Tag: operating systems

Questions Related to operating systems

  1. restart the instance

  2. change parameter rdisp/btctime

  3. simulate

  4. close all the user sessions


Correct Option: C
  1. at least 2GB

  2. at least 3GB

  3. at least 1GB

  4. Two times of main Memory


Correct Option: A
  1. man

  2. pg

  3. cat

  4. head


Correct Option: A
Explanation:

To answer this question, the user needs to know what is meant by a filter command.

A filter command is a command that takes input from standard input, performs some operation on it, and then produces output to standard output.

Now, let's go through each option and explain whether it is a filter command or not:

A. man: This command is not a filter command. It is used to display the manual page of a given command.

B. pg: This command is a filter command. It is used to paginate the input that is received from standard input.

C. cat: This command is a filter command. It is used to concatenate files and display the output on standard output.

D. head: This command is a filter command. It is used to display the first few lines of the input that is received from standard input.

Therefore, the answer is:

The Answer is: A. man

  1. Display all the files under current directory

  2. displcay the pid of the last background job

  3. display the pid of the current background job

  4. display syntax error


Correct Option: A
  1. Synchronous interrupt

  2. Asynchronous interrupt

  3. Hardware interrupt

  4. Operating System interrupt


Correct Option: A
  1. Pre-Emptive Scheduling

  2. Non Pre-Emptive Scheduling

  3. Deadline Scheduling

  4. Fair-Share Sceduling


Correct Option: B
  1. Large number of processes

  2. Large number of free holes

  3. Large number of waiting processes

  4. None of the above


Correct Option: B
  1. accept interrupts from a specific channel

  2. reject all interrupts

  3. reject selected interrupts

  4. reject all interrupts from selected channels


Correct Option: A