PMBOK指南(第5版)第六章习题-1

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1. You have received three
estimates for your project activity. The optimistic estimate is 245
days, the pessimistic estimate is 269 days, and the most likely
estimate is 257 days. This particular activity is critical to the
project, and your project sponsor wants to know with 95 percent
certainty how long it will take to complete this activity. Which of
the following do you tell the project sponsor? A. 265 days to 273 days B. 253 days to 261 days C. D. 249 days to 265 days 1. 你获得项目活动的三种估算。最乐观估算为245天,最悲观估算为269天,最可能估算为257天。这个活动对项目非常关键,你的项目发起人希望获得关于活动历时95%的确定结果,你将向发起人汇报: A. 265至273天 B. 253至261天 C. 261至277天 D. 249至265天 2.According to learning curve theory, when many items are produced repetitively A. Production equipment that requires less operator training lowers unit costs B. Unit costs decrease as production rates increase C. Unit costs decrease in a regular pattern as more units are produced D. Costs of training increase as the level of automation increases 2. 根据学习曲线理论(learning curve theory),当很多项是重复生产时: A.需要较少操作员培训的生产设备可以降低单位成本 B.随着生产率的提高,单位成本减少 C.随着生产更多的单位,单位成本有规律的降低 D.随着自动化程度的增加,培训成本也增加 3.The flexibility of scheduling is by A. Free float B. Total float C. ADM D. Crashing 3. 进度安排的灵活性是由( A. 自由时差 B. 总时差 C. 箭线图法 D. 赶工 4. You have received estimates for one of your project tasks as follows: The pessimistic estimate is 24 days, the optimistic estimate is 18 days, and the most likely estimate is 20 days. What is the standard deviation? A. 1 B. 0.33 C. 0.67 D. 1.5 4. 你收到项目任务的估算如下,最悲观24天,最乐观18天,最可能20天,一个标准差是多少? A. 1 B. 0.33 C. 0.67 D. 1.5 5. Which of the following choices include all the tools and techniques to the process of estimate activity duration? A. Analogous estimating, parametric estimating and three-point estimating B. Expert judgment, analogous estimating, parametric estimating and three-point estimating C. Expert judgment, analogous estimating, parametric estimating three-point estimating durations and reserve analysis D. Expert judgment, analogous estimating, parametric estimating three-point estimating durations and bottom-up estimating 5. 估算活动持续时间的工具方法包括: A. 类比估算、参数估算、三点估算 B. 专家判断、类比估算、参数估算、三点估算 C. 专家判断、类比估算、参数估算、三点估算和储备分析 D. 专家判断、类比估算、参数估算、三点估算和自下而上估算 6.When is the project completion changed? A. Compression of Critical Path B .When the use of contingency reserve is not allowed C. At the time of project resources are decreased D. No float 6. 什么时候项目的完成会发生变动: A.关键路径压缩时 B.当不允许使用应急储备时 C.当减少项目资源的时候 D.没有总时差的情况下 7.Resource leveling generally A. Increases the total project cost. B. Delays project completion. C. Requires less resources D. Requires more resources 7. 资源平衡通常: A.增加整个项目成本 B.拖延项目的完成 C.需要较少的资源 D.需要更多的资源 8.During the duration compression you increased the resources to a critical path activity or activities. What must be further considered? A. The delay of the other activity B. New critical activities come out C. The resources assigned to the other tasks on the critical path D. The longest task which resides in the schedule 8.在历时压缩过程中,你为关键路径活动增加了资源。接下去必须考虑什么呢? A.其他活动的拖延 B.产生新的关键活动 C.分配到关键路径其他任务的资源 D.进度计划中工时最长的任务 9.Once the durations of the activities are calculated for a completed network, a forward pass and a backward pass will provide: A. the float of the activities B. the early start and late start only C. the critical path D. A and C 9.一旦为一个完整网络计算出活动历时,顺推法与逆推法就会提供, A.活动的总时差 B.只有最早开始与最晚开始时间 C.关键路径 D. A和C 10.A project has three critical paths. What difference does this make to the project? A. It makes it easier to manage B. It increases the project risk C. It requires more people D. The situation is not possible 10. 项目有三条关键路径。这对项目有什么不同吗? A. 它使项目更易于管理 B. 它增加了项目风险 C. 它需要更多的人员 D. 这种情况是不可能的 |
习题解答,2013年7月12日9:30更新
1. 参考答案:D。平均值为257天,标准差为4天。计算方法参见培训讲义第129页,或《PMBOK指南》第5版第170-171页 2. 参考答案:C。选项C就是学习曲线的定义,学习曲线通俗的说法就是“熟能生巧”。参见培训讲义第128页 3. 参考答案:B。参见培训讲义第139页,或《PMBOK指南》第5版第176-177页 4. 参考答案:A。计算方法参见培训讲义第129页,或《PMBOK指南》第5版第170-171页 5. 参考答案:C。参见培训讲义第125页,或《PMBOK指南》第5版第166页 6. 参考答案:A。关键路径决定项目的最短工期,当关键路径压缩,项目的工期就会缩短 7. 参考答案:B。资源平衡的前提是资源不足,资源平衡会导致工期延长。参见培训讲义第142页,或《PMBOK指南》第5版第179页 8. 参考答案:B。进度压缩是压缩关键路径时间,次关键路径可能会成为新的关键路径 9. 参考答案:D。或《PMBOK指南》第5版第176-177页 10. 参考答案:B。有三条关键路径,意味着任何一条延误,都会导致项目延误,风险较高。参见培训讲义第139页,或《PMBOK指南》第5版第176-177页 |
PMBOK指南(第5版)第六章习题-2
11.A task has an early
start of day three, a late start of day 13, an early finish of day
nine, and a latefinish of day 19. What is the task’s
float? A. 10 B. 6 C. 3 D. 19 11.一个活动最早开始日期为第3天,最后开始日期为第13天,最早结束日期是第9天,最晚结束日期是第19天。这个任务的浮动时差是? A. 10 B. 6 C. 3 D. 19 12. Which estimating technique(s) uses a statistical relationship between historical data and other variables? A. Analogous Estimating. B. Bottom-up estimating C. Parametric estimating D. Statistical estimating 12. 运用历史数据和其他变量之间的统计关系的估算方法是: A. 类比估算 B. 自下而上估算 C. 参数估算 D. 统计估算 13.Early in the life of your project, you are having a discussion with the sponsor about what estimating techniques should be used. You want a form of expert judgment, but the sponsor argues for analogous estimating. It would be BEST to: A. agree to analogous estimating as it is a form of expert judgment. B. suggest life-cycle costing as a compromise. C. determine why the sponsor wants such an accurate estimate. D. try to convince the sponsor to allow expert judgment because it is typically more accurate. 13. 在项目的早期, 你和项目投资人就采用何种估算技术进行了讨论。你想采用专家判断的形式,可是项目投资人争论使用类比估算。那么最好你: A. 同意采用类比估算,因为它是专家判断的一种 B. 作为妥协,建议采用全生命周期成本估算法 C. 分析为什么项目投资人希望采用这么精确的估算 D. 尝试说服项目投资人采用专家判断,因为此方法很经典更加精确 14.Analogous estimating: A. Uses bottom-up estimating techniques B. Is used frequently during the Execution Phase of the project C. Uses top-down estimating techniques D. Uses actual historical costs 14. 类比估算(Analogous estimating): A.采用了自下而上的估算技术 B.最常用于项目执行阶段 C.采用自上而下的估算技术 D.采用实际历史成本 15.The purpose of making a "backward pass" is to determine the: A. Critical path B. Early finish dates C. Late start dates D. finishing dates 15. 逆推法的目的是确定: A. 关键路径 B. 最早完成日期 C. 最晚开始日期 D. 赶工日期 16.Several types of float are found in project networks. Float that is used by a particular activity and does not affect the float in later activities is called A. Extra float B. Free float. C. Total float D. Expected float 16. 在项目工作网络中有几种类型的浮动期。那些在特定活动中使用并且不影响后来活动的浮动期被称作 A. 多余的浮动期 B. 自由的浮动期 C. 总的浮动期 D. 预期的浮动期 17.You are the project manager on a project that has a total slack of -20. What should you do FIRST? A. Use less experienced team members B. Request an extension of the project due date C. Acquire more resources for critical path tasks D. Fast track the project if overall project risk is already too high 17. 你是项目经理,你所负责的项目的总浮差为-20。你首先应该做什么? A. 使用较少经验的团队成员 B. 请求延长项目的预期日期 C. 为关键路径获得更多资源 D. 如果项目风险已经很高,快速跟进此项目 18."I cannot test the software until I code the software." This expression describes which of the following dependencies? A. Discretionary B. Soft C. Preferential D. Mandatory or hard 18. "在编码完成之前,我不可能测试软件。"这种观点代表了下列哪种依赖关系? A.灵活性的依赖关系 B.软逻辑关系 C.优先逻辑 D.强制性依赖关系或硬逻辑关系 19.Which characteristic distinguishes the network diagram from the Gantt chart? A. Critical dependencies B.Few resources C.Critical dates D.Key milestones 19. 何种特性将网络图与甘特图表区别开? A. 关键依赖关系 B. 为数不多的资源 C. 关键日期 D. 重要里程 20.Activity A has duration of 3 days and begins on the morning of Monday the 4'". The successor activity, B, has a finish-to-start relationship with A. The finish-to start relationship has 3days of lag, and activity B has duration of 4 days. Sunday is a non work day. What can be determined from these data? A. The total duration of both activities is 8 days. B. Calendar time between the start of A to the finish of B is 11 days. C. C The finish date of B is Wednesday the 13'". D. Calendar time between the start of A to the finish of B is 14 days. 20. 活动A工时为3天并开始于星期一早晨,4号。后继活动B与A具有完成--开始依赖关系。完成--开始关系有3天的滞后,而且活动B工时为4天,星期日是非工作日。从这些数据可以得出? A. 两项活动总工时为8天 B. 活动A开始到活动B完成之间的日历时间是11天 C. 活动B完成日期是星期三,13号 D. 活动A开始与活动B完成之间的日历时间为14天 |
习题解答,2013年7月15日13:30更新
11. 参考答案:A。时差=活动最晚开始时间-活动最早开始时间=活动最晚结束时间-活动最早结束时间。参见培训讲义第137页,或《PMBOK指南》第五版第176-177页 12. 参考答案:C。参数估算的定义。参见培训讲义第127页,或《PMBOK指南》第五版第170页 13. 参考答案:A。类比估算就是专家判断。参见培训讲义第126页,或《PMBOK指南》第五版第169-170页 14. 参考答案:C。类比估算是一种自上而下的方法。参见培训讲义第126页,或《PMBOK指南》第五版第169-170页 15. 参考答案:C。逆推法从网络图的右端往左端推导,得到每个活动的最晚开始、最晚结束日期。参见培训讲义第136页,或《PMBOK指南》第五版第176-177页 16. 参考答案:B。自由时差的定义。参见培训讲义第139页,或《PMBOK指南》第五版第539页 17. 参考答案:C。总时差为负,说明进度已经延期或管理层有强制完工日期,需要进度压缩,选项C就是赶工。参见培训讲义第139页,或《PMBOK指南》第五版第176-177页 18. 参考答案:D。硬逻辑关系的定义。参见培训讲义第117页,或《PMBOK指南》第五版第157页 19. 参考答案:A。网络图有逻辑关系,甘特图没有逻辑关系。参见培训讲义第121、148页,或《PMBOK指南》第五版第159、182页 20. 参考答案:B。活动A开始到活动B完成之间的日历时间是:3+3+1(星期日,非工作日)+4=11天 |
PMBOK指南(第5版)第六章习题-3
21.The total float for
a A. The critical path must be evaluated to determine the actual float. B. Project is expected to finish 20 days earlier. C. Each activity has 20 days float D. Duration Compression may be required to satisfy the project completion. 21. 一条路径的总时差是-20天,它的含义是什么? A. 为了确定实际总时差,必须对关键路径进行评价 B. 项目预期会提前20天完成 C. 每个活动时差为20天 D.为了准时完成项目,需要进行工期压缩 22.In crashing a task, you would focus on A. As many tasks as possible B. Non-critical tasks C. Accelerating performance of tasks on critical path D. Accelerate performance by minimizing cost 22. 在任务赶工时,你会集中于: A.尽可能多的任务 B.非关键任务 C.加速关键路径上任务的执行 D.通过降低成本加速执行 23. You are assessing the cost for a software development project. You discovered that, except for buying CAD application software, you need to hire some staff to plot on it. And more drawings you have, the unit cost will be less. This is because of: A. Monte Carlo Analysis B. Cause and Effect C. Learning Curve Theory D. The Law of Diminishing Returns 23. 你在评估一个软件项目的成本。你发现,除了购买CAD软件费用外,只要雇用人,进行画图,就可以了。这样,你画图越多,单位成本就越低。这是: A. 蒙特卡洛分析 B. 因果关系 C. 学习曲线理论 D. 收益衰减法则 24.While reviewing project performance, the project manager determines that the project is behind schedule. What is the BEST thing to do? A. Let management know B. Tell the customer C. Look for tasks that can be done in parallel D. Remove resources from the project to one that is not failing 24. 评审项目绩效时,项目经理发现项目落后于进度。最应该做的是: A. 让管理层知道 B. 告诉客户 C. 寻找可以并行执行的任务 D. 从项目移除资源到另一个没有失败的项目上 请参阅以下信息,回答问题25和26: http://www.pmsalon.net/attachments/month_1307/1307151333d2ffed1ab10e6adb.jpg 25.任务D提前四周完成。这对项目期限产生什么影响? A.项目期限没有任何改变 B.期限减少一周 C.期限减少三周 D.期限减少四周 26.描述该变更之前原关键路线的任务顺序为何? A.B、G、H和L B.A、D、F、K和L C.B、C、E、K和L D.B、C、D、F、K和L 请参阅以下信息,回答问题27和28: 项目有三个活动,A活动要5周,B活动要6周,C活动要7周,A活动完成1周后B才能开始,C活动要在B开始后一周才能开始 27.项目一共要多久能完成? A. 12周 B. 13周 C. 14周 D. 17周 28.活动B与活动C的逻辑关系是什么? A. 开始到开始 B. 开始到完成 C. 完成到开始 D. 完成到完成 29.During planning you discover that the time needed to complete the project is longer than the time available. What do you do? A. Contact the customer and tell them that their required date can not be met. B. Meet with management and tell them that their required date cannot be met. C. Crash or fast track the project D. Crash or fast track the project and go to management with options 29.在计划编制过程中,如果你发现项目完成所需时间超过了可利用的时间,你该做些什么呢? A. 与客户碰头,告诉他们不能按要求的日期完成 B. 与管理层会面,告诉他们不能按要求日期完成 C. 项目进行赶工或快速跟进 D. 项目进行赶工或快速跟进,并且向管理层提出选择方案 30.A person estimates that a commute home will most likely take one hour. On further questioning, she estimates that the trip could take as little as 45 minutes, best case, or as long as 1 hour 45 minutes, worst case. What is the standard deviation based on the estimates? A. 10 minutes B. 15 minutes C. 50 minutes D. 60 minutes 30.一个人估计她回家最可能的情况是花1小时时间。她又进一步推算,在最快情况下要45分钟,最慢要1小时45分钟基于这样的估计,这个人回家所花的时间的标准差是多少 A. 10分钟 B. 15分钟 C. 50分钟 D. 60分钟 31.In attempting to complete the project faster, the project manager looks at the cost associated with crashing each task. The BEST approach to crashing would also include looking at the: A. Risk impact of crashing each task B. Customer’s opinion of what tasks to crash C. Boss’s opinion of what tasks to crash and in which order D. Project phase in which the task is due to occur 31.为更快完成项目,项目经理研究与每项活动赶工相关的费用。为得到更好的赶工方法,还应关注: A. 对每项活动赶进度的风险影响 B. 客户针对什么活动进行赶进度的意见 C. 领导针对什么活动进行赶进度以及采取何种次序的意见 D. 活动发生的项目所在阶段 32. Which of the following are GENERALLY illustrated BETTER by bar charts than network diagrams? A. Resource trade-off B. Critical paths C. Logical relationships D. Progress or status 32.总的说来,下面哪个选项在横道图中比网络图中能得到更好的图示? A. 资源权衡 B. 关键路线 C. 逻辑关系 D. 进展或状态 33. Five tasks are scheduled to be completed in sequence. Each task has a finish-start relationship with the next task. Each has one day of total float. As of today, task-1 and task-2 have been completed on schedule. How many days of float remain in the schedule for these tasks? A. One B. Two C. Three D. Zero 33. 五项任务按照顺序排列着。每一个任务与另一个任务都是结束-开始的关系。每一个任务只有一天 的总时差。到了今天,任务1和任务2按进度完成了。按照进度,剩余任务的时差是多少天? A. 一天 B. 二天 C. 三天 D. 34.The critical path time needs to be reduced by 20% .you may take the following actions except: A.Adding resources B.Crashing time schedule C.Eliminating float D.Paralleling activities 34.当需要减少20% 关键路径时间时,你可以采用下列的行动,但( A.增加资源 B.压缩时间 C.消除浮动时间 D. 并行安排活动 35.An Activity-On-Node (AON) project diagram shows the following activities on two critical paths,D-E-J-L and D-E-G-I-L. Each activity is at least three days in duration, except for the activity L that is one day in duration. If you are directed to reduce the project by one day, which activities are MOST likely to change? A. L B. E or J C. G or I D. D or E 35.一个AON图显示了在两个关键路径上的下列活动:D-E-J-L 和D-E-G-I-L。除了L历时为1天外,其他每个活动有最少3天历时。如果你计划减少这个项目历时1天,哪个活动最可能被修改? A. L B. E 或 J C. G 或 I D. D 或 E 36.You are a project manager for a new product development project that has four levels in the work breakdown structure, and has been sequenced using the precedence diagramming method. The duration estimates have been compressed and a schedule created. What time management activity would you do NEXT? A. Begin schedule control B. Gain approval C. Analogously estimate the schedule D. Begin resource planning 36. 你是一名负责一个新产品开发项目的项目经理,该项目的WBS有四级,并已用紧前关系绘图法进行了活动排序。活动持续时间估算已经被压缩,并完成了进度表编制。下一步你该进行什么时间管理活动? A. 开始进度控制 B. 获得批准 C. 类比估算进度 D. 开始资源规划 37.As for Critical Chain Method,which of the following is NOT proper? A. Critical path is not calculated in Critical Chain Method. B. Critical Chain Method focuses on controlling buffers rather than critical paths. C. Critical Chain is constrained by resource availability. D. Critical Chain Method generally uses smaller duration estimates than those in Critical Path Method. 37.对于关键链法,下面哪项是不合适的? A. 关键路径不是在关键链法中计算出来的 B. 关键链法关注于控制缓冲而不是关键路径 C. 关键链受到所获资源的约束 D. 关键链法通常比关键路径法中使用更少的历时估算 38.A project manager is scheduling a project where the performing organization has currently many projects and there are serious resource conflicts among other projects.In this environment, which tool is the least effective? A. Critical Chain Method B. Reverse resource allocation C. CPM D. Simulation 38.项目经理正在安排一个项目进度,与此同时公司有几个同时进行的项目,并且该项目与其他项目之间存在着严重的资源冲突,在此情形下,哪个工具最无效? A. 关键链方法 B. 储备资源分配 C. 关键路径法 D. 模拟 39.Decomposition is a technique used for both create WBS and define activity . Which statement best describes the role decomposition plays in define activity as compared to create WBS? A. Final output is described in terms of work packages in the WBS. B. Final output is described as deliverable or tangible items. C. Final output is described as activities or action steps. D. Decomposition is used the same way in create WBS and activity definition. 39.分解是一种既可用于创建WBS,又可用于定义活动的技术。同创建WBS相比,下列哪项陈述最好地描述了分解在定义活动中发挥的作用? A.最终输出是用WBS中的工作包来说明的。 B.最终输出被描述为可交付成果或有形产品. C.最终输出被描述为活动或行动步骤 D.分解在创建WBS的用途与在定义活动中的用途完全相同 40.You are managing a construction project for a new city water system. The contract requires you to use special titanium piping equipment that is guaranteed not to corrode. It also requires the use of kryptonite bolts to assemble the piping system. Because kryptonite has a mass density that is 16 times its weight, the pipe must be resting in the ground a total of 10 days before the bolts can be installed. In this example, the 10-day period is defined as A. Lag B. Lead C. Float D. Slack 40.你负责管理一个城市用水系统项目。为了避免水管生锈,合同上要求使用铁合金的管道设备, 此外还要用不锈钢铆钉来组装这些管道。根据某些技术要求,这些管道放置好以后要过10天才能装铆钉。这10天被称作: A. 滞后时间 B. 前置时间 C. 浮动时间 D. 松弛时间 |
习题解答,2013年7月16日9:30更新
21. 参考答案:D。路径时差小于0,说明进度延期,需要进度压缩。参见培训讲义第139页,或《PMBOK指南》第五版第176-177页 22. 参考答案:C。赶工需要压缩关键路径上的关键活动。参见培训讲义第146页,或《PMBOK指南》第五版第181页 23. 参考答案:C。学习曲线的定义。参见培训讲义第128页 24. 参考答案:C。进度落后,需要进度压缩,选项C是进度压缩中的快速跟进。参见培训讲义第147页,或《PMBOK指南》第五版第181页 25. 参考答案:D 26. 参考答案:D 27. 参考答案:C。5+1+1+7=14周 28. 参考答案:A 29. 参考答案:D。进度落后,需要进度压缩。参见培训讲义第146-147页,或《PMBOK指南》第五版第181页 30. 参考答案:A。标准差的计算公式。参见培训讲义第129页,或《PMBOK指南》第五版第170-171页 31. 参考答案:A。赶工会导致风险。参见培训讲义第146页,或《PMBOK指南》第五版第181页 32. 参考答案:D。甘特图可表示时间,不表示逻辑关系。网络图表示逻辑关系,不表示时间。参见培训讲义第148页、121页, 或《PMBOK指南》第五版第182页、159页 33. 参考答案:A。每个任务有一天的时差,任务1和任务2按进度完成,说明没有动用时差,后续任务的时差还是1天。 34. 参考答案:C。选项A、B、D是进度压缩方法。参见培训讲义第146-147页,或《PMBOK指南》第五版第181页 35. 参考答案:D。有二条关键路径,要减少1天的历时,那么应该修改共同的活动:D或E或L。但活动L只有1天,进度压缩是不改变范围的,排除活动L。那么就只有活动D或E了,即选项D 36. 参考答案:B。进度计划制定好后,应该获得批准,成为进度基准 37. 参考答案:A。关键链法中有关键路径的。参见培训讲义第140页,或《PMBOK指南》第五版第178页 38. 参考答案:C。关键路径不考虑资源制约。参见培训讲义第134页,或《PMBOK指南》第五版第176页 39. 参考答案:C。参见培训讲义第113页,或《PMBOK指南》第五版第151页 40. 参考答案:A。滞后时间的定义。参见培训讲义第120页,或《PMBOK指南》第五版第159页 |
41.Unlike bar charts, milestone charts show____ 习题解答,2013年7月17日17:30更新
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61. Inputs into Estimate
Activity Resource include: A. Resource availability, bottom-up estimating, and activity list B. Resource breakdown structure, activity resource requirements and activity list C. Activity resource requirements, activity list, and activity attributes D. Activity list, activity attributes, and resource calendars 61. 估算活动资源的输入包括: A. 资源可利用情况、自下而上估算、活动清单 B. 资源分解结构、活动资源需求、活动清单 C. 活动资源需求、活动清单、活动属性 D. 活动清单、活动属性、资源日历 62.PERT是什么? A. Program Evaluation and Review Technique B. Project Evaluation and Review Technique C. Project Estimate and Review Technique D. Program Estimate and Review Technique 63.After preparing the probability distribution of cost outcome for a project, the estimate, with a 15% probability of over-run, is approximately one standard deviation_______ A. Below the mean B. Above the median C. Above the mean D. Above the median 63. 在做好项目成本结果概率分布后,有15%可能被超过的估算大约_______一个标准差 A.低于平均数 B.高于中位数 C.高于平均数 D.低于中位数 64.Analogous estimating: A. Uses bottom-up estimating techniques. B. Uses the actual cost of previous, similar projects as the basis for estimating the cost of the current project. C. Is used most frequently in the later stages of a project. D. Summarizes estimates for individual work items. 64.类比估算: A. 使用自底向上估算技术 B. 使用以前相似项目的实际成本做基础估算当前项目的成本 C. 经常用于项目的较晚的阶段 D. 将单独的工作条目估算进行累加 65. 项目经理要开始做一个信息系统,和他刚刚完成的一个系统非常相似,他应该采用什么样的技术方法去估算? A. 类比估算 B. 专家判断 C. 历史信息 D. 参数估算 请参阅以下信息,回答问题66和67 http://www.pmsalon.net/attachments/month_1307/13071717400def62bb39cb23d9.jpg 66. 您获悉为完成活动C所需的资源不能立即提供。如果不采取任何行动,这将使活动C延误三天,这将有何影响? A.完工日期延误一天 B.资源限制 C.减少活动C的浮动时间 D.完工日期延误三天 67. 对活动D增加资源以缩短两天期限,而对活动G的期限延长到七天。项目将在何时完成? A.多用两天 B.同时 C.多用一天 D.提前一天 68. Who is responsible for the activity duration estimation? A. project manager B. the person on the project team who is most familiar with the nature of the activity C. the person on the project team who is responsible for the activity D. sponsor 68.谁负责活动历时估算? A. 项目经理 B. 熟悉这个活动本质的团队成员 C. 负责这个活动的项目团队成员 D. 赞助人 69. 理想情况下,资源均等(resource A. 负浮动的活动 B. 正浮动的活动 C. 零浮动的活动 D. 在关键路径上的活动 70. 自上而下估算也是? A.专家判断 B.储备分析 C.三点估算 D.蒙特卡洛 |
习题解答,2013年7月18日14:00更新
61. 参考答案:D。参见培训讲义第122页,或《PMBOK指南》第五版第161页 62. 参考答案:A。参见培训讲义第128页,或《PMBOK指南》第五版第549页 63. 参考答案:C。在正态分布图中,加权平均值到无穷小这个区间的概率是50%,加权平均值到【加权平均值+一个标准差】这个区间的概率是68.26%/2=34.14%,那么高于或超过【加权平均值+一个标准差】的概率是15.87%,大约15%。参见培训讲义第129页 64. 参考答案:B。类比估算的定义。参见培训讲义第126页,或《PMBOK指南》第五版第169页 65. 参考答案:A。类比估算的例子。 参见培训讲义第126页,或《PMBOK指南》第五版第169页 66. 参考答案:C。关键路径是A-E-G,3+7+5=15天;非关键路径A-C-F,3+3+6=12天。活动C有3天时差,延误三天只是减少活动C的时差,对于项目没有影响 67. 参考答案:A。关键活动G延长二天,那么关键路径A-E-G是3+7+5+2=17天,项目将多用两天 68. 参考答案:B。估算是专家的工作,由最熟悉的人员来估算活动时间。参见培训讲义第125页,或《PMBOK指南》第五版第167页 69. 参考答案:B。资源均等就是资源平衡,应该作用于非关键路径,即活动时差大于0。参见培训讲义第142页,或《PMBOK指南》第五版第179页 70. 参考答案:A。自上而下估算就是一种专家判断法。参见培训讲义第126页,或《PMBOK指南》第五版第169-170页 |