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Computer Science - Networking

Exercise : Networking - Section 9
1.
Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer:
Bandwidth alternatives
Switching alternating
Inter organizational networks
Extranets
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Which of the following statements is correct?
characteristic of the hub architecture of ARC-net is alternative routing.
characteristic of LAN is unlimited expansion
characteristic of LAN is low cost access for low bandwidth channels
characteristic of the hub architecture of ARC-net is directionalized transmission
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
A modem is connected in between a telephone line and a
network
computer
communication adapter
serial port
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
What frequency range is used for TV transmission and low power microwave applications?
Very Low Frequency : 3 kHz to 30 kHz
Medium Frequency : 300 kHz to 3 MHz
Ultra High Frequency : 300 MHz to 3000 MHz
Super High Frequency : 3000 MHz to 30000 MHz
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
Which of the following statement is correct?
Satellite transponders use a higher frequency for reception of radiation from earth stations and lower frequency for transmission to earth stations.
Satellite transponders contain a device that echos the radiation without change from one point on earth to another
Satellite transponder contain devices that transform the message sent from one location on earth to a different code for transmission to another location
satellite transponders us lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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