Computer Networking Routers operate at layer _____. LAN switches operate at layer _____. Ethernet hubs operate at layer _____. Word processing operates at layer _____. 3, 3, 2, none All of these 3, 2, 1, 7 3, 3, 1, 7 3, 2, 1, none 3, 3, 2, none All of these 3, 2, 1, 7 3, 3, 1, 7 3, 2, 1, none ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following TCP/IP protocol is used for transferring files from one machine to another? None of these ARP RARP TCP FTP None of these ARP RARP TCP FTP ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What PPP protocol provides dynamic addressing, authentication, and multilink? LCP NCP X.25 HDLC LCP NCP X.25 HDLC 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? Interface Attenuation Teleprocessor Modem None of these Interface Attenuation Teleprocessor Modem None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Error control is needed at the transport layer because of potential errors occurring _____. from packet losses. from out-of-sequence delivery in routers from transmission line noise from packet losses. from out-of-sequence delivery in routers from transmission line noise ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The frequency range : 300 kHz to 3 MHz is used for None of these TV transmission FM radio transmission microwave communications, satellite and radar AM radio transmission None of these TV transmission FM radio transmission microwave communications, satellite and radar AM radio transmission ANSWER DOWNLOAD EXAMIANS APP
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