CAPM Practice: Demonstrate an understanding of a project management plan schedule

What-If Scenario Analysis evaluates 'what would happen to the schedule if X occurred?' — testing different scenarios like key resource unavailability, technology delays, or scope additions. This helps project managers understand schedule vulnerabilities and develop contingency plans for likely scenarios before they occur.

**Why not A:** Calculating probability distributions of project completion dates describes Monte Carlo simulation, not What-If Scenario Analysis. Monte Carlo runs thousands of simulations to produce probability-based completion date ranges, while What-If analysis evaluates specific discrete scenarios.

**Why not B:** Identifying all possible risks is part of the risk identification process, not What-If Scenario Analysis. What-If analysis evaluates the schedule impact of specific scenarios that have already been identified, rather than discovering new risks.

**Why not D:** Determining optimal resource allocation across all activities describes resource optimization techniques such as resource leveling or resource smoothing. What-If Scenario Analysis focuses on evaluating schedule impacts of hypothetical events, not on optimizing how resources are distributed.