Language schools commonly offer specific programs to those wishing to prepare for internationally recognized language exams such as:
TOEIC (English)
TOEFL (English)
University of Cambridge ESOL examinations (English)
DELF / DALF (French)
TestDaF (German)
DELE (Spanish)
JLPT (Japanese)
KLPT (Korean)
HSK (Chinese Mandarin)
DELI/DILI/DALI (Italian)