Question 1

A cloud infrastructure team is planning to automate the provisioning and management of their AWS resources to enhance efficiency and consistency across environments. They want to adopt a GitOps approach that aligns with best practices for infrastructure as code (IaC). Which combination of tools and practices should they implement?

Options :

A : Manually create resources using the AWS Management Console and document configurations in a shared spreadsheet

B : Use AWS CloudFormation templates to define infrastructure, store these templates in a Git repository, and apply changes through automated CI/CD pipelines

C : Write bash scripts for resource provisioning, execute them locally on an administrator-s machine, and commit the script outputs to a Git repository

D : Employ AWS CLI commands in ad-hoc fashion for infrastructure changes, with periodic manual commits of the state to a Git repository

Answer: B

Question 2

You need to find all occurrences of the term ‘error’ in ‘application.log’ and redirect both the output and errors from this operation to a file named ‘errors_found.txt’. Which command should you use?

Options :

A : grep 'error' application.log > errors_found.txt

B :

grep 'error' application.log 2>&1 errors_found.txt

C : grep 'error' application.log &> errors_found.txt

D : grep 'error' application.log > errors_found.txt 2>&1

Answer: D

Question 3

To configure a static IP address of 192.168.1.50 on a network interface named ‘eth0’ on a Linux system using the NetworkManager command-line tool (nmcli), which command should you use?

Options :

A : nmcli con add con-name eth0 ifname eth0 type ethernet ip4 192.168.1.50/24

B : nmcli device modify eth0 ipv4.addresses 192.168.1.50/24

C : nmcli con modify eth0 ipv4.addresses 192.168.1.50/24 ipv4.method manual

D : ifconfig eth0 192.168.1.50 netmask 255.255.255.0 up

Answer: C

Question 4

A company is adopting GitOps practices for their cloud infrastructure management. They are deciding on a change management model that enables rapid deployment while ensuring that each change is reviewed and approved by a designated authority. Which model best fits these requirements?

Options :

A : Ad-hoc model, where changes are applied directly in production without formal reviews

B : Centralized model, where a central team is responsible for reviewing and applying all changes

C : Trunk-based development model, where developers commit changes directly to the main branch without review

D : Pull request (PR) model, where changes are proposed, reviewed, and approved through pull requests before being merged into the production environment

Answer: D

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