Discussion
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- Question
What command is used to assign only read permission to all three categories of the file'letter'?
Options- A. chmod u + r, g + r, o - x letter
- B. chmod ugo = r letter
- C. chmod a - rw letter
- D. chmod go + r letter
- E. None of the above
- Correct Answer
- chmod ugo = r letter
- 1. Which option will be used with touch command to change the access time?
Options- A. -a
- B. -b
- C. -t
- D. -h
- E. None of the above Discuss
- 2. Routers are often used to implement FIREWALLS
Options- A. True
- B. False Discuss
- 3. What is the i/o address for com2?
Options- A. 2vb
- B. 2f8
- C. 8f8
- D. 330 Discuss
- 4. "Parity" errors usually indicate bad memory.
Options- A. True
- B. False Discuss
- 5. On the 16-bit ISA bus, IRQ2 is elevated to which higher level interrupt?
Options- A. 9
- B. 11
- C. 13
- D. 15
- E. None of the above Discuss
- 6. How many DMA channels are there in an AT class PC?
Options- A. 3
- B. 4
- C. 7
- D. 8
- E. None of the above Discuss
- 7. _____ has become the most widely used bipolar family.
Options- A. DTL
- B. TTL
- C. ECL
- D. MOS
- E. None of the above Discuss
- 8. How many bytes are there in 1011 1001 0110 1110 numbers?
Options- A. 1
- B. 2
- C. 4
- D. 8
- E. None of the above Discuss
- 9. What switch would you use to view Smartdrive statistics?
Options- A. /x
- B. /e:
- C. /s
- D. /o:n
- E. None of the above Discuss
- 10. Which of the following command lists the last 10 lines of a file?
Options- A. grep
- B. tail
- C. head
- D. cat
- E. None of the above Discuss
More questions
Correct Answer: -a
Correct Answer: True
Correct Answer: 2f8
Correct Answer: True
Correct Answer: 9
Correct Answer: 8
Correct Answer: TTL
Correct Answer: 2
Correct Answer: /s
Correct Answer: tail
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