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ISQS 4350 (Burns) Exam 2 Questions
and Solutions
Which of the following statements is false? a. Probability distributions for PERT activity durations are represented by use of the Beta distribution. b. A forward pass through a project network diagram determines the early start and early finish dates for each activity. c. To complete a project it is necessary to complete all tasks on all paths through the project network. d. The critical path is the series of activities that determine the earliest time by which a project can be started. e. Both c. and d. are false statements. - answer-✔d. The critical path is the series of activities that determine the earliest time by which a project can be started. As the project manager for a software development project, you are helping to develop the project schedule. You decide that writing code for a system should not start until users sign off on the analysis work. Further, you decide that testing of a module (an object, class) will not commence until the entire module has been coded and compiled. What type of dependency is this? a. There is no dependency. b. External c. Mandatory d. Discretionary e. Internal - answer-✔c. Mandatory
The district magistrate of Arkham City has decided to rebuild the busiest road in the city. She plans to close the street for the duration of the work, causing immense inconvenience to the people who typically use the road. The project has 3 parallel paths defined as the following: Path A-B-C-H will take 14 days. Path A-F-G-H will take 28 days. Path A-D-E-H will take 20 days. Given the information on hand, which of the following statements is true? a. Path A-D-E-H is the critical path. b. Path A-B-C-H is the critical path. c. Path A-F-G-H has the largest slack time. d. Path A-F-G-H is the critical path. e. Path A-D-E-H has the largest slack time. - answer-✔d. Path A-F-G-H is the critical path. The ________ calculates the critical path and determines how long an activity can be delayed without delaying the project. a. concurrent pass b. forward pass c. backward pass d. parallel pass - answer-✔c. backward pass Which of the following is not one seven processes that make up the PMBOK knowledge area known as time (schedule) management?
For any activity that has one or more predecessors, the ________ time is always the largest early finish of any of its predecessors. If the early finish times of an activity's predecessors were 55, 40 and 35, then this time would be the largest of these three early finish times or 55. a. late finish b. early start c. early finish d. late start - answer-✔b. early start In project time management, which of the following processes involve calculating the number of work periods that are needed to complete individual tasks? a. Defining activities b. Estimating activity durations c. Controlling schedule d. Planning schedule management e. Sequencing activities - answer-✔b. Estimating activity durations According to PMBOK, the first process involved in project time management is ________. a. developing schedule b. planning schedule management c. defining activities d. estimating activity durations e. sequencing activities - answer-✔b. planning schedule management
Which of the following processes in project time management involves identifying the specific tasks that the project team members and stakeholders must perform to produce the project deliverables? a. Developing the schedule b. Sequencing activities c. Controlling schedule d. Estimating activity durations e. Defining activities - answer-✔e. Defining activities Which of the following are discrete tasks which require resources and time, within the context of projects? a. Schedules b. Activities c. Processes d. Value chains e. Milestones - answer-✔b. Activities Select the most accurate statement with regards to the Critical Path Method (CPM). a. It accounts for the interruptions that may affect an activity between the start and the finish times. b. It assumes that activities are independent of one another, with clearly defined start and finish dates.
is the duration of the critical path? What is the late start time for activity E (how late can activity E start)? a. 29 | 14 b. 28 | 12 c. 29 | 15 d. 28 | 14 e. 29 | 12 - answer-✔c. 29 | 15 Which of the following statements is false? a. A three-point estimate in PERT includes an optimistic, a most likely, and a pessimistic estimate. b. A resource breakdown structure is a hierarchical structure that identifies the project's resources by category and type. c. Duration and effort are synonymous terms. d. A Gantt chart is a common tool for displaying project schedule information on a timeline. e. Both c. and d. are false statements. - answer-✔c. Duration and effort are synonymous terms. If the time units are months, duration is measured in ________ whereas effort is measured in _______. a. months, man-months b. man-months, months c. dollars, month-dollars
d. month-dollars, dollars e. None of the alternatives is correct. - answer-✔a. months, man-months ________ is a probabilistic scheduling technique while ________ is deterministic, with ________ being most widely used in commercial software. a. PERT | CPM | CPM b. CPM | PERT | CPM c. PERT | CPM | PERT d. CPM | PERT | PERT e. CPM | CPM | PERT - answer-✔a. PERT | CPM | CPM Seven activities are to be considered for this problem. Additional information about these activities such as their activity time and immediate predecessors are included in the table that follows. Use this information to figure out the earliest completion time for this project using a Gantt chart. a. 14 weeks b. 18 weeks c. 16 weeks d. 20 weeks - answer-✔b. 18 weeks According to Larson and Gray chapter 8, cost estimates are not a budget until ________. a. budgets have been time-phased b. resources have been assigned
c. make visible the milestones of the project d. create mini projects within the context of the larger PROJECT e. All of these alternatives are correct. - answer-✔e. All of these alternatives are correct. In ProjectLibre, the tool that is used to establish sequencing among the activities is the ________. a. indent arrow on the task tab b. link tool on the task tab c. assign resources tool on the task tab d. insert tool under the task tab e. Both a. and c. are correct. - answer-✔b. link tool on the task tab In ProjectLibre, by default any link between tasks (activities) is assumed to be ________. a. Finish-to-Finish b. There is no default setting in ProjectLibre. c. Start-to-Finish d. Finish-to-Start e. Start-to-Start - answer-✔d. Finish-to-Start Suppose you wanted to start task BB five days after task AA started. How would you do this in ProjectLibre?
a. Place task BB in a start/start relationship with its predecessor AA with a lag of five days. b. Place task BB in a finish/start relationship with its predecessor AA with a lag of five days. c. Place task AA in a finish/start relationship with its predecessor BB with a lag of five days. d. Place task AA in a finish/finish relationship with its predecessor BB with a lag of five days. e. This is impossible in ProjectLibre. - answer-✔a. Place task BB in a start/start relationship with its predecessor AA with a lag of five days. In ProjectLibre, pick the statement that is false: a. ProjectLibre will not create WBS codes for you. You have to manually enter those yourself. b. ProjectLibre will add fixed costs for any task into the total project cost. c. Your first 'task' in ProjectLibre should be a PROJECT summary task under which all other tasks are subordinate. d. ProjectLibre is able to delineate a WBS and show a cost rollup on that structure. e. Like MS Project, ProjectLibre will calculate how much variable cost is associated with a task by taking the hourly rate of the resources times the number of hours required to complete a task. - answer-✔b. ProjectLibre will add fixed costs for any task into the total project cost. At the start of ProjectLibre usage, it is necessary to preset the program so tasks are manually-scheduled or auto-scheduled? a. Both b. Auto-scheduled
b. assign resources tool on the task tab c. insert tool on the task tab d. indent tool on the task tab e. None of these alternatives is correct. - answer-✔d. indent tool on the task tab In ProjectLibre, task information is entered in which view? a. Task sheet b. Tracking Gantt chart c. Network chart d. Resource sheet e. Gantt chart - answer-✔e. Gantt chart Which of the following features are supported by ProjectLibre? a. Adding a Task and Linking it in on the Gantt Chart b. Cost Rollup based on a WBS c. All of these features are supported by ProjectLibre. d. Assignment of Resources to tasks e. Work Breakdown Structure Diagram - answer-✔c. All of these features are supported by ProjectLibre. ProjectLibre can do its scheduling from ________. a. the project start date
b. the project stop date c. the project initiate date d. All of the alternatives are correct. e. Only a. and b. are correct. - answer-✔e. Only a. and b. are correct. A ________ is a bell-shaped curve that is symmetrical regarding the average value of the population (the data being analyzed) and has infinite tails. a. Rectangular distribution b. Exponential distribution c. Poisson distribution d. Beta distribution e. Normal distribution - answer-✔e. Normal distribution According to Larson and Gray chapter 8, project network times are not a schedule until ________. a. budgets have been time-phased b. resources have been assigned c. costs have been determined d. All of these alternatives are correct. e. Only a. and c. are correct. - answer-✔b. resources have been assigned By default ProjectLibre makes which of the following assumptions about time? a. 8-hour days
d. user interfaces e. backbone structure - answer-✔d. user interfaces All of the following are part of the Agile Project Management model except ________. a. flexibility b. design up front c. self organized project teams d. embrace change e. high uncertainty - answer-✔b. design up front Which of the following lifecycle models would you use if the requirements are unknown and/or unstable? a. Scrum b. Iterative c. Waterfall d. Spiral e. Extreme - answer-✔a. Scrum Scrum, agile methodologies belong to which of the following methodology types? a. traditional waterfall with high ceremony b. iterative development with high ceremony c. iterative development with high discipline
d. iterative development with low ceremony e. traditional waterfall with low ceremony - answer-✔d. iterative development with low ceremony Which of the following is responsible for rapid deployment of the software after each iteration? a. Release burndown chart b. Jenkins c. Product owner d. DevOps e. Project leader - answer-✔b. Jenkins Iterative development processes provide which important advantages ________. a. continuous integration, verification, and validation of the evolving product b. frequent demonstration of progress to increase the likelihood that the end product will satisfy customer needs c. Early detection of defects and problems d. a., b. and c. are correct. e. None of these alternatives is correct. - answer-✔d. a, b and c are correct. Which of the following is not part of the Agile Alliance manifesto that declared four core values? a. Working software over comprehensive documentation.
b. Extreme c. Agile d. Scrum e. Iterative - answer-✔a. Waterfall Top management prefers ________ development models over ________ models because they know up front how much cost and time are required. a. predictive | adaptive b. creative | predictive c. static | predictive d. adaptive | creative e. adaptive | predictive - answer-✔a. predictive | adaptive Which of the following titles in a typical scrum arrangement is the project manager? a. Scrum master b. Scrum methodologist c. Scrum developer d. Scrum leader e. Product owner - answer-✔a. Scrum master If your team's task was to develop an AI pattern recognition engine based on King Sung Fu's formulas/algorithms developed 40 years ago, which model would you likely use?
a. Agile b. Scrum c. Iterative d. Waterfall e. Extreme - answer-✔d. Waterfall To require lots of documentation, code that is well-commented, and lots of discipline is called ________. a. low ceremony iterative b. low ceremony waterfall c. high ceremony d. low ceremony agile e. low ceremony - answer-✔c. high ceremony Suppose you had decided to use a SCRUM methodology to breakup the various components of the software system. Which of the following components which you conduct sprints on first? a. minor functional components b. small details c. major functional components d. backbone structure e. user interfaces - answer-✔d. backbone structure
