Dear Shruthi,
I was in a similar position and hope this helps you.
I did two sets of 20 quiz (random) questions and gotten around (65-70%) than dive into Mock Exam #1 and gotten 53%. I then did ALL the PrepCast quiz questions (per knowledge area , Learning Mode), and start taking notes (I take notes per knowledge area : Scope, Cost, Quality etc. and a dedicated notes for Agile / Hybrid). I also watched Ricardo Vargas 49 Processes Videos and with help from PrepCast, I understand 49 Processes and related Project Documents (If something happens, which project document will you refer to). Now, my mock exam #2 and #3 1st attempt scores are 77% , 76%. My exam is in 25 days, but I started studying this way since 7 weeks ago.
Study all in-correct and correct terms. If you got question correct, read and make notes of the other in-correct answers, who knows maybe those in-correct answers will become the correct answers down the road.
Finally, do know the role of "Servant Leader" and "Project Manager" Mindset (aka. You don't escalate to Sponsor, You don't delay/wait but rather be pro-active, You don't make decisions before analyzing what's doing on etc.) You want to have all the information laid before you before making that judgment just like a detective.
Hope this helps.