Environment Variables Secrets MCQs with Answers and Explanations

Secrets management involves securely storing, distributing, and controlling access to sensitive credentials such as passwords, API keys, tokens, and certificates. Tools like HashiCorp Vault, AWS Secrets Manager, and Azure Key Vault are commonly used.

Environment variables externalize configuration from application code, allowing the same codebase to run in different environments (dev, staging, production) with different settings without code changes.