Primary Resource: Rita - Never opened PMBok
Practice question:
1. Rita end of Chapter questions
2. Free online tests
a. (PM Prepcast which allow 3 tests, 20 question each).
b. PM Prepcast 120 free questions.
c. There's also another free resource that offers full length test but it's very easy, not very helpful. It can boost your confidence though.

Strategy:
1. Read Rita book once and highlighted important text. Took the end of chapter tests right away.
2. Read the highlighted text (step 1) and in the margin of the book wrote down the important points.
3. Read the important points completed in step 2.
4. Remembered the Rita Process chart - There's an online website where one can practice the process chart.

Total time: 4 weeks of preparation

Past work experience: Project engineer with 7 years of experience. Wasn't much helpful meh!

Good luck!