Which are the top 5 universities for Master's degree in CS in Canada? Should I appear for GRE exam?

Yes, you should practice every section. It includes the AWA essay without skipping. 

Every section contributes to your final GRE score. Yes, it is true that score of AWA section will not be added to your final score. But practicing all parts ensures you achieve the maximum score.

Checking your answers allows you to find your weak spots. By writing down the specific questions you got wrong.

You can focus on studying those topics again to fix mistakes. Steadily improve your overall GRE score.

Timing your practice is crucial because the real GRE 2026 is short. GRE duration is only 1 hour and 58 minutes. 

Practice under a dedicated time frame. It will help you learn to move quickly and manage your time effectively during the actual exam.

Yes, to some extent. Both test quantitative reasoning and logical thinking. But GRE also includes Verbal and Analytical Writing sections. These sections are not part of dMAT exam to study in Germany.