200-901 Application Deployment and Security Practice Question
A developer wants to run a Docker container in detached mode, mapping host port 8080 to container port 80, and mounting a host directory for persistent data. Which command accomplishes this?
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
✓
docker run -d -p 8080:80 -v /host/data:/container/data myapp
The -d flag runs detached, -p maps ports, and -v mounts a volume from host to container.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
docker run -it -p 8080:80 -v /host/data:/container/data myapp
Why it's wrong here
-it runs interactively, not detached.
- ✓
docker run -d -p 8080:80 -v /host/data:/container/data myapp
Why this is correct
This command runs the container detached with port mapping and volume mount.
- ✗
docker start -d -p 8080:80 -v /host/data:/container/data myapp
Why it's wrong here
docker start does not accept -p or -v flags; those are for docker run.
- ✗
docker compose up -d -p 8080:80 -v /host/data:/container/data myapp
Why it's wrong here
docker compose uses a YAML file for configuration, not command-line flags for port and volume.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 practice question is part of Courseiva's free Cisco 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 200-901 exam.