Questions / Answer makes no sense...for me

Hey All,

I am studying for the exam, actually I am looking for a lot of prep questions to do as much as possible.

I did the 50Q from SkillSign and need some hel:

Q: What does the acronym CPCC stands for?
my A:          Cost Plus Percentage of Cost
correct A:   Cost Plus Percentage of Control             

Q: What is the major output of document of Scope definition
my A:          narrative scope statement
correct A:   hierachically structured WBS


Q: Point out the tools that are used as effective means in procurement planning?
myA:            Analysis for make or buy, expert judgement and selection of the type of contract
correct A:    selection of the type of contract, conference by bidders and expert judgement  >> bid conf is part of Conduct procurement!?

 

I am getting a bit confused I need some help if  I don't get the question ....

Thx in advance