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- Question
The physical layer of a network
Options- A. constructs packets of data and sends them across the network
- B. controls error detection and correction
- C. defines the electrical characteristics of signals passed between the computer and communication devices
- D. All of the above
- E. None of the above
- Correct Answer
- defines the electrical characteristics of signals passed between the computer and communication devices
- 1. Which of the following command can you execute to count the number of lines in a file?
Options- A. lc
- B. wc - l
- C. cl
- D. count
- E. None of the above Discuss
- 2. What shell's wild-card is used to match any number of characters including none?
Options- A. *
- B. ?
- C. [!ijk]
- D. [ijk]
- E. None of the above Discuss
- 3. What X-based tool is available for configuring the X Window system?
Options- A. XConfigurator
- B. XF86Setup
- C. xf86config
- D. All of the above
- E. None of the above Discuss
- 4. How many primary partitions can exist on one drive?
Options- A. 16
- B. 4
- C. 2
- D. 1
- E. None of the above Discuss
- 5. What command is used with vi editor to delete a single character?
Options- A. x
- B. y
- C. a
- D. z
- E. None of the above Discuss
- 6. What command is used with vi editor to save file and remain in the editing mode?
Options- A. x
- B. q!
- C. :w
- D. :q
- E. None of the above Discuss
- 7. Which of the following command is used to see the services running in NFS server?
Options- A. rpcinfo
- B. serverinfo
- C. NFSinfo
- D. infserv
- E. None of the above Discuss
- 8. What port does squid listen, by default?
Options- A. 4322
- B. 2314
- C. 7334
- D. 3128
- E. None of the above Discuss
- 9. ICMP (Internet Control Message Protocol) is
Options- A. a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address
- B. a TCP/IP high level protocol for transferring files from one machine to another
- C. a protocol used to monitor computers
- D. a protocol that handles error and control messages
- E. None of the above Discuss
- 10. If you get both local and remote echoes, every character you type will appear on the screen
Options- A. once
- B. twice
- C. three times
- D. never
- E. None of the above Discuss
Linux problems
Search Results
Correct Answer: wc - l
Correct Answer: *
Correct Answer: XF86Setup
Correct Answer: 4
Correct Answer: x
Correct Answer: :w
Correct Answer: rpcinfo
Correct Answer: 3128
Correct Answer: a protocol that handles error and control messages
Correct Answer: twice
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