Question 1

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 2

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 3

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 4

When transitioning to a GitOps workflow for a cloud-native application, a DevOps team debates how best to manage configuration changes to their Kubernetes clusters. Which change management model should they employ to ensure configurations are consistently applied and easily auditable in alignment with GitOps practices?

Options :

A : Manual Intervention Model, requiring operations team members to apply changes directly using kubectl commands

B : Infrastructure as Code (IaC) Model, storing configuration files in Git repositories and applying changes through automated pipelines

C : Scheduled Updates Model, applying changes at fixed intervals regardless of the state of the repository

D : Centralized Command Center Model, using a single dashboard for manual updates by authorized personnel

Answer: B

Question 5

An administrator notices that a critical application service isn’t responding as expected on a Linux system. To diagnose the issue, which command should be used to display the current status of a service named ‘app_service’?

Options :

A : systemctl status app_service

B : ps aux | grep app_service

C : top -c | grep app_service

D : service app_service status

Answer: A