Networking Miscellaneous(Computer Aptitude > Networking ) Questions and answers for exam Preparation

Computer Aptitude > Networking

NETWORKING MISCELLANEOUS MCQs

Total Questions : 411 | Page 3 of 42 pages

Question 21. A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?

2 seconds
20 seconds
120 seconds
12 seconds
None of the above

Discuss Question

Answer: Option B. -> 20 seconds

Question 22. 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
None of the above

Discuss Question

Answer: Option A. -> Bandwidth alternatives

Question 23. A modem is connected in between a telephone line and a

network
computer
communication adapter
serial port
None of the above

Discuss Question

Answer: Option C. -> communication adapter

Question 24. 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

Discuss Question

Answer: Option D. -> characteristic of the hub architecture of ARC-net is directionalized transmission

Question 25. 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

Discuss Question

Answer: Option C. -> Ultra High Frequency : 300 MHz to 3000 MHz

Question 26. 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

Discuss Question

Answer: Option A. -> Satellite transponders use a higher frequency for reception of radiation from earth stations and lower frequency for transmission to earth stations.

Question 27. We can receive data either through our television aerial or down our telephone lines and display this data on our television screen. What is the general name given to this process?

Viewdata
Teletext
Telesoftware
Videotex
None of the above

Discuss Question

Answer: Option D. -> Videotex

Question 28. ASK, PSK, FSK, and QAM are examples of _____ encoding.

digital-to-digital
digital-to-analog
analog-to-analog
analog-to-digital
None of the above

Discuss Question

Answer: Option B. -> digital-to-analog

Question 29. The data-link layer, in reference to the OSI model, specifies

data link procedures that provide for the exchange of data via frames that can be sent and received
the interface between the X.25 network and packet mode device
the virtual circuit interface to packet-switched service
All of the above
None of the above

Discuss Question

Answer: Option A. -> data link procedures that provide for the exchange of data via frames that can be sent and received

Question 30. What function does a serial interface perform in data communication?