I think the answer to your question lies in the last part of your statement which states "During my review I target the low scoring area". It is important to target the low scoring area but it is wrong to focus on it exclusively. This is because that it is possible that you got some questions correct by simply guessing. I would therefore recommend that you target to review all the questions in the exam. That way you will reinforce your strong areas as you improve on your weak knowledge areas. I hope that helps.
I have been using prep cast simulator for over a month now, I took three practice exams 72%,73% and 72%. I am very disappointed to see my scores not going higher. I want my scores in at least 80s so I can think to scheduling the exam. During my review I target the low scoring area but then next time some other areas becomes low.
Please guide me what I am doing wrong.
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