yes
Will you prepare dinner? Is he going to prepare for the exam?
I'll prepare for entrance....
The same way you prepare for any exam: study the material you were given in your classes.
do well
See this link for details about how to prepare for DRDO exam http://examcrazy.com/Engineering/DRDO-SET.asp
yes
How_do_you_prepare_for_FTII_entrance_exam
study
Sure. There are numerous online training courses and training materials that can help you prepare for the PMP Exam.
seek a practice test
You can prepare for IITJEE Exam when in Class 11 and 12.