Do not worry about the selection process. It is not difficult at all. You will have a basic Maths and English test. There is no need to revise for it. After that you will have some compute based exams. Once again no need to practise for it as you will be guided before you do the exam for real. Not difficult. After that you will have an interview and you will be told the next day if u are successful or not.
The cost of 440k dhs does not include any food, housing or transport. AAA provides some housing some 1 min drive away but it costs about 1900 dhs per month. Not lived there but i have seen the flats and tbh it is good value for money.