Job Interview Help!

Hi Devs! Applying for a junior front end developer job here and have been called by a recruiter. He's explained he will:

"be asking some technical questions, so it might be worth a quick bit of revision on your JavaScript knowledge and terms!"

Has anyone come across these before and what level of knowledge would I be expected to know for a junior role?

I'm going to do the test either way as it'll be great experience but a bit of prep is always good!