010-160 The Power OF The Command Line Practice Question
You need to set an environment variable named 'MYVAR' to 'hello' so that it is available to child processes. Which command is correct?
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
✓
export MYVAR=hello
The export command is required to make an environment variable available to child shells.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
set MYVAR=hello
Why it's wrong here
set is used for shell options, not defining exported variables.
- ✗
MYVAR=hello
Why it's wrong here
This only sets a local shell variable, not an environment variable.
- ✗
env MYVAR=hello
Why it's wrong here
env runs a command with a modified environment, it doesn't set it for the current shell.
- ✓
export MYVAR=hello
Why this is correct
export exports the variable to the environment.
About these practice questions
Courseiva writes every 010-160 question from scratch — 190 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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 LPI exam blueprint
This 010-160 practice question is part of Courseiva's free LPI 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 010-160 exam.