Containers · Docker interview questions

1. A.ENTRYPOINT sets the fixed executable while CMD provides default arguments that can be overridden
2. B.a service that stores and distributes Docker images such as Docker Hub
3. C.Docker's modern build engine offering parallelism, build secrets, and cache mounts
4. D.a read-only template containing the filesystem and metadata to run a container

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1. A.Bind mount
2. B.Volume
3. C.Image
4. D.Dockerfile

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1. A.Image — a running, isolated instance of an image with its own process namespace
2. B.Image — a cached, immutable filesystem change produced by each instruction in a Dockerfile
3. C.Image — a read-only template containing the filesystem and metadata to run a container
4. D.Image — a minimal base image containing only the app and runtime, no shell or package manager, reducing attack surface

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1. A.a minimal base image containing only the app and runtime, no shell or package manager, reducing attack surface
2. B.a running, isolated instance of an image with its own process namespace
3. C.a text file with instructions describing how to build a Docker image
4. D.a cached, immutable filesystem change produced by each instruction in a Dockerfile

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1. A.Multi-stage build
2. B.Distroless image
3. C.Container
4. D.ENTRYPOINT vs CMD

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1. A.Container — a running, isolated instance of an image with its own process namespace
2. B.Container — a cached, immutable filesystem change produced by each instruction in a Dockerfile
3. C.Container — a Dockerfile technique using multiple FROM stages to keep only build outputs in the final image
4. D.Container — a service that stores and distributes Docker images such as Docker Hub

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1. A.a cached, immutable filesystem change produced by each instruction in a Dockerfile
2. B.a text file with instructions describing how to build a Docker image
3. C.a minimal base image containing only the app and runtime, no shell or package manager, reducing attack surface
4. D.ENTRYPOINT sets the fixed executable while CMD provides default arguments that can be overridden

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1. A.Dockerfile
2. B.Registry
3. C.Multi-stage build
4. D.Image

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1. A.Dockerfile — a running, isolated instance of an image with its own process namespace
2. B.Dockerfile — a text file with instructions describing how to build a Docker image
3. C.Dockerfile — a minimal base image containing only the app and runtime, no shell or package manager, reducing attack surface
4. D.Dockerfile — a read-only template containing the filesystem and metadata to run a container

Answer + AI explanation with Pro

1. A.a running, isolated instance of an image with its own process namespace
2. B.Docker's modern build engine offering parallelism, build secrets, and cache mounts
3. C.a read-only template containing the filesystem and metadata to run a container
4. D.a cached, immutable filesystem change produced by each instruction in a Dockerfile

Answer + AI explanation with Pro

1. A.Image
2. B.Layer
3. C.Registry
4. D.BuildKit

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1. A.Layer — reuse of unchanged layers from prior builds to speed up image creation
2. B.Layer — a service that stores and distributes Docker images such as Docker Hub
3. C.Layer — a cached, immutable filesystem change produced by each instruction in a Dockerfile
4. D.Layer — a running, isolated instance of an image with its own process namespace

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1. A.a text file with instructions describing how to build a Docker image
2. B.a service that stores and distributes Docker images such as Docker Hub
3. C.a Docker-managed persistent storage mechanism that outlives a container
4. D.a Dockerfile technique using multiple FROM stages to keep only build outputs in the final image

Answer + AI explanation with Pro

1. A.Volume
2. B.Registry
3. C.Bind mount
4. D.BuildKit

Answer + AI explanation with Pro

1. A.Registry — a read-only template containing the filesystem and metadata to run a container
2. B.Registry — Docker's modern build engine offering parallelism, build secrets, and cache mounts
3. C.Registry — a service that stores and distributes Docker images such as Docker Hub
4. D.Registry — a cached, immutable filesystem change produced by each instruction in a Dockerfile

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1. A.a service that stores and distributes Docker images such as Docker Hub
2. B.mounting a host directory into a container so changes are shared with the host
3. C.a cached, immutable filesystem change produced by each instruction in a Dockerfile
4. D.a Docker-managed persistent storage mechanism that outlives a container

Answer + AI explanation with Pro

1. A.ENTRYPOINT vs CMD
2. B.Layer
3. C.Dockerfile
4. D.Volume

Answer + AI explanation with Pro

1. A.Volume — Docker's modern build engine offering parallelism, build secrets, and cache mounts
2. B.Volume — a Docker-managed persistent storage mechanism that outlives a container
3. C.Volume — a read-only template containing the filesystem and metadata to run a container
4. D.Volume — mounting a host directory into a container so changes are shared with the host

Answer + AI explanation with Pro

1. A.a minimal base image containing only the app and runtime, no shell or package manager, reducing attack surface
2. B.Docker's modern build engine offering parallelism, build secrets, and cache mounts
3. C.reuse of unchanged layers from prior builds to speed up image creation
4. D.a Dockerfile technique using multiple FROM stages to keep only build outputs in the final image

Answer + AI explanation with Pro

1. A.Multi-stage build
2. B.Bind mount
3. C.Registry
4. D.Dockerfile

Answer + AI explanation with Pro

1. A.Multi-stage build — a Dockerfile technique using multiple FROM stages to keep only build outputs in the final image
2. B.Multi-stage build — a Docker-managed persistent storage mechanism that outlives a container
3. C.Multi-stage build — a minimal base image containing only the app and runtime, no shell or package manager, reducing attack surface
4. D.Multi-stage build — a service that stores and distributes Docker images such as Docker Hub

Answer + AI explanation with Pro

1. A.reuse of unchanged layers from prior builds to speed up image creation
2. B.mounting a host directory into a container so changes are shared with the host
3. C.a Docker-managed persistent storage mechanism that outlives a container
4. D.a Dockerfile technique using multiple FROM stages to keep only build outputs in the final image

Answer + AI explanation with Pro

1. A.Build cache
2. B.Distroless image
3. C.Bind mount
4. D.Registry

Answer + AI explanation with Pro

1. A.Bind mount — a running, isolated instance of an image with its own process namespace
2. B.Bind mount — mounting a host directory into a container so changes are shared with the host
3. C.Bind mount — reuse of unchanged layers from prior builds to speed up image creation
4. D.Bind mount — a Dockerfile technique using multiple FROM stages to keep only build outputs in the final image

Answer + AI explanation with Pro

1. A.a minimal base image containing only the app and runtime, no shell or package manager, reducing attack surface
2. B.ENTRYPOINT sets the fixed executable while CMD provides default arguments that can be overridden
3. C.mounting a host directory into a container so changes are shared with the host
4. D.Docker's modern build engine offering parallelism, build secrets, and cache mounts

Answer + AI explanation with Pro

1. A.Volume
2. B.Layer
3. C.Distroless image
4. D.ENTRYPOINT vs CMD

Answer + AI explanation with Pro

1. A.ENTRYPOINT vs CMD — a cached, immutable filesystem change produced by each instruction in a Dockerfile
2. B.ENTRYPOINT vs CMD — a read-only template containing the filesystem and metadata to run a container
3. C.ENTRYPOINT vs CMD — ENTRYPOINT sets the fixed executable while CMD provides default arguments that can be overridden
4. D.ENTRYPOINT vs CMD — a Dockerfile technique using multiple FROM stages to keep only build outputs in the final image

Answer + AI explanation with Pro

1. A.a running, isolated instance of an image with its own process namespace
2. B.a service that stores and distributes Docker images such as Docker Hub
3. C.a read-only template containing the filesystem and metadata to run a container
4. D.reuse of unchanged layers from prior builds to speed up image creation

Answer + AI explanation with Pro

1. A.Container
2. B.Distroless image
3. C.Build cache
4. D.Volume

Answer + AI explanation with Pro

1. A.Build cache — Docker's modern build engine offering parallelism, build secrets, and cache mounts
2. B.Build cache — a Docker-managed persistent storage mechanism that outlives a container
3. C.Build cache — a service that stores and distributes Docker images such as Docker Hub
4. D.Build cache — reuse of unchanged layers from prior builds to speed up image creation

Answer + AI explanation with Pro