DSSSB TGT / PGT · Computer Science

Operating Systems Previous Year Questions (page 4)

154 Operating Systems (Computer Science) questions asked in DSSSB TGT / PGT previous year papers, each with the correct answer and explanation. Read them free on UTpaper, or attempt the full papers as timed online tests.

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Q151DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
The ______ interpolation method is used in probability theory and statistics, and the Gaussian process is one example.
  1. Alinear
  2. Bpolynomial
  3. Cspline
  4. Dnonlinear
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Correct answer: (D) nonlinear

Explanation

Gaussian process regression (kriging) is a non-linear interpolation method from probability and statistics. It treats the unknown function as a random process and predicts values between data points.

Q152DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
The process of verifying a user's identity is called:
  1. Aintegrity
  2. Bauthentication
  3. Cvalidation
  4. Dconfidentiality
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Correct answer: (B) authentication

Explanation

Authentication is the process of verifying a user's claimed identity, for example with passwords, OTPs or biometrics. Integrity and confidentiality are about protecting the data itself.

Q153DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
Which command is used to remove a directory in Linux?
  1. ARm
  2. BDelete
  3. CErase
  4. DRm, Delete and Erase
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Correct answer: (A) Rm

Explanation

In Linux, directories are removed with rm -r (recursive), or with rmdir for empty ones. 'Delete' and 'Erase' are not Linux commands, so rm is the answer.

Q154DSSSB TGT Computer Science, 25 Jun 2023, Shift 2 (12:30 PM)
What is an endpoint of an inter-process communication?
  1. ATunnel
  2. BPut
  3. CSocket
  4. DPipe
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Correct answer: (C) Socket

Explanation

A socket is one endpoint of a two-way inter-process communication link, identified by an IP address and port number. Two processes communicate through a pair of sockets.

How to use these DSSSB TGT / PGT Computer Science questions

Every question here was asked in a real DSSSB TGT / PGT paper; the paper and shift are shown on the card, and the number opens the question on its own page. Try each one before tapping Show answer, then attempt the full DSSSB TGT / PGT papers as timed tests to check your speed under exam conditions.

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