Computer Networking Which of the following describes the creation of private networks across the Internet, enabling privacy and tunneling of non-TCP/IP protocols? HDLC VPN Cable IPSec xDSL HDLC VPN Cable IPSec xDSL ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which network is a cross between circuits switched network and a data-gram network? Virtual-circuit network Virtual-circuit identifier None of these Circuit-switched network Virtual-circuit network Virtual-circuit identifier None of these Circuit-switched network ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following refers to the terms "residual error rate"? None of these the probability that one or more errors will be detected when an error detection mechanism is used the number of bit errors per twenty four hours of continuous operation on an asynchronous line signal to noise ratio divided by the ratio of energy per bit to noise per hertz The probability that one or more errors will be undetected when an error detection scheme is used None of these the probability that one or more errors will be detected when an error detection mechanism is used the number of bit errors per twenty four hours of continuous operation on an asynchronous line signal to noise ratio divided by the ratio of energy per bit to noise per hertz The probability that one or more errors will be undetected when an error detection scheme is used ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What layer of the OSI model would you assume the problem is in if you type show interface serial 1 and receive the following message? "Serial1 is down, line protocol is down." Data Link layer Physical layer None. It is a router problem. Network layer Data Link layer Physical layer None. It is a router problem. Network layer ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A 8-Mbps token ring has a token holding timer value of 10 msec. What is the longest frame (assume header bits are negligible) that can be sent on this ring? 80,000 B frame 10,000 B frame 8 x 105 bit frame 8000 B frame 80,000 B frame 10,000 B frame 8 x 105 bit frame 8000 B frame 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 source address and port to the MAC address table and forward the frame out the destination port Add the destination to the MAC address table and then forward the frame Flood the network with the frame Discard it and send an error message back to the originating host Add the source address and port to the MAC address table and forward the frame out the destination port Add the destination to the MAC address table and then forward the frame 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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