Hello, I bought the CertKey for Marcus Green 420 mock questions. I am working on these. I took the first 60 and got like 87%. My question is if I complete all those and 2 tests from K&B book will that be enough prep for the test. I am also taking Dan Chisholm's mock questions
Also the three mock exams that are available free From Marcus Green would they have questions from the above mentioned 420 mock questions.
If you are in the high 80's you are almost certainly ready. I have put a great deal of effort in matching the difficulty (and content) with the real exam and it should provide a good indicator of how ready you are on the real exam.
There is a small overlap between the questions on the freely available static pages and the question database. Note that the static pages are aimed at a previous version of the exam so they contain topics not on the current 1.4 version.