UGC NET CS 2018-DEC Paper-2
October 5, 2023Teaching Aptitude
October 5, 2023UGC NET CS 2018-DEC Paper-2
| Question 13 |
Suppose P,Q and R are co-operating processes satisfying Mutual Exclusion condition. Then if the process Q is executing in its critical section then
| ‘P’ executes in critical section | |
| ‘R’ executes in critical section | |
| Neither ‘P’ nor ‘Q’ executes in their critical section | |
| Both ‘P’ and ‘R’ executes in critical section |
Question 13 Explanation:
● A mutual exclusion (mutex) is a program object that prevents simultaneous access to a shared resource.
● This concept is used in concurrent programming with a critical section, a piece of code in which processes or threads access a shared resource.
● Only one thread owns the mutex at a time, thus a mutex with a unique name is created when a program starts.
● When a thread holds a resource, it has to lock the mutex from other threads to prevent concurrent access of the resource
● In the question, Three process are cooperating processes and satisfying mutual exclusion condition. If process Q is executing in its critical section means remaining two processes in wait stating and they won’t enter into critical section.
● This concept is used in concurrent programming with a critical section, a piece of code in which processes or threads access a shared resource.
● Only one thread owns the mutex at a time, thus a mutex with a unique name is created when a program starts.
● When a thread holds a resource, it has to lock the mutex from other threads to prevent concurrent access of the resource
● In the question, Three process are cooperating processes and satisfying mutual exclusion condition. If process Q is executing in its critical section means remaining two processes in wait stating and they won’t enter into critical section.
Correct Answer: C
Question 13 Explanation:
● A mutual exclusion (mutex) is a program object that prevents simultaneous access to a shared resource.
● This concept is used in concurrent programming with a critical section, a piece of code in which processes or threads access a shared resource.
● Only one thread owns the mutex at a time, thus a mutex with a unique name is created when a program starts.
● When a thread holds a resource, it has to lock the mutex from other threads to prevent concurrent access of the resource
● In the question, Three process are cooperating processes and satisfying mutual exclusion condition. If process Q is executing in its critical section means remaining two processes in wait stating and they won’t enter into critical section.
● This concept is used in concurrent programming with a critical section, a piece of code in which processes or threads access a shared resource.
● Only one thread owns the mutex at a time, thus a mutex with a unique name is created when a program starts.
● When a thread holds a resource, it has to lock the mutex from other threads to prevent concurrent access of the resource
● In the question, Three process are cooperating processes and satisfying mutual exclusion condition. If process Q is executing in its critical section means remaining two processes in wait stating and they won’t enter into critical section.
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