Computer Networking Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____. 3, 2, 1, 7 All of these 3, 3, 2, none 3, 2, 1, none 3, 3, 1, 7 3, 2, 1, 7 All of these 3, 3, 2, none 3, 2, 1, none 3, 3, 1, 7 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Why does the data communication industry use the layered OSI reference model?1. It divides the network communication process into smaller and simpler components, thus aiding component development, design, and troubleshooting.2. It enables equipment from different vendors to use the same electronic components, thus saving research and development funds.3. It supports the evolution of multiple competing standards and thus provides business opportunities for equipment manufacturers.4. It encourages industry standardization by defining what functions occur at each layer of the model. 1 only 3 only 1 and 4 2 and 3 1 only 3 only 1 and 4 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking For connecting modem, a computer must be equipped with a port that conforms to the RS-232 standard of the Electronic Industries Association of America. What do the letters 'RS' stand for? Recommended standard Recognised standard Random sequence None of these Registered source Recommended standard Recognised standard Random sequence None of these Registered source ANSWER DOWNLOAD EXAMIANS APP
Computer Networking An anticipated result from multiprogramming operations is: reduced computer idle time All of these the handling of more jobs better scheduling of work None of these reduced computer idle time All of these the handling of more jobs better scheduling of work None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following are disadvantages of using NAT?1. Translation introduces switching path delays.2. Conserves legally registered addresses.3. Causes loss of end-to-end IP traceability.4. Increases flexibility when connecting to the Internet.5. Certain applications will not function with NAT enabled.6. Reduces address overlap occurrence. 1, 3 and 5 3 and 4 2, 4 and 5 1 and 3 1, 3 and 5 3 and 4 2, 4 and 5 1 and 3 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which statements are true regarding ICMP packets?1. They acknowledge receipt of a TCP segment.2. They guarantee datagram delivery.3. They can provide hosts with information about network problems.4. They are encapsulated within IP datagrams. 3 and 4 2 and 3 2, 3 and 4 1 only 3 and 4 2 and 3 2, 3 and 4 1 only ANSWER DOWNLOAD EXAMIANS APP
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