Structure and objectives of the telc exam

•  the telc exam consists of two parts: a written part (lasting, depending on the level chosen, a total of 115 to 230 minutes) and an oral part, which usually takes place in pairs (two examinees), lasting up to 20 minutes (+20 minutes for preparation).
•  The examination result consists of the results of the following test modules:
  (a) listening comprehension, reading comprehension and elements of language,
  (b) Writing a letter/e-mail,
  (c) Speaking,
•  The oral part takes place on the day of the written examination,
•  The telc exam is designed to test your ability to communicate effectively in typical, practical everyday situations and covers topics related to everyday life and work,
•  the candidate who successfully passes the telc exam is awarded a certificate,
•  the candidate who fails the exam receives a score sheet.

Detailed information about the exam structure and sample English tests can be found at the link:
https://www.telc.net/en/language-examinations/certificate-exams/english/