PMP Exam Question 70

Aligned with PMBOK 6th EditionĀ®.

As construction manager in the building of a new stadium, you decide to follow best practices and start the electrical works after finishing the plumbing works in order to reduce the overall project risk. How would you call those dependencies?

A. Mandatory dependencies.
B. Technical dependencies.
C. Discretionary dependencies.
D. Profesional dependencies.

October 12, 2019

4 responses on "PMP Exam Question 70"

  1. PMP Solution 70

    Mandatory dependencies are those that are legally or contractually required or inherent in the nature of the work. Mandatory dependencies often involve physical limitations, such as on a construction project, where it is impossible to erect the superstructure until after the foundation has been built. Discretionary dependencies are established based on knowledge of best practices within a particular application area or some unusual aspect of the project where a specific sequence is desired, even though there may be other acceptable sequences. For example, generally accepted best practices recommend that during construction, the electrical work should start after finishing the plumbing work. This order is not mandatory and both activities may occur at the same time (in parallel), but performing the activities in sequential order reduces the overall project risk. When fast tracking techniques are employed, these discretionary dependencies should be reviewed and considered for modification or removal. The project team determines which dependencies are discretionary during the process of sequencing the activities.Therefore, the right choice for this question is C. [PMBOK 6th edition, Page 191] [Project Schedule Management]

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