Exercise: Networking

Questions for: Networking

A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?
A:
2 seconds
B:
20 seconds
C:
120 seconds
D:
12 seconds
Answer: B
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Which of the following is a wrong example of network layer:
A:
Internet Protocol (IP) ARPANET
B:
X. 25 Packet Level Protocol (PLP) - ISO
C:
Source routing and Domain naming - Usenet
D:
X.25 level 2 - ISO
Answer: D
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Which of the following is an important characteristic of LAN?
A:
application independent interfaces
B:
unlimited expansion
C:
low cost access for low bandwidth channels
D:
parallel transmission
Answer: A
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The channel in the data communication model can be
A:
postal mail service
B:
telephone lines
C:
radio signals
D:
All of the above
Answer: D
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In OSI model, which of the following layer transforms information from machine format into that understandable by user
A:
application
B:
presentation
C:
session
D:
physical
Answer: B
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