and 5 2 and 4 2, 3 and 6 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length. m - 1 2 (2m - 1) 2 (m - 2) (2m - l)/mJ m - 1 2 (2m - 1) 2 (m - 2) (2m - l)/mJ ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Computers cannot communicate with each other directly over telephone lines because they use digital pulses whereas telephone lines use analog sound frequencies. What is the name of the device which permits digital to analog conversion at the start of a long distance transmission? Modem None of these Interface Teleprocessor Attenuation Modem None of these Interface Teleprocessor Attenuation ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What is a stub network? A network with more than one exit and entry point. A network with more than one exit point. A network that has only one entry and exit point. A network with only one entry and no exit point. A network with more than one exit and entry point. A network with more than one exit point. A network that has only one entry and exit point. A network with only one entry and no exit point. ANSWER DOWNLOAD EXAMIANS APP
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