CISA Domain 4: Systems Availability & Capacity Management

This episode is part of the CISA Domain 4 Deep-Dive Series, a structured curriculum that covers every subtopic in the 26% Information Systems Operations & Business Resilience domain. Each episode blends CISA exam reasoning with real-world audit leadership.

In Episode 28, we explore a scenario where a business-critical authentication server had perfect uptime — yet operated at dangerously high capacity for months. When demand spiked, it failed instantly. This episode reveals the difference between operational luck and resilience through proactive planning.

You’ll learn:

✔ What CISA really tests under Availability & Capacity Management

✔ Why uptime does NOT equal reliability

✔ How junior auditors view capacity vs. how audit leaders analyze trends and thresholds

✔ What evidence auditors must review: metrics, forecasting, threshold alerts, SLA performance

✔ How hidden capacity constraints create predictable failures

✔ How to evaluate operational maturity in capacity governance

This episode builds true capability in assessing operational resilience.

If you’re preparing for CISA or sharpening your audit judgment,

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