32.
What does the term "thread-safe" mean in the context of multi-threading?

33.
What is the primary purpose of a mutex in C++ multi-threading?

34.
Which of the following is true about a condition variable in C++ multi-threading?

35.
What is a deadlock in the context of multi-threading?

37.
What is the difference between std::mutex and std::recursive_mutex in C++ multi-threading?

39.
What is the purpose of the 'std::this_thread::sleep_for' function in C++ multi-threading?

40.
What is the primary difference between a std::mutex and a std::spinlock in C++ multi-threading?