Is it uncommon do do a TEFL course this fast?

I have a job waiting for me in Erbil Iraq. I was told I needed a TEFL Certification to supplement my main job, which will be working for a news crew.

I finished a 120 hr. online TEFL course in a week and and a half. I also took a number of tests online that check your skills, which I passed. I am just afraid to take the final exam in fear I might have missed some essential learning. Is it uncommon to get done this fast? I’ve spent 6 hrs a day on it. What does the written component of the test consist of in terms of expertise and mastery? Thank you.