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What will happen if you run this Docker command? ```bash docker run -d -p 4444:4444 selenium/standalone-firefox ```

medium📝 Predict Output Q5 of 15
Selenium Python - CI/CD Integration
What will happen if you run this Docker command? ```bash docker run -d -p 4444:4444 selenium/standalone-firefox ```
AStarts a Firefox Selenium server container accessible on localhost:4444
BBuilds a new Docker image named selenium/standalone-firefox
CStops any running Selenium containers on port 4444
DRuns Firefox browser locally without Docker
Step-by-Step Solution
Solution:
  1. Step 1: Analyze the docker run command

    'docker run -d' starts a container in detached mode; '-p 4444:4444' maps container port to host.
  2. Step 2: Identify the image and purpose

    'selenium/standalone-firefox' is a Selenium server with Firefox browser inside the container.
  3. Final Answer:

    Starts a Firefox Selenium server container accessible on localhost:4444 -> Option A
  4. Quick Check:

    docker run with port mapping starts container accessible on host [OK]
Quick Trick: docker run with -p maps container ports to host ports [OK]
Common Mistakes:
  • Confusing 'run' with 'build' command
  • Thinking it stops containers instead of starting
  • Assuming it runs browser locally without Docker

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