Computer Networking The signal to noise ratio for a voice grade line is 30.1 dB (decibels) or a power ratio of 1023:1. The maximum achievable data rate on this line whose spectrum ranges from 300 Hz to 4300 Hz is 31000 bps 34000 bps 9600 bps None of these 6200 bps 31000 bps 34000 bps 9600 bps None of these 6200 bps ANSWER DOWNLOAD EXAMIANS APP
Computer Networking You are trying to decide which type of network you will use at your office, and you want the type that will provide communication and avoid collisions on the cable. Which of the following is the best choice? Token-Ring Ethernet CSMA/CA CSMA/CD ARCnet Token-Ring Ethernet CSMA/CA CSMA/CD ARCnet ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Ethernet networks can be cabled in a number of topologies, depending on what works best in each environment. As more nodes are added, the efficiency of Ethernet decreases. Select the best answer as to why Ethernet becomes less efficient as size increases. Cable terminators do not reflect the signal properly Cable terminators do not absorb the signal properly Network collisions occur Repeaters cannot increase the signal strength sufficiently "Line echo" occurs due to the impedance of the cable Cable terminators do not reflect the signal properly Cable terminators do not absorb the signal properly Network collisions occur Repeaters cannot increase the signal strength sufficiently "Line echo" occurs due to the impedance of the cable ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Phase shift keying (psk) method is used to modulate digital signals at 9600 bps using 16 levels. Find the line signaling speed (i.e., modulation rate) DHCP Management Console 9600 bands 2400 bands 1200 bands 4800 bands DHCP Management Console 9600 bands 2400 bands 1200 bands 4800 bands ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which of the following is a layer 2 protocol used to maintain a loop-free network? RIP STP VTP CDP RIP STP VTP CDP ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A characteristic of a multiprogramming system is: concurrent processing of two or more programs multiple CPUs simultaneous execution of program instructions from two applications None of these All listed here concurrent processing of two or more programs multiple CPUs simultaneous execution of program instructions from two applications None of these All listed here ANSWER DOWNLOAD EXAMIANS APP
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