07 Test - CPM, estimating, scheduling

Which of the following is not true for the critical path?

• It has zero float.

• It ’ s the shortest activity sequence in the network.

• You can determine which tasks can start late without impacting the project end date.

• It controls the project finish date.

You are working on your network diagram. Activity A is a predecessor to Activity B. Activity B cannot begin until Activity A is completed. What is this telling you?

• There is a mandatory dependency between Activity A and Activity B.

• There is a finish - to - start dependency relationship between Activity A and Activity B.

• Activity A and Activity B are both on the critical path.

• Activity B is a successor to multiple tasks.

Which of the following is true for float or slack time?

• It ’ s calculated by adding the durations of all activities and dividing by the number of activities.

• It ’ s time that you add to the project schedule to provide a buffer or contingency.

• It’s the amount of time an activity can be delayed without delaying the project completion.

• It is only calculated on the longest path of the network diagram.

Which of the following is not a tool used to determine a project ’ s critical path?

• Forward pass

• Mandatory dependency

• Float calculation

• Backward pass

Activity B on your network diagram has a most likely estimate of 8 days, a pessimistic estimate of 11 days, and an optimistic estimate of 6 days. What is the three - point estimate for this task rounded to the nearest whole number?

• 11 days

• 25 days

• 8 days

• 6 days

Which of the following is not true for critical path activities?

• The early start is always less than the late start.

• These activities are on the longest path on the network diagram.

• The float is zero.

• The late finish is always the same as the early finish.

You are estimating a new project with team. Team members say the project is very similar to the previous one that they worked. They can list all pitfalls. Based on their experience in the previous project they can prepare the estimate very quickly. What estimation technique the team is using?

• Expert judgment

• Analogous estimating

• PERT

• Algorithmic technique function based

Your task requires 4 miles of paving, and it will take 30 hours to complete a mile. On a past project similar to this one, it took 150 hours to complete. Which of the following is true regarding this estimate?

• The total estimate for this task is 120 hours, which was derived using expert judgment.

• The total estimate for this task is 120 hours, which was derived using parametric estimating.

• The total estimate for this task is 150 hours, which was derived using analogous estimating.

• The total estimate for this task is 150 hours, which was derived using expert judgment.

You’ve defined a task in a project schedule in which your team members will develop an XML application that uses a MySQL back end. Although the data base administrator (DBA) has plenty of experience with Oracle and Microsoft SQL Server, he has never been exposed to MySQL. Which of the following elements will most likely be affected?

• Resource allocation

• Task estimation

• Activity definitions

• Determining critical path tasks

What is the difference between duration and effort?

• They mean the same thing, just different names.

• Duration is total elapsed time and always longer than effort.

• Duration is total elapsed time when effort is amount of work.

• Effort is elapsed time when duration is amount of work.