In addition to debugging, observability helps with which of the following?

• A. Cost optimization
• B. Reliability
• C. Accessibility
• D. Compliance

Answer: (B)

Observability goes beyond debugging by providing a real-time, data-driven view of how a system behaves in production. With logs, metrics, and traces, you can monitor key signals like latency, error rates, throughput, and service dependencies, which lets you detect anomalies, understand root causes across microservices, and verify that the system meets its targets even under changing load. This visibility directly supports reliability because you can set and track service level objectives, identify and respond to issues before they impact users, and shorten the time to recover when incidents occur. While cost optimization, accessibility, and compliance can benefit indirectly from better visibility, the primary and most direct benefit of observability in this context is improving reliability.