Discussion
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- Question
Which of the following communications modes support two-way traffic but in only one direction of a time?
Options- A. simplex
- B. half-duplex
- C. three-quarters duplex
- D. full-of the above
- E. None of the above
- Correct Answer
- half-duplex
- 1. A smart modem can dial, hang up and answer incoming calls automatically. Can you tell who provides the appropriate instruction to the modem for this purpose?
Options- A. Communications software
- B. Error detecting protocols
- C. Link access procedure (LAP)
- D. Telecommunications
- E. None of the above Discuss
- 2. Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer:
Options- A. Bandwidth alternatives
- B. Switching alternating
- C. Inter organizational networks
- D. Extranets Discuss
- 3. A medium access control technique for multiple access transmission media is
Options- A. Aloha
- B. Amplitude
- C. Angle modulation
- D. Attenuation
- E. None of the above Discuss
- 4. With an IP address of 201.142.23.12, what is your default subnet mask?
Options- A. 0.0.0.0
- B. 255.0.0.0
- C. 255.255.0.0
- D. 255.255.255.0
- E. None of the above Discuss
- 5. Who invented the modem?
Options- A. Wang Laboratories Ltd.
- B. AT & T Information Systems, USA
- C. Apple Computers Inc.
- D. Digital Equipment Corpn.
- E. None of the above Discuss
- 6. Which of the following digits are known as the terminal number of the Network User Address (NUA)?
Options- A. 5-7
- B. 1-4
- C. 8-12
- D. 13-14
- E. None of the above Discuss
- 7. ASK, PSK, FSK, and QAM are examples of _____ encoding.
Options- A. digital-to-digital
- B. digital-to-analog
- C. analog-to-analog
- D. analog-to-digital Discuss
- 8. Which transmission mode is used for data communication along telephone lines?
Options- A. Parallel
- B. Serial
- C. Synchronous
- D. Asynchronous
- E. None of the above Discuss
- 9. An internetworking protocol that provides virtual circuit service across multiple X.25 protocol, is
Options- A. X.75
- B. X.25
- C. X.400
- D. X.21
- E. None of the above Discuss
- 10. In communication satellite, multiple repeaters are known as
Options- A. detector
- B. modulator
- C. stations
- D. transponders
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: Communications software
Correct Answer: Bandwidth alternatives
Correct Answer: Aloha
Correct Answer: 255.255.255.0
Correct Answer: AT & T Information Systems, USA
Correct Answer: 8-12
Correct Answer: digital-to-analog
Correct Answer: Serial
Correct Answer: X.75
Correct Answer: transponders
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