Semaphores: Select all of the following statements that are true. The operations P (Test) and V (Signal) can be interrupted. The operations P (Test) and V (Signal) run in the operating system's user mode. The values of binary semaphores are restricted to 0 and 1 . Counting semaphores are used to manage limited resources and the corresponding access to them. Semaphores can be used to synchronize certain operations between processes. When accessing the list of a semaphore, the FIFO principle should be preferred to the LIFO principle. Semaphores: Select all of the following statements that are true. The operations P (Test) and V (Signal) can be interrupted. The operations P (Test) and V (Signal) run in the operating system's user mode. The values of binary semaphores are restricted to 0 and 1 . Counting semaphores are used to manage limited resources and the corresponding access to them. Semaphores can be used to synchronize certain operations between processes. When accessing the list of a semaphore, the FIFO principle should be preferred to the LIFO principle