Exercise: Networking

Questions for: Networking

Data are sent over pin _____ of the EIA-232 interface.
A:
2
B:
3
C:
4
D:
All of the above
Answer: A
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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?
A:
8000 B frame
B:
80,000 B frame
C:
8 x 105 bit frame
D:
10,000 B frame
Answer: D
At 8 Mbps, a station can transmit 80,000 bits or 10,000 bytes in 10 msec. This is an upper bound on frame length. From this amount, some overhead must be subtracted, giving a slightly lower limit for the data portion. Therefore, 10,000 B frame is the correct answer.
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Which of the following is a voiceband channel?
A:
Telephone line
B:
Telegraph line
C:
Coaxial cable
D:
Microwave systems
Answer: A
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HMP (Host Monitoring Protocol) is:
A:
a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
B:
a TCP/IP high level protocol for transferring files from one machine to another.
C:
a protocol used to monitor computers
D:
a protocol that handles error and control messages
Answer: C
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The communication mode that supports two-way traffic but only one direction at a time is
A:
simplex
B:
duplex
C:
half duplex
D:
multiplex
Answer: C
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