EX188 Networking And Compose Practice Question
Which THREE actions occur when a container is executed with the --network none flag? (Choose three)
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
✓
No default gateway is configured in the container's routing table.
Using --network none results in no external network interfaces except loopback, no default gateway, and no external IP address assigned.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
No default gateway is configured in the container's routing table.
Why this is correct
Correct. Without external interfaces, there is no default gateway.
- ✗
The container automatically shares the host's physical network card.
Why it's wrong here
Incorrect. That behavior belongs to host network mode, not none.
- ✗
The container is assigned a private IP address on the default bridge.
Why it's wrong here
Incorrect. No bridge IP is assigned in 'none' mode.
- ✓
Only the loopback (lo) interface is created inside the container.
Why this is correct
Correct. Only loopback is available.
- ✓
Port publishing flags (-p) are ignored or fail when starting the container.
Why this is correct
Correct. You cannot publish ports without a network interface to bind them to.
About these practice questions
This EX188 question is part of Courseiva's 296-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 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.