Tag: operating systems

Questions Related to operating systems

"echo" is an internal command
technology operating systems

  1. True

  2. False

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Correct Option: A

What is the output of $bc 9/5

technology operating systems

  1. 1

  2. 1.8

  3. 1.80

  4. 2

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Correct Option: A

What is the command used to find out the time taken to perform an operation.
technology operating systems

  1. cputime

  2. time

  3. cmdusage

  4. timer

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Correct Option: B

How will you calculate CPU time used to perform an action
technology operating systems

  1. System time + Real Time

  2. Time + Real Time

  3. User Time + Real Time

  4. User Time + System Time

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Correct Option: D

Unix files has end of file mark

technology operating systems

  1. True

  2. False

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Correct Option: B

To get a recursive list what option is used with "ls" command.

technology operating systems

  1. -R

  2. -r

  3. -a

  4. -rs

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Correct Option: A

What command tells you the type of file beyond the normal 3 categories.
technology operating systems

  1. type

  2. file

  3. filetype

  4. ls

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Correct Option: B

What is the size of the file /dev/null

technology operating systems

  1. 100 Bytes

  2. 200 Bytes

  3. 0 Bytes

  4. Unlimited

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Correct Option: C

which file need to be edited with nameserver ip to configure DNS client?
technology operating systems

  1. /etc/hostname

  2. /etc/resolv.conf

  3. /etc/sysconfig/network

  4. /etc/named.conf

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Correct Option: B

What is the command to update configuration changes on apache server without restarting the service?
technology operating systems

  1. /usr/sbin/apachectl restart

  2. /usr/sbin/apachectl reload

  3. /usr/sbin/apachectl configtest

  4. /usr/sbin/apachectl full-server-status

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Correct Option: B