Three items from the WBS support cost estimates. Which of the following is not part of that?

1. Units of work (size of the work order, such as the number of windows to install)
2. Resources (tools and equipment, personnel, jigs etc. that facilitate work)
3. Accountability and Consequences (fundamental to risk management)
4. Time durations (how long it takes)

Two items from the WBS support schedule creation. Which ones best represent these?

1. Desired Results and Dependencies or Predecessors
2. Dependencies or Predecessors and Time Durations
3. Time Durations and Risk Analysis
4. Stakeholder Analysis and Cultural Awareness

The Work breakdown structure (WBS) greatly facilitates the project's Scope development. Which of the following statements is true of the WBS?

1. The sum of the lowest level of WBS elements must equal 100% of the scope.
2. The WBS has nothing to do with a vendor's Statement of Work (SOW).
3. 100% of the WBS is focused on everything other than deliverables.
4. 20% of the WBS does 80% of the actual work, according to the Pareto Principle.