The GRE (Graduate Record Examinations) is a standardized test taken by students who are applying to postgraduate courses in the US and in some other parts of the world. There are actually two GRE examinations:
When one talks of the GRE, one usually means the GRE General Test which is a test of verbal and mathematical reasoning skills and analytical writing. Majortests.com has practice tests for the GRE general test, use the menu on the left to do a test.
Unlike the General test, which is unrelated to any specific undergraduate course, the GRE Subject tests are offered in eight specific subject areas and attempt to measure a student’s performance in a subject in which they have majored at undergraduate level.
The GRE is produced by the Educational Testing Service, a US-based non-profit organization. Admissions committees use the scores along with undergraduate records, recommendations and other relevant criteria in evaluating candidates for admission to graduate courses. For some courses GRE is a prerequisite; for others it may be recommended or not required. Always check the requirements of individual institutions before applying.