Skill track
Docker and Containers
Building images, what a layer costs, volumes versus bind mounts, container networking, compose, and reading a Dockerfile the way a reviewer does.
Who it is for: Anyone whose team ships in containers and who has been running the commands without being sure what they do. It comes up in almost every backend and platform screening round.
30% OFFUnlock all 10 remaining quizzes on this track at once.50 credits72save 22
Any 2 quizzes free, then 9 credits each.
Quizzes
10 quizzes, in order.
1
Container fundamentals
10 questions ~12 min
2
Container networking
10 questions ~12 min
3
Container troubleshooting
10 questions ~12 min
4
Containers
10 questions ~12 min
5
Docker Compose
10 questions ~12 min
6
Dockerfiles
10 questions ~12 min
7
Environment variables
10 questions ~12 min
8
Images
10 questions ~12 min
9
Registries
10 questions ~12 min
10
Volumes
10 questions ~12 min
What this track covers
Images and layersWriting a DockerfileBuild cacheVolumes and bind mountsContainer networkingPorts and exposureComposeEnvironment and secretsLogs and debugging a containerImage size and security