Assertion (A): Deadlock prevention strategies are generally less restrictive on resource utilization compared to Deadlock avoidance algorithms.
Reason (R): Deadlock prevention eliminates one of Coffman's conditions by structurally limiting how resources can be requested, which lowers overall efficiency.
Analysis of Assertion (A):
Deadlock Prevention prevents deadlocks by invalidating at least one of the four necessary Coffman conditions (Mutual Exclusion, Hold and Wait, No Preemption, Circular Wait). This imposes static and severe restrictions on process execution and resource requests, leading to low resource utilization and lower system throughput.
Deadlock Avoidance (e.g., Banker's Algorithm) dynamically checks resource-allocation states to ensure that a circular wait condition can never exist. It allows processes more freedom to request resources as long as the system remains in a safe state, making it less restrictive on resource utilization than prevention methods.
Therefore, saying prevention is less restrictive than avoidance is FALSE.
Analysis of Reason (R):
Deadlock prevention works by removing at least one of Coffman's four conditions through structural constraints (like requesting all resources at once or enforcing a strict ordering on resources).
These rigid constraints reduce overall system efficiency and lead to resource underutilization.
Therefore, Reason (R) is TRUE.
Conclusion:
Assertion (A) is false, but Reason (R) is true.