Question 1

A project is represented by the activity durations (estimated at 90% likelihood of completion)and precedence requirements shown in the table.What is the length of the project buffer if this project is managed using critical chain methodology? $\begin{array}{|l|l|l|l|l|l|}
\hline \text { Activity } & \text { Predecessor } & \text { Length } & \text { Activity } & \text { Predecessor } & \text { Length } \
\hline \mathrm{M} & - & 8 &\mathrm{R} & -- & 12 \
\hline \mathrm{N} & - & 8 & \mathrm{~S} & \mathrm{P} & 14 \
\hline \mathrm{P} & \mathrm{M} & 12 & \mathrm{~T} & \mathrm{R}, \mathrm{Q} & 7 \
\hline \mathrm{Q} &  \mathrm{N} & 10 & \mathrm{~V} & \mathrm{~S}, \mathrm{~T} & 11\
\hline 
\end{array}$

Accepted Answer

A) 13.5 
B) 22.5 
C) 11.25 
D) 9.0

Question 2

Wayne and Garth are engaged in XP and are constantly streamlining the design and improving the code.In XP terminology,they are engaged in:

Accepted Answer

A) Scrumming. 
B) Refactoring. 
C) Sprinting. 
D) Time boxing.

Question 3

Which of the following statement is BEST?

Accepted Answer

A) The critical chain requires that all resource leveling be done before the critical chain can be identified. 
B) The critical path usually jumps task dependency links. 
C) The critical chain relies on task dependency and is discovered after the fact,once the network is laid out. 
D) The critical chain is usually the same path as the critical path within an activity network.

Question 4

Agile project management features a logical series of steps that occur sequentially,each one is begun only when its predecessor is complete.

Accepted Answer

A) True 
 B)False

Question 5

A project is represented by the activity durations (in days,estimated at 90% likelihood of completion)and precedence requirements shown in the table.How many feeder buffers are needed if this project is managed using critical chain methodology? $$\begin{array} { | l | l | l | l | l | l } 
\hline \text { Activity } & \text { Predecessor } & \text { Lengenth } & \text { Activity } & \text { Predecessor } & \text { Length } \
\hline \text { A } & - - & 18 &  \mathrm { E} &  \mathrm { C }, \mathrm { D} & 13 \
\hline B & - & 16 &  \mathrm { F} & \mathrm { C }& 9 \
\hline \mathrm { C } & \mathrm { A } & 22 & \mathrm {G} & \mathrm { E } , \mathrm { F } & 15 \
\hline \mathrm { D } & \mathrm { B } & 14 & & & \
\hline
\end{array}$$

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3

Question 6

A project that consists of six consecutive tasks that have average duration and worst-case duration estimates (in days)as shown in the table.Use Newbold's method to determine the aggregated two sigma buffer for this project.How does the project buffer computed this way compare with the estimation for project buffer offered by Goldratt?
 $$\begin{array} { | l | l | l |} 
\hline\text { Activity } & \text { Average } & \text { Worst-Case } \
\hline \text { A } & 14 & 21 \
\hline B & 20 & 28 \
\hline\mathrm {C } & 16 & 23 \
\hline \mathrm { D } & 8 & 15 \ 
\hline E & 9 & 19 \
\hline 
\end{array}$$

Accepted Answer

The answer of A project that consists of six consecutive...

Question 7

Which of these numerical (quantity)comparisons is CORRECT?

Accepted Answer

A) Scrum meeting > Sprint 
B) Scrum master > Development team 
C) Sprint time box > Project duration 
D) Daily scrum duration < Development work duration

Question 8

Which of the following statements about CCPM activity networks is CORRECT?

Accepted Answer

A) Project workers are more likely to meet a deadline for their activity than miss it. 
B) There are no milestones in the CCPM activity network. 
C) Project workers are more likely to miss a deadline for their activity than meet it. 
D) There is no project delivery deadline in the CCPM activity network.

Question 9

A project consists of four consecutive tasks that have average duration and worst-case duration estimates (in days)as shown in the table.Use Goldratt's model to determine the aggregated buffer for this project. $$\begin{array} { | l | l | l | } 
\hline \text { Activity } & \text { Average } & \text { Worst-Case } \
\hline\mathrm { X } & 12 & 20 \
\hline\mathrm {  Y }& 20 & 25 \
\hline \mathrm { Z} & 14 & 24 \
\hline \mathrm { W } & 18 & 26 \
\hline
\end{array}$$

Accepted Answer

A) 8.5 days 
B) 15.9 days 
C) 7.9 days 
D) 15.5 days

Question 10

Your next project consists of 8 consecutive 8-day activities,each estimated by a different worker in your organization.Your organizational culture dictates that you add your own safety margin of 3 days into your estimates.Unbeknownst to you,the project manager has recently converted to a critical chain project management view.The project manager knows perfectly well what sorts of games are played with activity estimates and she knows exactly how much activity padding takes place.What will the overall project safety margin be once the project manager reviews your estimates and makes the project schedule?

Accepted Answer

A) 12 days 
B) 6 days 
C) 18 days 
D) 9 days

Question 11

Your next project consists of 10 consecutive 8-day activities,each estimated by a different worker in your organization.Note that the estimators have not yet added any buffer to the 8-day figure.Your organizational culture dictates that you add your own safety margin of 30% into your estimates.The new project manager has just completed an excellent course in project management offered at the local university.When the first project meeting begins,he dazzles you with his wit and sophistication.You are considerably less charmed when he reveals that he has an exciting new technique for managing projects.He adheres to critical chain project management ideas and plans to create an overall project safety buffer after trimming the safety buffers from each of the 10 activities.How much closer has the project deadline moved?

Accepted Answer

A) 12 days 
B) 6 days 
C) 18 days 
D) 9 days

Question 12

Compose a haiku using three or more of the key terms in Agile PM.

Accepted Answer

The answer of Compose a haiku using three or more...

Question 13

A system-wide constraint is called a:

Accepted Answer

A) Rope. 
B) Resource. 
C) Drum. 
D) Chain.

Question 14

The one element that Agile shares with traditional project management in a software development environment is that all testing is done at the very end of the project.

Accepted Answer

A) True 
 B)False

Question 15

What are the key elements of extreme programming?

Accepted Answer

The answer of What are the key elements of extreme...

Question 16

Which statement about critical chain project management is BEST?

Accepted Answer

A) CCPM is a complete solution to current project management scheduling needs. 
B) In a multiproject environment where resources are shared,it is impossible to avoid multitasking. 
C) There is substantial large-scale empirical research that confirms the efficacy of CCPM. 
D) Lack of milestones within CCPM make coordination with external suppliers and subcontractors much easier.

Question 17

Picture yourself as a project manager intent on bringing CCPM to your organization that has historically used classic critical path project management.How would you convince your project team to develop 50% estimates for their project contributions rather than the 90% estimates they have used since they started with the company?

Accepted Answer

The answer of Picture yourself as a project manager intent...

Question 18

A project is represented by the activity durations (estimated at 90% likelihood of completion)and precedence requirements shown in the table.What is the overall duration of this project if it is managed using critical chain methodology? $\begin{array}{|l|l|l|l|l|l|}
\hline \text { Activity } & \text { Predecessor } & \text { Length } & \text { Activity } & \text { Predecessor } & \text { Length } \
\hline \mathrm{M} & - & 8 &\mathrm{R} & -- & 12 \
\hline \mathrm{N} & - & 8 & \mathrm{~S} & \mathrm{P} & 14 \
\hline \mathrm{P} & \mathrm{M} & 12 & \mathrm{~T} & \mathrm{R}, \mathrm{Q} & 7 \
\hline \mathrm{Q} &  \mathrm{N} & 10 & \mathrm{~V} & \mathrm{~S}, \mathrm{~T} & 11\
\hline 
\end{array}$

Accepted Answer

A) 22.5 
B) 24.75 
C) 27.0 
D) 33.75

Question 19

A project is represented by the activity durations (estimated at 90% likelihood of completion)and precedence requirements shown in the table.What is the overall duration of this project if it is managed using critical chain methodology? $$\begin{array} { | l | l | l | l | l | l | } 
\hline \text { Activity } & \text { Predecessor } & \text { Ieength } & \text { Activity } & \text { Predecesser } & \text { Ieength } \
\hline \text { A } & - - & 20 & \mathrm { D } & \mathrm { B } & 16 \
\hline \mathrm { B } & \text { A } & 20 & \mathrm { E } & \mathrm { C } & 8  \
\hline  \mathrm { C } & \text { A } & 10 & \mathrm {~F} & \mathrm { D } , \mathrm { E } & 8  \
\hline
\end{array}$$

Accepted Answer

A) 48 
B) 32 
C) 64 
D) 43.5

Question 20

In order to resolve a resource conflict,it is advisable to:

Accepted Answer

A) Work backwards from the end of the project. 
B) Work forwards from the start of the project. 
C) Begin activities at their earliest possible start time. 
D) Complete activities at their earliest possible finish time.

Exam 11: Advanced Topics in Planning and Scheduling: Agile and Critical Chain