Tag: operating systems

Questions Related to operating systems

What is the difference between Hard Link and Soft Link?

technology operating systems

  1. Hard links share the same data blocks on the hard disk.Where as for soft link seperate file is created.

  2. Hard link: Associate two or more file names with the same inode.Where as soft Link is a small file pointing to another file.

  3. Both as same in case of implementation, only difference is in the size of new file created.

  4. Hard Link create a new seperate file and that is not related with old file.A soft link contains the path to the target file instead of a physical location on the hard disk.

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Correct Option: B

What is "dselect" in Linux Operating System?

technology operating systems

  1. It is a package manager for Debian Systems.

  2. It is a package manager for Red Hat Systems.

  3. Command to uninstall programs.

  4. Command to un-select any selection.

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Correct Option: A

What is "Xlib" in a LINUX System?

technology operating systems

  1. Base Windows system in LINUX.

  2. A low-level interface which communicates between base system,network and Higher level programs.

  3. A program which provides GUI to LINUX Systems.

  4. Its a replacement for Windows Manager.

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Correct Option: B

Command "SuperProbe" is used for...........

technology operating systems

  1. There is no such command in LINUX OS.

  2. Probe a module into kernel.

  3. To determine card's chipset Information.

  4. None of the Above.

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Correct Option: C

Each shared library have 2 files.They are?

technology operating systems

  1. "libraryname.a" and "libraryname.a.version"

  2. "libraryname.a" and "libraryname.so.version"

  3. "libraryname" and "libraryname.so.version"

  4. There exist only one file for one shared library.

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Correct Option: B

Which of the following is a text editor in LINUX OS?

technology operating systems

  1. ping

  2. lynk

  3. ed

  4. edi

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Correct Option: C

who | awk ‘{ print $1, $5 }’

technology operating systems

  1. Error : syntax used with awk is wrong.

  2. prints names of logged-in users and time of login.

  3. Display output of who with $1 and $5 at the end.

  4. None of the above.

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Correct Option: B

What following command perform? "at 12pm Jul 31 ls date "

technology operating systems

  1. Execute "ls" and "date" command at 12pm on 31st July.

  2. Execute "ls" and "date" command at 12pm on 31st July and mail output to owner of task.(User who had initiated that at command)

  3. Execute "ls" and "date" command at 12pm on 31st July and mail output to root.

  4. Execute "ls" and "date" command at 12pm on 31st July but no output.

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Correct Option: B

How to corrupt the file in UNIX

technology operating systems

  1. Change the inode number of the file

  2. Change the inodes count.

  3. Change the content of the file.

  4. change the file permission

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Correct Option: A

How to de-list the IP from spam website

technology operating systems

  1. Send the mail to spamwebsite owner

  2. Block 25 port in the firewall

  3. Change the port number of SMTP

  4. Clean the system with anti

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Correct Option: D