An exam to check the readiness to study at a higher school is taken only by those applicants who do not have a document confirming the successful passing of state exams, if secondary education ends in such a way and admission to a higher school in the country of residence is possible only with a certificate (for example, in Russia, Ukraine, other countries). Available exam dates and registration here. You can find a detailed description of the exam requirements here.
IMPORTANT! Applicants who graduated from a school in the Republic of Belarus do not need to take this exam.