GRE

Not usually. Most German universities do not require the GRE. However, it may be optional or recommended for some competitive programs. So, candidates are advised to check the admission guidelines for their respective universities for a better idea on GRE requirements. 

These are some popular coaching institutes for online GRE preparation. GRE fee of these institutes vary based on type of educational services they offer.

1. The Princeton Review
2. Kaplan
3. ETS Official Prep

The limitations of GRE online coaching include less personalized attention compared to in-person classes. Other than this, you need to be self motivated and there will be no peer interaction. Also, you need to take care of your device and working internet connectivity that can disrupt learning.

You should book your slot at least 2 to 3 months in advance. Seats vanish in September. If you wait, you lose. You might get a bad time like 8 AM. Or a center far away. Don't be lazy.

The University of Cincinnati requires a GRE score of 310 total on the quantitative and verbal sections for most of the Graduate courses. The courses that require GRE are Artificial Intelligence, Architectural Engineering, Aerospace Engineering and Engineering Mechanics, Computer Science, Chemical Engineering, Mechanical Engineering, etc. Also, for some of the programs, GRE score submission is optional. 

Lehigh does not ask for GRE scores for admissions to its courses, the institute instead considers the student's college & school-level academic scores along with demonstration of proficiency in the English language.

The institute does take into account valid SAT & ACT scores as part of a student's application, however, submission of either test score is a completely optional requirement.  

To take admission in North Dakota State University MBA program, it is mandatory to submit standardized test scores like GMAT and GRE. These scores support a candidate's application along with the academic requirements and document requirements. It is always advisable to refer to programme specific requirements mentioned in the official website. Applicants are also advised to maintain a GPA of 3.0 or above (on a scale of 4.0) to increase the chances of their acceptance. Required documents for MBA programme include statement of purpose, CV/resume, work experience, letters of recommendations and academic records.