Sanjoy BhattacharjeeSr. Project Lead| Highmark HealthLancaster, Pa, United States
Bala,
I passed ACP in 2013 on my first try. I had taken the 21 hr prep course with Agile Transformation and sat for the exam within a month. They provided some useful cheat sheets. Mike Griffith book was also very helpful. If you have time you can also review 11 reference books on PMI's site for detailed understanding of the concepts. Saving Changes...
OpenCampus is the largest website which will provide online education/training for top professional certification courses like (PMP)-Project Management Professional, (ITIL)-Information Technology and Infrastructure library, PRINCE2 Foundation and Practitioner, Six Sigma, Big Data, PMI-ACP (Agile certified professional).
This site provides Practice tests, Flash Cards, ToolKits and PDU Calculator. All these resources are free and downlodable. OpenCampus is useful for the professionals who are striving hard to boost their career.
I would recommend reading PMBOK over and over. I also bought a membership from Career Academy (http://bit.ly/2fnjzjJ) and took their online PMP training for Project management, it helped me prepare for the certification exam and it gave me the 35 PDU's that I needed. Lastly, you should take some simulator exams to gauge if you are ready or not. Saving Changes...