I applied the beginning of October because I was wrapping up a coding bootcamp on the 28th of that month. A recruiter reached out to me on the 15th and unlocked their site for me so that I could play around with it. They asked that I call him back after finishing the Java section/after completion of my bootcamp. I called him back on the 3rd of November. He sent me over a packet of info to memorize. Over OOP, Java, SQL and basic front end languages. Make sure to study the entire thing and thoroughly know every definition because they expect you to answer their questions and to provide examples for each of their questions. If they ask you what the four pillars of OOP are, they expect you to list the four pillars of OOP and then to define them and finally give an example. Even though they won’t ask you to define it/give an example, they expect it and this will earn you more points to obtaining a passing grade.