Tag: technology

Quizzes (307) Questions (36705)

Questions Related to technology

Multiple choice technology operating systems

You are executing the following commands in a shell $ cp ~/myfile.dat /media/mounted/ext/drive1/newmyfile.dat $ cd /media/mounted/ext/drive1 $ mv newmyfile.dat oldmyfile.dat and now you are asked to display the long listing of the file "newmyfile.dat". Which of the following will you use ?

  1. ls -lrt !cp:2

  2. ls -lrt !mv:1

  3. ls -lrt /media/mounted/ext/drive1/newmyfile.dat

  4. a and b will give "Command not found error" and c will work fine and all other options are incorrect.

  5. a,b and c will give correct results.
Reveal answer Fill a bubble to check yourself
E Correct answer
Full explanation
Multiple choice technology operating systems

You are done using your external memory disk (say-KINSTON Pen disk) in Linux and you want to unmount it. But you get an error message like "umount: /media/KINGSTON: device is busy". Which of the following you can use to UNMOUNT IT SAFELY.

  1. Find the process that is using the drive and kill it safely.

  2. option a is correct and the following needs to be done to implement it: fuser /media/KINGSTON;fuser -k /media/KINGSTON; umount /media/KINGSTON

  3. Option a is incorrect and unsafe and you need to hard boot to solve this problem.

  4. Use a force option on unmount to acheive this : umount -F /media/KINSGTON

  5. a and b are correct.
Reveal answer Fill a bubble to check yourself
E Correct answer
Full explanation
Multiple choice technology operating systems

You have 5 mp3 files in a directory and you are planning to rename the all .mp3 files to .ogg files. Will the following Shell script acheive your goal ? for i in ls *.mp3; do mv $i $i.ogg done. Will the above script rename correctly and how many number of files will be present in the directory after execution of the script ?

  1. Yes. 0 files will be present

  2. No

  3. Yes. 5 file or more will be present.

  4. Yes. Only 5 files will be present.

  5. All the above are incorrect.
Reveal answer Fill a bubble to check yourself
C Correct answer
Full explanation
Multiple choice technology operating systems

You have 5 mp3 files in a directory and you are planning to rename the all .mp3 files to .ogg files. Will the following Shell script acheive your goal ? for i in ls *.mp3; do mv $i $i.ogg done. Will the above script rename correctly and how many number of files will be present in the directory after execution of the script ?

  1. Yes. 0 files will be present

  2. No

  3. Yes. 5 file or more will be present.

  4. Yes. Only 5 files will be present.

  5. All the above are incorrect.
Reveal answer Fill a bubble to check yourself
C Correct answer