Teach Cloud - Cloud, DevOps, and Python Backend Development Blog

❓ Quiz Question

Aug 30, 2026

Quiz: What is the purpose of a `.dockerignore` file?

A .dockerignore file speeds up build context transfer and prevents sensitive local files from leaking into image layers.

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❓ Quiz Question

Aug 30, 2026

Docker Content Trust uses digital signatures to verify that image tags originate from trusted publishers.

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❓ Quiz Question

Aug 30, 2026

Volumes are managed entirely by Docker runtime; Bind Mounts mount arbitrary host file paths into containers.

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❓ Quiz Question

Aug 30, 2026

A Docker Image is a immutable layered snapshot; a Container is an active runtime instance executing that image.

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❓ Quiz Question

Aug 30, 2026

The -d (detached) flag runs compose containers in background execution mode.

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❓ Quiz Question

Aug 30, 2026

Docker enforces container resource constraints using Linux cgroups configured via CLI flags.

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❓ Quiz Question

Aug 30, 2026

docker system prune frees disk space by removing unused container data resources.

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❓ Quiz Question

Aug 30, 2026

… build phase, whereas ENV variables persist in runtime containers.

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