New PMP Question & Answers with explanation

The best practice to gather and document lessons learned is during weekly progress meetings. The agenda can have a lessons-learned brainstorming item at the end of these meetings. You can ask team members to put forward their recommendations, but it is always better to adopt a more structured way to gather lessons learned. Which of the following approaches will ensure you capture important lessons learned on your project?
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Once the project charter is authorized, it is the project manager’s duty to distribute the charter to all key stakeholders and ensure common understanding of the key deliverables, milestones, and their roles and responsibilities. During which of the following processes is the project charter distributed to the project stakeholders?
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Nancy is carrying out cost-benefit analysis for a project. If undertaken, the project will start in January next year and end by December. The project will incur a constant cost of $10,000 each month (payable by the end of each month) giving a total cost of $120,000 for the project. The revenue from the project is collected on a quarterly basis. The total revenue for the project by the end of December will be $200,000. The opportunity cost of the project is 12 percent which is the bank interest rate Nancy can get if she does not invest in this project. The total present value of all cash outflows is $112,551, while the total present value of all cash inflow is $185,721. What is the benefit-to-cost ratio for the project?
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What is the difference between the Monitor and Control Project Work process and the Direct and Manage Project Work process?
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You are beginning a new project. When should you use the Perform Integrated Change Control process?
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