Chapter 8

1. Synchronization; shared resource protection.
2. Priority inversion (visit the Priority inversion (how not to use semaphores) section for details)
3. MUTutual EXclusion, which refers to how access to a shared resource is controlled.
4. They limit priority inversion by ensuring high-priority tasks block as little as possible by automatically raising the priority of a low-priority task holding a mutex that the high priority task is waiting on.
5. False. Although easy to use, software timers have limitations including jitter and frequency.