6. 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?
A. Interface
B. Modem
C. Attenuation
D. Teleprocessor
E. None of the above
7. What is the usual number of bits transmitted simultaneously in parallel data transmission used by microcomputers?
A. 16
B. 9
C. 8
D. 4
E. None of the above
8. The receive equalizer reduces delay distortions using a
A. tapped delay lines
B. gearshift
C. descrambler
D. difference engine
E. None of the above
9. Four routers have to be interconnected in a point-to-point network. Each pair of root us may connected by a high-speed line, a medium speed line or a low speed line. Find the total number of topologies.
A. 12
B. 81
C. 48
D. 729
10. A network consists of eight NT servers. You are planning to move servers to different segments of your network, what utility should be used at each server to determine which server generates the most traffic?
A. NBTSTAT
B. NETSTAT.EXE
C. Performance Monitor
D. Network Monitor
E. ARP.EXE
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