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- Question
A 8-Mbps token ring has a token holding timer value of 10 msec. What is the longest frame (assume header bits are negligible) that can be sent on this ring?
Options- A. 8000 B frame
- B. 80,000 B frame
- C. 8 x 105 bit frame
- D. 10,000 B frame
- Correct Answer
- 10,000 B frame
ExplanationAt 8 Mbps, a station can transmit 80,000 bits or 10,000 bytes in 10 msec. This is an upper bound on frame length. From this amount, some overhead must be subtracted, giving a slightly lower limit for the data portion. Therefore, 10,000 B frame is the correct answer. - 1. The research and development department at your office has been experimenting with different technologies to help improve the performance of the network. One group has been examining the use of a broadband network versus a based band network. Select the correct statement about broadband and baseband.
Options- A. Broadband networks carry several channels on a single cable, whereas in a baseband network several cables carry one channel
- B. Baseband networks carry a single channel on a single cable, whereas broadband networks carry several channels on a single cable
- C. Baseband refers to local area networks, and broadband refers to wide area networks.
- D. Baseband operates at a standard bit rate, whereas broadband may operate at different rates as needed
- E. Broadband and baseband refer to the different frequencies at which infrared operates then transmitting signals in certain conditions Discuss
- 2. When the computer provides the manager with a multiple choice of possible answers, the prompting technique is
Options- A. question and answer
- B. form filling
- C. open-ended question
- D. menu selection
- E. None of the above Discuss
- 3. A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as
Options- A. Gateways
- B. mail gateway
- C. bridges
- D. User Agent
- E. None of the above Discuss
- 4. An example of an analog communication method is
Options- A. laser beam
- B. microwave
- C. voice grade telephone line
- D. All of the above
- E. None of the above Discuss
- 5. Transmission of computerised data from one location to another is called
Options- A. data transfer
- B. data flow
- C. data communication
- D. data management
- E. None of the above Discuss
- 6. Compared to analog signals, digital signals
Options- A. allow faster transmission
- B. are more accurate
- C. both (a) and (b)
- D. All of the above
- E. None of the above Discuss
- 7. Sending a file from your personal computer's primary memory or disk to another computer is called
Options- A. uploading
- B. downloading
- C. logging on
- D. hang on
- E. None of the above Discuss
- 8. Modulation is the process of
Options- A. converting analog signals to digital signals
- B. converting digital signals to analog signals
- C. Multiplexing various signals into high speed line signals
- D. performing data encryption. Discuss
- 9. Which address is the loopback address?
Options- A. 0.0.0.1
- B. 127.0.0.0
- C. 127.0.0.1
- D. 255.255.255.255
- E. None of the above Discuss
- 10. Which of the following refers to the terms "residual error rate"?
Options- A. the number of bit errors per twenty four hours of continuous operation on an asynchronous line
- B. The probability that one or more errors will be undetected when an error detection scheme is used
- C. the probability that one or more errors will be detected when an error detection mechanism is used
- D. signal to noise ratio divided by the ratio of energy per bit to noise per hertz
- E. None of the above Discuss
Networking problems
Search Results
Correct Answer: Baseband networks carry a single channel on a single cable, whereas broadband networks carry several channels on a single cable
Correct Answer: menu selection
Correct Answer: mail gateway
Correct Answer: All of the above
Correct Answer: data communication
Correct Answer: both (a) and (b)
Correct Answer: uploading
Correct Answer: converting digital signals to analog signals
Correct Answer: 127.0.0.1
Correct Answer: The probability that one or more errors will be undetected when an error detection scheme is used
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