United States: The most common standardized tests for undergraduate programs in the US are the SAT and ACT. For graduate programs, the GRE and GMAT are commonly required.
United Kingdom: The main exam required for undergraduate programs in the UK is the A-levels. For graduate programs, the most common exam is the IELTS, which assesses English proficiency.
Canada: The Canadian universities require the Test of English as a Foreign Language (TOEFL) or International English Language Testing System (IELTS) exam to assess English proficiency. For graduate programs, the GRE and GMAT are commonly required.
Australia: The International English Language Testing System (IELTS) is the most commonly required exam for undergraduate and graduate programs in Australia.
Germany: International students who want to study in Germany often need to take the Test for German as a Foreign Language (TestDaF) or the Deutsche Sprachprüfung für den Hochschulzugang (DSH), depending on the level of proficiency in the German language.
It's recommended that students check the requirements of the universities they are interested in applying to for specific entrance exam requirements.