* GRE (Graduate Record Examinations): This is primarily required for admission to graduate programs (Master's and PhD) in many universities, particularly in the US and Canada. It's not needed for undergraduate programs or most jobs.
* TOEFL (Test of English as a Foreign Language): This is required for non-native English speakers applying to universities or other programs where English is the language of instruction. It demonstrates English proficiency.
Therefore:
* You might need the GRE only if applying to a graduate program where English is the native language and you're already a proficient English speaker.
* You might need the TOEFL only if applying to a university (graduate or undergraduate) where English is the language of instruction, but your native language is not English.
* You might need both if applying to a graduate program where English is the language of instruction and you're a non-native English speaker.
* You might need neither if applying to an undergraduate program in your native language or applying for a job that doesn't require these tests.
Always check the specific requirements of the program or institution you are applying to. Their websites will clearly state what standardized tests, if any, are needed for admission.