Docker and GitLab CI/CD Quiz

What is the best way to ensure a job runs in an environment with Node.js and npm pre-installed?

• Install Node.js manually inside the Runner

• Use the official Node.js Docker image

• Enable Auto DevOps in GitLab

• Use the alpine image

Where does GitLab pull the Docker image from by default if no registry is specified?

• GitHub Container Registry

• GitLab Container Registry

• Docker Hub (hub.docker.com)

• GitLab's internal registry

• A local repository

Which of the following is a key reason to use Docker instead of installing dependencies manually on the GitLab Runner?

• It prevents dependency conflicts between different projects

• Docker allows for multiple programmin languages in a sinle project

• It makes the pipeline run faster by defult

• Docker is required for GitLab CI/CD to work

How can you find the correct Docker image for a programmin language or tool?

• Search for open-source community images on Docker Hub

• Use any image that has been recently updated

• Look for images with the most downloads, regardless of source

• Check the official documentation for the tool or framework

What is a "tag" in the context of Docker images (e.g., node:22)?

• A label that assigns a unique identifier to a container instance

• A branch name in GitLab that helps pipelines run in the correct environment

• A version identifier used to specify which version/variant of an image to pull

• A Git commit reference that determines which image version to use

Why might you choose a node:22-alpine image over node:22?

• Alpine images are faster and include more tools by default

• Alpine images are smaller and download faster in CI/CD pipelines

• Alpine images have better compatibility with GitLab

• Alpine images automatically install npm

What is a potential downside of using node:22-alpine instead of node:22?

• The Alpine image might lack certain libraries or tools (Git, curl, etc.)

• The Alpine image does not support GitLab CI/CD pipelines

• The Alpine image automatically installs extra dependencies, makint it larger

• The Alpine image does not support Node.js

Which Docker image is being used?

• green-3

• amr64v8/ubuntu:latest

• ubuntu:latest

• alpine:latest