CompTIA Project+ (PK0-005)Project Life Cycle PhasesHard
A project manager is reviewing the project schedule and identifies that a specific activity has significant float (slack). This means the activity can be delayed by a certain amount of time without impacting the project's overall completion date. What type of activity is this, relative to the project schedule?
- AA critical activity
- BAn external dependency
- CA milestone
- DA non-critical activity
Show answer & explanationAnswer & explanation
Correct answer: D. A non-critical activity
Activities with float (slack) are by definition non-critical activities. Critical activities have zero or negative float, meaning any delay directly impacts the project's end date.
Why the other options are wrong
- A. A critical activity has zero or negative float; any delay will delay the project completion.
- B. An external dependency is a relationship between project activities and non-project activities, not a classification based on float.
- C. A milestone is a significant point or event in a project, typically with zero duration, but its criticality depends on its position in the network.
Float (Slack)
The amount of time an activity can be delayed without delaying the project's overall completion date or violating a schedule constraint.
- Calculated in the Critical Path Method (CPM).
- Critical activities have zero or negative float.
- Non-critical activities have positive float.
Memory trick: No float, it's critical. Has float, it's flexible.