D$.N$ is a critical activity.

E$.$ S is a critical activity.

Question $4$

Which of the following statements regarding CPM networks is true?

Selected Answer:

D$.$ If a specific project has multiple critical paths, all of them will have the same duration.

Answers:

A$.$ There can be multiple critical paths on the same project, all with different durations.

B$.$ The early finish of an activity is the latest early start of all preceding activities.

C$.$ The late start of an activity is its late finish plus its duration.

D$.$ If a specific project has multiple critical paths, all of them will have the same duration.

E$.$ None of the above are true.

Question $5$

Which of the following is not characteristic of a project?

Selected Answer:

D$.$ Uses no resources

Answers:

A$.$ has a life cycle