Taken from Cert-CISSP
Related Exam: ISC2 Cert-CISSP SecurityCert: CISSP
Item Number: Cert-CISSP.5.3.7
Which cipher type replaces the original text in a message with a different text?
Previous question and answer:
Taken from Cert-PMP4ED
Related Exam: PMI Cert-PMP4ED PMCert: Project Management Professional Fourth Edition
Item Number: Cert-PMP4ED.2.9.15
You are given the network diagram with durations in weeks shown in the exhibit.
What is the Early Start of Task E?
- The Early Start of task E is week 22. The Early Start of a task is defined as when the task will start if everything takes as long as originally estimated. To calculate the Early Start of a task, you can use a forward pass through the network diagram summing the durations of the predecessor tasks. Task E is in multiple paths of the network diagram, so you must do the calculation for each path and then use the largest value. Task E is in these paths: A-B-E-F, C-D-E-F, and G-E-F. For path A-B-E-F, you sum the durations of predecessor tasks A and B (10 + 4), and task E would be able to start at week 15. For path G-E-F, you have only one predecessor task, G, with a duration of 7 weeks, so task E would be able to start at week 8. For path C-D-E-F, you sum the durations of predecessor tasks C and D, and task E would be able to start at week 22. Taking the largest of these values yields the Early Start of task E. Therefore, the Early Start of task E will be week 22.
All of the other options are incorrect because they do not represent the Early Start for task E.
- A Guide to the Project Management Body of Knowledge - PMBOK Guide 4th Edition - Project Time Management - 6.5.2 Develop Schedule: Tools and Techniques