New PMP Question & Answers with explanation

Which of the following statements describe the activity list?
Select three
You have been hired as a contract project manager for Grapevine Vineyards. Grapevine wants you to design an Internet wine club for its customers. One of the activities for this project is the installation and testing of several new servers. You know from past experience it takes about 16 hours per server to accomplish this task. Since you're installing 10 new servers, you estimate this activity to take 160 hours. Which of the estimating techniques have you used?
Select one
Your project's primary constraint is quality. To make certain the project team members don't feel too pressed for time and to avoid schedule risk, you decide to use which of the following activity estimating tools?
Select one
You are the project manager for Changing Tides video games. Your project is a bit ambiguous at first. It's similar in complexity and magnitude to a project that the team members worked on last year. The key stakeholder wants to be actively involved and be able to modify the requirements as the project progresses. The team is ready to define and estimate activities. Which of the following statements are true?
Select three
You are the project manager for Changing Tides video games. You are in the process of breaking the work packages into activities. Which of the following options are true?
Select two