If a Dockerfile has multiple RUN commands installing packages separately, what is the likely effect on image size?

medium📝 Command Output Q5 of 15

Docker - Image Optimization

AImage size is smaller because each RUN is isolated

BImage size decreases because layers are merged automatically

CImage size stays the same regardless of RUN commands

DImage size increases due to multiple layers with redundant data

Step-by-Step Solution

Solution:

Step 1: Understand Docker layering
Each RUN creates a new layer; redundant data in layers increases size.
Step 2: Recognize impact of multiple RUN commands
Multiple RUN commands without combining increase image size unnecessarily.
Final Answer:
Image size increases due to multiple layers with redundant data -> Option D
Quick Check:
Multiple RUN commands = Larger image size [OK]

Quick Trick: Combine RUN commands to reduce layers and image size [OK]

Common Mistakes:

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