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PK0-005 Practice Question: A project manager is developing the project…
A project manager is developing the project schedule. Dependencies include: Task A starts after Task B finishes; Task C must be completed before Task D can start; Task E can start when Task F starts. Which dependency types are being used?
⚠ Common exam trap
Many exam-takers confuse 'starts after finishes' with Start-to-Start (SS) or Start-to-Finish (SF), failing to recognize that 'starts after' implies the predecessor must finish first, which is the definition of Finish-to-Start (FS).
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
FS, FS, SS
The three dependency types described map exactly to Finish-to-Start (FS), Finish-to-Start (FS), and Start-to-Start (SS). 'Task A starts after Task B finishes' is FS; 'Task C must be completed before Task D can start' is also FS; 'Task E can start when Task F starts' is SS. These are the standard dependency definitions used in project scheduling per PMI guidelines.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
FS, FS, SS
Why this is correct
Task A starting after Task B finishes is finish-to-start; Task C completing before Task D starts is also finish-to-start; Task E starting when Task F starts is start-to-start. The sequence therefore reads FS, FS, SS.
- ✗
SS, SS, SS
Why it's wrong here
The first dependency is finish-to-start (A starts after B finishes), not start-to-start, so the first SS is wrong; the second (C before D) is FS, not SS; only the third (E starts when F starts) is genuinely SS. It is tempting because SS does describe the third relationship.
- ✗
FS, FS, SF
Why it's wrong here
The first two dependencies are finish-to-start, correctly labelled FS, but the third is start-to-start (E starts when F starts), not start-to-finish. It is tempting because SF exists in scheduling, yet it means the successor finishes when the predecessor starts, which the stem does not describe.
- ✗
FS, FF, SS
Why it's wrong here
The first two dependencies are finish-to-start (A after B finishes; C before D starts), not FS then FF, so the middle FF is wrong; only the third is start-to-start. It is tempting because FS correctly labels the first pair, but FF means both tasks finish together, which the stem never states.
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