Free PMP Exam Sample Question
The following PMP® exam sample question is taken from the Free PMP Exam Simulator:
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Which of the following buffers are placed at the end of the critical chain to protect the target finish date from slippage?
A.) Feeding Buffer
B.) Project Buffer
C.) Free Buffer
D.) Activity Buffer
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Hint: This buffer protects the target finish date from moving and is intended to protect the project end date.
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ANSWER AND EXPLANATION:
The correct answer is B
Explanation: A Project Buffer is placed at the end of the critical chain to protect the target finish from slippage along the critical chain. On the other hand, Feeding Buffers are placed at those points in the chain where tasks that are not on the critical path feed into the critical path. Free buffers and Activity buffers are not used in critical chain.
Reference: PMBOK® Guide 4th Edition, page 155