I need an Advice regarding MCSD Examination, as I am planning to appear for examination as follows :

1) 70-100 (Analayzing Requ. and Defining Solution Architectures)

2) 70-156 (Desktop in VFP)

3) 70-155 (Distributed application in VFP)

so please guide me what all measures I have to take while giving the test. as I had studied the sample questions..

What does it stands for comments of each question and is it neccessary to write comments on questions ?

How the scores are been measured.

TIA
Regds,