UGC NET CSE | June 2011 | Part 2 | Question: 38

Question

A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as

• A. Semaphore
• B. Mutual exclusion
• C. Multiprogramming
• D. Message passing

Answer 1

B mutual exclusion  ( execution of a process's critical section rule out the possibility of execution of some other process's critical section )