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

Resource leveling adjusts activity start and finish dates to manage resource constraints — when resources are over-allocated (assigned more work than they can do) or when resource availability is limited. Leveling may extend the project duration to keep resources within availability limits. It prioritizes resource balance over schedule optimization.

**Why not A:** Resource leveling does not identify which resources are on the critical path. It resolves resource over-allocation by adjusting activity timing. Critical path analysis identifies schedule-critical activities, which is a separate process from resource leveling.

**Why not B:** Adding more resources to shorten the critical path describes crashing, not resource leveling. Resource leveling resolves over-allocation by spreading work out over time, often extending the schedule rather than shortening it.

**Why not D:** Compressing the schedule by reducing activity scope describes scope reduction as a schedule compression technique. Resource leveling adjusts timing to resolve resource constraints; it does not reduce the scope of individual activities.