A microservice fails to load its configuration from environment variables and crashes. Which is the most likely cause?

medium📝 Analysis Q14 of 15

Microservices - Configuration and Secrets Management

AThe service code has a syntax error unrelated to config

BEnvironment variables were not set before service startup

CThe service uses hardcoded values instead of env vars

DThe database is down

Step-by-Step Solution

Solution:

Step 1: Understand environment variable loading
Microservices read environment variables at startup. If variables are missing, config loading fails.
Step 2: Identify cause of crash
If env vars are not set before starting, the service cannot find needed config and may crash or error out.
Final Answer:
Environment variables were not set before service startup -> Option B
Quick Check:
Missing env vars cause config load failure [OK]

Quick Trick: Set env vars before starting service [OK]

Common Mistakes:

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