EX188 Container Image Building Practice Question
Which Containerfile instruction sets the working directory for any subsequent RUN, CMD, ENTRYPOINT, COPY, and ADD instructions?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
WORKDIR
The WORKDIR instruction sets the working directory for any instructions that follow it in the Containerfile.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
PATH
Why it's wrong here
PATH is not a valid Containerfile instruction for this purpose.
- ✗
ENV
Why it's wrong here
ENV sets environment variables.
- ✓
WORKDIR
Why this is correct
WORKDIR is the correct instruction to change directories.
- ✗
RUN
Why it's wrong here
RUN executes commands in a new layer.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Red Hat exam blueprint
This EX188 practice question is part of Courseiva's free Red Hat certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the EX188 exam.