Hi @Goutham_Mudide
Yes, a mutex is necessary in the conditionVariable.cpp example. The mutex is used to synchronize access to the shared data (mySharedWork) and the condition variable dataReady. The unique_lock and lock_guard classes are used to lock and unlock the mutex, ensuring that only one thread can access the shared data at a time. This prevents race conditions and ensures that the data is in a consistent state when accessed.
Happy learning 
