Your question is Threading and Operating Systems. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain threading and other operating system concepts you have worked with.
Use practical examples from systems you have built or debugged. Cover process and thread behavior, synchronization, memory management, scheduling, interprocess communication, and at least one security or failure mode. Explain how you would verify that your design behaves correctly under contention or failure.