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📝 **Question:** Why ephemeral runners, not long-running workers? 📋 Pick the right answer. 💡 **Hint:** Re-read the theory above if unsure.
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📝 **Question:** Why ephemeral runners, not long-running workers? 📋 Pick the right answer. 💡 **Hint:** Re-read the theory above if unsure.
A
Long-running workers are cheaper because warm runners avoid the cold-start cost of spinning up a fresh Docker daemon per job.
B
Security — each job gets a fresh sandbox; one repo can't pollute another's state. Long-running workers are an exfiltration vector.
C
Ephemeral runners scale horizontally with less queue-manager complexity than long-running workers that need health checks and drain logic.
D
Docker engine requires a single job per container instance — long-running workers running multiple consecutive builds violate the runtime contract.
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