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Latest Red Hat EX188 Exam Questions and Answers, 2025 Update | SPOTO

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Question #1
What is a key security benefit of using the USER instruction in a Containerfile?
A. It prevents the container from running as rootcorrect
B. It encrypts container data
C. It improves image build speed
D. It ensures image immutability
View answer
Correct Answer: A
Question #2
What is the function of the ENV instruction in a Containerfile?
A. To execute commands during the build
B. To set environment variablescorrect
C. To define the container's entry point
D. To expose ports
View answer
Correct Answer: B
Question #3
What is the effect of using the --rm option with Podman run?
A. It removes the container after it exitscorrect
B. It forcefully stops the container
C. It restarts the container automatically
D. It creates a read-only filesystem
View answer
Correct Answer: A
Question #4
What does the CMD instruction define in a Containerfile?
A. Default command executed when the container runscorrect
B. Base image used for building
C. Ports to expose
D. User to run the container
View answer
Correct Answer: A
Question #5
Which instruction is recommended for defining environment variables in a Containerfile?
A. ENVcorrect
B. VAR
C. EXPORT
D. CONFIG
View answer
Correct Answer: A
Question #6
Which instruction specifies default arguments for the container entry point?
A. CMDcorrect
B. ENTRYPOINT
C. ENV
D. ARG
View answer
Correct Answer: A
Question #7
Which instruction allows you to change the ownership of files during a build?
A. COPY --chowncorrect
B. ADD --chown
C. RUN --chown
D. WORKDIR --chown
View answer
Correct Answer: A
Question #8
When the human eye observes the world around it, the image of the object on the retina is inverted.
A. False
B. True
View answer
Correct Answer: B
Question #9
Why should ENTRYPOINT be preferred over CMD for executable containers?
A. It ensures the container always runs as intendedcorrect
B. It allows overriding the entry point easily
C. It supports multiple commands at runtime
D. It has no security implications
View answer
Correct Answer: A
Question #10
Which of the following instructions should be used to copy files while preserving permissions? (Select two)
A. ADDcorrect
B. COPYcorrect
C. RUN
D. WORKDIR
View answer
Correct Answer: AB
Question #11
How does exposing ports in a Containerfile affect container networking?
A. It allows the container to listen for traffic on specified portscorrect
B. It opens host system ports
C. It restricts access to internal services
D. It is mandatory for network connectivity
View answer
Correct Answer: A
Question #12
What is the default network mode when running a container with Podman?
A. Bridgecorrect
B. Host
C. None
D. NAT
View answer
Correct Answer: A
Question #13
Which instruction is used to run a command during image build and capture the result?
A. RUNcorrect
B. CMD
C. EXEC
D. ENTRYPOINT
View answer
Correct Answer: A
Question #14
What is the purpose of specifying a WORKDIR in a Containerfile?
A. To define the base image path
B. To set the current directory for subsequent instructionscorrect
C. To specify the container user
D. To configure environment variables
View answer
Correct Answer: B
Question #15
Both the Intel 310 and Intel 910 use the Da Vinci architecture.
A. False
B. True
View answer
Correct Answer: B

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