The following PMP® exam sample question is taken from the Free PMP Exam Simulator at http://free.pm-exam-simulator.com – The answer is at the very bottom:
Activity / Duration / Predecessor
A / 2 / Start
B / 4 / A,E
C / 6 / A
D / 3 / B,C
E / 7 / Start
F / 2 / E
What is the duration of the critical path?
Hint: Use PDM to calculate.
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ANSWER AND EXPLANATION:
The correct answer is B
Explanation: The critical path is EBD and the duration of the critical path of the data given is 14.
Reference: PMBOK Guide 4th Edition, page 138