Question 1

A Linux administrator is troubleshooting a Docker container that fails to communicate with external network resources. Which command should the administrator use to inspect the network configuration of the problematic container named ‘app_container’?

Options :

A : docker network inspect bridge

B : docker inspect app_container

C : docker container logs app_container

D : docker network connect bridge app_container

Answer: B

Question 2

A DevOps team is managing a fleet of servers across multiple data centers using a GitOps workflow. They want to ensure that any script executed for maintenance tasks is done so consistently and that the output from each server is captured for audit purposes. Which tool or approach would best fit this requirement within a GitOps framework?

Options :

A : Manual execution of scripts via SSH and manual logging of the output on a shared document

B : Use of a centralized configuration management tool like Ansible, with scripts and their execution policies stored in a Git repository and outputs logged to a centralized logging system

C : Sending scripts via email to data center administrators and asking them to run the scripts and reply with the output

D : Utilizing custom bash scripts that are manually copied to each server and executed, with outputs emailed back to the DevOps team

Answer: B

Question 3

You want to create a symbolic link named ‘latest_report’ that points to a file named ‘annual_report_2023.txt’ within the same directory. Which command should you use?

Options :

A : ln annual_report_2023.txt latest_report

B : ln -s annual_report_2023.txt latest_report

C : ln -h annual_report_2023.txt latest_report

D : link annual_report_2023.txt latest_report

Answer: B

Question 4

On a Debian-based system, you want to search for a package named ‘curl’ to see if it’s available for installation. Which command should you use?

Options :

A : apt search curl

B : dpkg -l | grep curl

C : apt-get find curl

D : yum search curl

Answer: A

Question 5

How would you display the differences in content between two configuration files, ‘config_old.txt’ and ‘config_new.txt’, highlighting only the lines that have been added or changed in ‘config_new.txt’?

Options :

A : diff config_old.txt config_new.txt

B : diff -u config_old.txt config_new.txt

C : comm -3 config_old.txt config_new.txt

D : diff -Naur config_old.txt config_new.txt

Answer: D

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