Education and Career Forum

I'ám studying intermediate first year . I want to do my M.S in U.S. I want to know about the available exams to get into one of the top colleges in U.S and what are the things that i have to take care of ?

The Graduate Record Examinations (GRE) is a standardized test that is an admissions requirement for many graduate schools in the United States.
The GRE General Test is offered as a computer-based, computer adaptive exam administered by selected qualified testing centers; however, paper-based exams are offered in areas of the world where computer-based testing is not available.
GRE scores are valid for 5 years.

The 'Test of English as a Foreign Language', or TOEFL is another test that is to be given.
TOEFL scores are valid for two years.

gre is score is valid for?