Discussion
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- Question
Which multiplexing technique shifts each signal to a different carrier frequency?
Options- A. FDM
- B. synchronous TDM
- C. asynchronous TDM
- D. All of the above
- Correct Answer
- FDM
- 1. Related fields in a data base are grouped to form
Options- A. data file
- B. data record
- C. menu
- D. bank
- E. None of the above Discuss
- 2. What can he used to set up a firewall on a Linux system?
Options- A. netstat
- B. route
- C. trace
- D. ipchains
- E. None of the above Discuss
- 3. In a pure inductor:
Options- A. ac current leads the voltage by 90 degree
- B. ac current and voltage are exactly in phase
- C. ac current lags the voltage by 90 degree
- D. ac current is converted to dc voltage
- E. None of the above Discuss
- 4. Which two commands enable you to move between directories?
Options- A. CD
- B. CHDIR
- C. MOVE
- D. MOVE DIR
- E. None of the above Discuss
- 5. Which of the following is not a transmission medium?
Options- A. telephone lines
- B. coaxial cable
- C. modem
- D. microwave systems
- E. satellite systems Discuss
- 6. The hexadecimal digits are 0 to 9 and A to _____
Options- A. E
- B. F
- C. G
- D. D
- E. None of the above Discuss
- 7. The UNIX file system stores a data in physical blocks of
Options- A. 1024 bytes
- B. 2048 bytes
- C. 512 bytes
- D. 256 bytes
- E. None of the above Discuss
- 8. "User friendly" computers have ensured that
Options- A. management requires no system analysis and design.
- B. programmers are no longer needed
- C. structured programming is not needed
- D. All of the above
- E. None of the above Discuss
- 9. What is the main purpose of a data link content monitor?
Options- A. to detect problems in protocols
- B. to determine the type of transmission used in a data link
- C. to determine the type of switching used in a data link.
- D. to determine the flow of data Discuss
- 10. What is the highest binary number that can be referred to on a three position jumper block?
Options- A. 4
- B. 6
- C. F
- D. 1
- E. None of the above Discuss
More questions
Correct Answer: data record
Correct Answer: ipchains
Correct Answer: ac current lags the voltage by 90 degree
Correct Answer: CD
Correct Answer: modem
Correct Answer: F
Correct Answer: 512 bytes
Correct Answer: None of the above
Correct Answer: to detect problems in protocols
Correct Answer: 1
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