Answer
Port conflict occurs; only the first container binds successfully while the second fails.
Quick Answer
Docker won't allow two containers to bind to the same host port — the second container fails to start with a "port already in use" error. Each service needs a unique host port. You can have many containers on the same internal container port (all using port 80 internally) as long as they map to different host ports.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ