Operating System

41. Default lines shown by head command?
head command default कितनी lines दिखाता है?
(RPSC C.S. 2016 (PAPER-I))
A. 3
B. 5
C. 10
D. 100

Correct Answer: C

Explanation (EN): Default is 10 lines.

Explanation (HI): Default 10 lines होती हैं।

42. Output of tail -c +512 filename
tail -c +512 का output क्या है?
(RPSC C.S. 2016 (PAPER-I))
A. Last 512 bytes
B. Skip 511 bytes then print rest
C. Last 512 lines
D. Skip 511 lines

Correct Answer: B

Explanation (EN): It skips first 511 bytes and prints rest.

Explanation (HI): यह पहले 511 bytes छोड़कर बाकी print करता है।

43. Source code is available to view, modify and redistribute in-
Source code कब modify/redistribute किया जा सकता है?
(BPSC TRE 2.0 22.02.2024)
A. Open source
B. Licensed
C. Proprietary
D. More than one

Correct Answer: A

Explanation (EN): Open source allows modification and redistribution.

Explanation (HI): Open source में source code freely modify किया जा सकता है।

44. Large file blocks in Unix are allocated using
Unix में large file blocks कैसे allocate होते हैं?
(LT Grade C.S. 2018)
A. Contiguous
B. Linked
C. Indexed
D. Extended indexed

Correct Answer: D

Explanation (EN): Uses extended indexed allocation with indirect blocks.

Explanation (HI): Extended indexed allocation उपयोग होता है।

45. To change command prompt in Unix
Unix में command prompt बदलने का तरीका
(LT Grade C.S. 2018)
A. Grep
B. LS
C. PS1
D. PWD

Correct Answer: C

Explanation (EN): PS1 variable controls prompt.

Explanation (HI): PS1 variable prompt define करता है।

46. Which is Linux?
Linux क्या है?
(EMRS PGT C.S. 16.12.2024)
A. Open-source OS
B. Open-source app
C. Windows app
D. Proprietary OS

Correct Answer: A

Explanation (EN): Linux is open-source OS.

Explanation (HI): Linux एक open-source OS है।

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