HELP ME PREP FOR INTERVIEW NEXT WEEK

I have an interview coming up next week. Could you guys suggest sources to practice multithreading and learn the basics? I might have a systems coding round at a mid-cap startup

As someone who knows how to write "Hello World" in python I suggest you to learn different ways to write the same hello world program it helped me a lot

For learning the fundamentals, a good source might be geeksforgeeks (https://www.geeksforgeeks.org/multithreading-in-operating-system/) or to look at at a computer science textbook (or even wikipedia). GeeksForGeeks also has a guide on multithreading in Java if that is that language in which you are interviewing.

Leetcode has a few practice questions on concurrency: https://leetcode.com/tag/concurrency/

My other suggestion is to go on reddit and search the subreddit of the programming language you use for multithreading tutorials, there will likely be many posts on the subject.