A developer runs docker build -t myapp:latest . in a directory that contains a Dockerfile and a large 'node_modules' directory. The build is slow because the entire directory is sent to the Docker daemon as build context. Which action would most effectively speed up the build?

Use the --no-cache flag to avoid caching issues.

Create a .dockerignore file that excludes node_modules from the build context.

Run docker build with the --squash flag to reduce image size.

Move the Dockerfile to a subdirectory and run docker build from there.

A public registry for storing and sharing Docker images

A command-line interface for Docker

A network bridge for containers

A tool for building Docker images

Juniper NetworksCertified Associate, Cloud

Domain 4Objective 8

Creating Containers Using Docker JN0-214 Practice Questions (Page 4)

Part of the Cloud Virtualization domain, which makes up ~26% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–16 in this domain), expect 1–2 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

11concepts

Questions 16–20

16foundation · easy
Which component in Docker's architecture stores and distributes container images so they can be pulled and pushed?
Select an answer first
17foundation · easy
Which command is used to create a Docker image from a Dockerfile?
Select an answer first
18application · medium
A developer runs docker build -t myapp:latest . in a directory that contains a Dockerfile and a large 'node_modules' directory. The build is slow because the entire directory is sent to the Docker daemon as build context. Which action would most effectively speed up the build?
Select an answer first
19foundation · easy
Which Dockerfile instruction defines the command that runs when a container is started from the image?
Select an answer first
20foundation · easy
What is Docker Hub?
Select an answer first

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Creating Containers Using Docker JN0-214 Practice Questions (Page 4)

Questions 16–20

Which component in Docker's architecture stores and distributes container images so they can be pulled and pushed?

Which command is used to create a Docker image from a Dockerfile?

A developer runs docker build -t myapp:latest . in a directory that contains a Dockerfile and a large 'node_modules' directory. The build is slow because the entire directory is sent to the Docker daemon as build context. Which action would most effectively speed up the build?

Which Dockerfile instruction defines the command that runs when a container is started from the image?

What is Docker Hub?

Keep studying — Cloud Virtualization