Tag: programming languages

Questions Related to programming languages

How to mount a file system temporarily?
technology programming languages

  1. mount -t

  2. mount -R

  3. mount

  4. mount -Rt

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Correct Option: A

How to remove a queued file from the printer queue?
technology programming languages

  1. lpqrm

  2. lprm

  3. jobs -r

  4. lpc -rm

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Correct Option: B

/etc/fstab cannot be altered when the system is running runlevel 6
technology programming languages

  1. True

  2. False

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Correct Option: A

fork() and exec() are essentially doing the same job
technology programming languages

  1. True

  2. False

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Correct Option: B

It is possible to process return value of system()

technology programming languages

  1. True

  2. False

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Correct Option: A

To execute system() one should have root privilege

technology programming languages

  1. True

  2. False

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Correct Option: B

lpc command is used to
technology programming languages

  1. Add printer and queues

  2. Add modem & flash drive

  3. Add printer alone

  4. Invalid command

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Correct Option: A

What is the difference between select() & poll()?
technology programming languages

  1. select() and poll() have no differences

  2. poll() is event driven while select() is not

  3. select() is event driven while poll() is not

  4. None

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Correct Option: B

What is /proc/kcore process?
technology programming languages

  1. The process file name of init

  2. The proc file name of RAM

  3. Invalid file

  4. The core dump file

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Correct Option: B

Error in loading shared libraries: lib xxx..so. x: cannot open shared object file: No such file or directory
technology programming languages

  1. Resolve by update PATH variable

  2. Resolve by setting SHELLPATH variable

  3. Resolve by updating LD_LIBRARY_PATH

  4. Resolve by setting LIBRARY_PATH variable

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Correct Option: C