Docker Certified Associate Certification Training Course - Dockerfile Directives
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of the 'FROM' directive in a Dockerfile?
To specify the base image for the Dockerfile
To add metadata to the Docker image
To execute commands during image build
To set the default command for the container
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which directive is used to add metadata such as the maintainer's name to a Docker image?
FROM
CMD
LABEL
RUN
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main difference between the 'RUN' and 'CMD' directives?
RUN sets environment variables, CMD copies files
RUN executes commands during build, CMD sets default command for containers
RUN is for entry points, CMD is for volumes
RUN is used for metadata, CMD is for base images
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the 'ENTRYPOINT' directive differ from the 'CMD' directive?
ENTRYPOINT cannot be overridden, CMD can be
ENTRYPOINT is for metadata, CMD is for commands
ENTRYPOINT sets environment variables, CMD sets volumes
ENTRYPOINT is for copying files, CMD is for adding files
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which directive is used to set environment variables in a Dockerfile?
ARG
ENV
WORKDIR
USER
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the 'ARG' directive in a Dockerfile?
To expose ports for communication
To copy files from a URL
To set build-time variables
To specify the base image
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which directive is used to specify the working directory inside a Docker container?
ADD
COPY
USER
WORKDIR
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