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

Zero float means the activity is on the critical path. Any delay to this activity will directly delay the project's completion date by the same amount. Critical path activities require the highest level of monitoring and control because they directly determine whether the project will finish on time.

**Why not A:** Zero float does not indicate that an activity has been completed ahead of schedule. Float measures scheduling flexibility — the amount of time an activity can be delayed without affecting the project end date. Zero float means there is no flexibility, not that work was done early.

**Why not C:** Zero float has no connection to whether an activity has been removed from scope. An activity with zero float is still an active, scheduled activity — it simply cannot be delayed without affecting the project completion date.

**Why not D:** Float is unrelated to resource assignment status. An activity can have zero float whether or not resources have been assigned. Zero float is a characteristic of the activity's position in the schedule network relative to the critical path, not its resource allocation status.