fr
fr

23 interview questions on Linux Systemfor developers (2025)

Test your technical skills before an interview of Linux System with 23 corrected questions. Beginner, Intermediate or Expert level.

Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
23
To review
0
23 questions
Easy
7 votes1045 runs0 comment

List running processes.

DevOps
linux
processes
Kevin Lefevreat Sep 19, 2022
Hard
6 votes1071 runs1 comment

How to create a snapshot of a logical volume in Linux

DevOps
logical volume
snapshot
Kevin Lefevreat Nov 27, 2021
Easy
4 votes1055 runs0 comment

Change file mode bits.

DevOps
chmod
file
Kevin Lefevreat Nov 27, 2021
Hard
4 votes1034 runs0 comment

What are the parameters passed to the kernel at boot time?

DevOps
kernel
parameters
Kevin Lefevreat Nov 27, 2021
Hard
3 votes1026 runs0 comment

What does the `-p` option do in `passwd` command?

DevOps
linux
password
Kevin Lefevreat Mar 6, 2023
Medium
2 votes1082 runs0 comment
Hard
2 votes1047 runs0 comment
Hard
2 votes1016 runs0 comment

What is the default configuration for a Linux system?

DevOps
linux
active-active
Kevin Lefevreat Nov 27, 2021
Medium
2 votes378 runs0 comment
Hard
1 vote1078 runs0 comment

What is the output of the following command? echo $?

DevOps
exit status
command
Kevin Lefevreat Nov 27, 2021
Medium
1 vote1075 runs0 comment
Medium
1 vote1052 runs0 comment

How to check if a file exists in Linux

DevOps
linux
system
Kevin Lefevreat Nov 27, 2021
Easy
1 vote1039 runs0 comment

What is the PATH environment variable?

DevOps
directories
path
Kevin Lefevreat Nov 27, 2021
Hard
1 vote1035 runs0 comment
Hard
1 vote1024 runs0 comment

What is a cron job?

DevOps
crontab
batch
Kevin Lefevreat Nov 27, 2021
Hard
0 vote1061 runs0 comment

How to allow or deny access to a port in Linux

DevOps
linux
firewall
Kevin Lefevreat Dec 2, 2021
Hard
0 vote1042 runs0 comment
Hard
0 vote1036 runs0 comment