305-300 Container Virtualization Practice Question
You are running a Docker container and need to map port 8080 on the host to port 80 in the container. Which command argument should you use?
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
✓
-p 8080:80
The -p flag (or --publish) defines port mapping.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
-p 80:8080
Why it's wrong here
This maps host 80 to container 8080.
- ✓
-p 8080:80
Why this is correct
Correct mapping format.
- ✗
--port 8080:80
Why it's wrong here
The flag is -p.
- ✗
--map 8080:80
Why it's wrong here
Invalid argument.
About these practice questions
This 305-300 question is part of Courseiva's 194-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam 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 305-300 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 305-300 exam.