Exercise: Networking

Questions for: Networking

The synchronous modems are more costly than the asynchronous modems because
A:
they produce large volume of data
B:
they contain clock recovery circuits
C:
they transmit the data with stop and start bits.
D:
they operate with a larger bandwidth
Answer: B
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Which of the following device is used to connect two systems, especially if the systems use different protocols?
A:
hub
B:
bridge
C:
gateway
D:
repeater
Answer: C
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Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?
A:
FTP
B:
SNMP
C:
SMTP
D:
RPC
Answer: C
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When you ping the loopback address, a packet is sent where?
A:
On the network
B:
Down through the layers of the IP architecture and then up the layers again
C:
Across the wire
D:
through the loopback dongle
Answer: B
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Satellite-Switched Time-Division Multiple Access (SS/TDMA) is
A:
the method of determining which device has access to the transmission medium at any time.
B:
a medium access control technique for multiple access transmission media
C:
a form of TDMA in which circuit switching is used to dynamically change the channel assignments
D:
All of the above
Answer: C
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