Question 1

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

Question 2

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 3

To optimize their Docker image for a Python-based web application, a developer decides to use a multi-stage build process. What is the primary reason for using multi-stage builds in this context?

Options :

A : To compile Python code into a binary format for faster execution

B : To separate the build environment from the runtime environment, reducing the final image size

C : To create separate containers for development, testing, and production environments

D : To install multiple versions of Python side by side for compatibility testing

Answer: B

Question 4

A company is expanding its services and plans to deploy dozens of microservices across multiple hosts. What is the primary benefit of using container orchestration in this scenario?

Options :

A : To simplify the management of individual container logs

B : To enable automatic scaling and load balancing of services

C : To decrease the overall cost of cloud hosting services

D : To ensure compliance with industry-specific security standards

Answer: B

Question 5

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

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