New PMP Question & Answers with explanation

Which of the following is not a characteristic of a project?
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You are currently assigned to work on a project involving the release of a new pharmaceutical drug. The vice president (VP) of strategic partnerships, who to date has not been a part of the project, asked to see the work performance data. This raises a red flag for the following reason:
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Match the leadership style with its description.
Matching
Leadership Styles
Type Description
Servant Leader
Focuses on management by exception; rewards based on goals, feedback, and accomplishments
Transactional
Uses a combination of transactional, transformational, and charismatic
Charismatic
Enthusiastic, high-energy, and able to inspire others
Interactional
Allows the team to make their own decisions and establish their own goals
Laissez-faire
Puts others first and demonstrates commitment to serve
The project manager had received two complaints that three project team members were arguing over the interpretation of schedule analysis results conducted the previous day. The project manager had waited to see whether they would work it out among themselves, but another two complaints were made that the situation was affecting the work of others. What should the project manager do?
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If activity A has a duration of 10 days and activity B has a duration of 7 days with a 2- day lag, what is the overall duration of both activities combined, given a start-to-start relationship with an assumption that both activities will begin as soon as possible?
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