PK0-004 · Question #23
A project team is overseeing the installation of a new reptile habitat at the local zoo. During execution, zoo personnel decides to house a different type of reptile that will require a different…
The correct answer is C. Cost because replacing the system incurs additional expense D. Schedule because this was an unscheduled task and will impact the timeline. Replacing an installed climate system to accommodate a different reptile species is an unplanned modification that directly and measurably impacts both the project budget and timeline. Cost and schedule are the two constraints most immediately affected.
Question
A project team is overseeing the installation of a new reptile habitat at the local zoo. During execution, zoo personnel decides to house a different type of reptile that will require a different temperature range than the capacity of the installed system. The modification has been approved. Which of the following constraints are MOST likely to be affected? (Choose two.)
Options
- AQuality because the existing system is now outside the threshold
- BRequirements because this is a change to initial scope
- CCost because replacing the system incurs additional expense
- DSchedule because this was an unscheduled task and will impact the timeline
- EStakeholders because they will need to understand the modification and provide buy-in
How the community answered
(47 responses)- A19% (9)
- B15% (7)
- C60% (28)
- E6% (3)
Why each option
Replacing an installed climate system to accommodate a different reptile species is an unplanned modification that directly and measurably impacts both the project budget and timeline. Cost and schedule are the two constraints most immediately affected.
Quality relates to whether deliverables meet defined acceptance criteria - while the installed system no longer satisfies the new requirement, it is the cost and schedule baselines that are most directly impacted by the physical replacement work.
Requirements represent the initial scope definition and are the cause of the change rather than a constraint category that is itself affected - the modification changes the requirements, but requirements are not a triple-constraint metric.
Replacing an installed climate-control system with one capable of a different temperature range requires unbudgeted procurement of new equipment and additional labor, directly increasing actual costs beyond the approved cost baseline.
The system replacement was not part of the original project schedule, so the additional procurement, removal, installation, and testing activities consume time that was not planned, pushing the timeline beyond the approved schedule baseline.
Stakeholders are participants and influencers within a project and are not classified as a project constraint, so they cannot be listed among the constraints affected by this modification.
Concept tested: Impact of approved scope change on cost and schedule constraints
Source: https://www.pmi.org/pmbok-guide-standards/foundational/pmbok
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