___________ are used for signaling among processes and can be readily used to enforce a mutual exclusion discipline.

Related MCQs

• Mutual exclusion implies that ____________.
• The _______________ operation similarly computes an element-wise reduction of vectors, but this time leaves the result scattered among the processes.
• Let S and Q be two semaphores initialized to 1, where P0 and P1 processes the following statements wait(S);wait(Q); ---; signal(S);signal(Q) and wait(Q); wait(S);---;signal(Q);signal(S); respectively. The above situation depicts a _________.
• If a process is executing in its critical section, then no other processes can be executing in their critical section. This condition is called ___________.
• A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called:
• The routine ________________ combines data from all processes by adding them in this case and returning the result to a single process.
• A minimum of _____ variable(s) is/are required to be shared between processes to solve the critical section problem.
• A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units, then _____________
• ____________ is the ability of multiple processes to co-ordinate their activities by exchange of information.
• A collective communication in which data belonging to a single process is sent to all of the processes in the communicator is called a ________________.