A project's budgeted value of work completed is less than the authorized budget for planned work. What project scenario does this describe?
Correct Answer: A
Question 462
During project executing, a previously unidentified risk has just occurred. This risk will negatively effect the outcome of the project. Which of the following is best to perform next?
Correct Answer: C
Question 463
When components in a system are arranged in parallel, system reliability be:
Correct Answer: A
Regarding parallel and serial reliability: for components arranged in parallel, the reliability is better than the best component and for components arranged in serial, the reliability of the system is worse than the worst component. When components are arranged in parallel, only one of the units need to be successful for the whole system to be a success (i.e. the system fails only when every unit fails). There is redundancy built into the system. In a series arrangement, the failure of any one of the components leads to the failure of the whole system. Here is an example: Suppose two components with reliability 0.3 and 0.6 are arranged in parallel; then the reliability of the system is given by: R = 1 - [(1-R1)(1-R2)] = 1 - (0.7)(0.4) = 0.72, which is better than both 0.7 and 0.4.If two components with reliability 0.3 and 0.6 are arranged in series, then the reliability of the system is given by: R = R1 * R2 = 0.3 * 0.6 = 0.18, which is lower than both 0.3 and 0.6.Also, a parallel configuration (because of its redundancy) gives you a higher reliability (.72)than a similar serial configuration (.18). [Another way to look into this is: If, 1stS -> 1st being successful, 1stF -> 1st being unsuccessful, and 2ndS -> 2nd being successful, 2ndF -> 2nd being unsuccessful, then Probability of 1stS + 2ndS = 0.3 * 0.6 = 0.18 Probability of 1stS + 2ndF = 0.3 * 0.4 = 0.12 Probability of 1stF + 2ndS = 0.7 * 0.6 = 0.42 Probability of 1stF + 2ndF = 0.7 * 0.4 = 0.28 So, when they are in parallel, Probability of success = Probability of at least one being successful = 0.18 + 0.12 + 0.42 = 0.72 And, when they are in series, Probability of success = probability of both being successful = 0.18] So, the answer to this question is (a).
Question 464
A project manager is working on a software development project for an oil and gas client using an agile approach. The project manager is having difficulty preparing the schedule because the project has various unknowns. Which scheduling method should the project manager use to develop the schedule?
Correct Answer: B
Question 465
A project manager believes that the best way to manage is to form a good, harmonious working relationship with the team, and high performance will follow. The project manager could be defined as a _____ manager.
Correct Answer: A
Section: (none) Explanation/Reference: Four types of project leader that are considered best suited to different project circumstances are, imaginative Explorer (9,9), assertive Driver (9,1), catalyst Coordinator (5,5) and Professional Administrator (1,9) are placed in four quadrants of Focus (X) and Approach (Y) axis of General Personality Characteristics Grid. These values of (9,9), (9,1), (1,9) and (5,5) are Blake-Mouton Grid descriptions. (Refer to http://www.maxwideman.com/papers/profiles/general.htm) (1,9) represents Administrator who believes in forming a good, harmonious working relationship with the team. Administrator recognizes the need for stability, typically in order to optimize productivity through maximizing repetition to the extent possible on a project and to get the work finished. Often, requisite information must be assembled and carefully analyzed, with thought given to the trade-offs and how conflicts and problems can be resolved and disposed of in advance. Work must be carefully scheduled and procedurized if potential gains are to be realized and "all the pieces are to be carefully put in place".So, Answer A (1,9) the Administrator manager.
