305-300 Container Virtualization Practice Question
You need to run a container that requires access to the host's network namespace directly to perform packet capture. Which Docker run flag 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
✓
--network host
The --network host flag allows a container to share the host's networking namespace, providing full access to host network interfaces.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
--cap-add NET_ADMIN
Why it's wrong here
This adds capability but does not change the network namespace.
- ✗
--privileged
Why it's wrong here
While this grants broad permissions, it is not the specific flag for network namespace sharing.
- ✗
--net bridge
Why it's wrong here
The bridge mode is the default and isolates the container.
- ✓
--network host
Why this is correct
This flag joins the container to the host network stack.
About these practice questions
Courseiva writes every 305-300 question from scratch — 194 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 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.