Offensive Security Certified Professional (OSCP) is a certification program that focuses on hands-on offensive information security skills. It consists of two parts: a nearly 24-hour pen testing exam, and a documentation report due 24 hours after it. OSCP is a very hands-on exam.
Before you can take the OSCP exam, you are required to take the Penetration Testing with Kali (PWK) course. Taking the course is mandatory for you to become eligible to take the OSCP. In addition to the knowledge you gain from the course, it opens doors to several career opportunities in information security.