What is the next step the algorithm performs verbally?
easy🧠🧾 Concept Trace Q3 of Q15
Operating Systems - Banker's Algorithm - Safe State & Resource Allocation
Suppose a system has 3 resource types and 3 processes. Process P1 requests resources that do not exceed its declared maximum, and the Banker's Algorithm simulates granting it. What is the next step the algorithm performs verbally?
AIncrease the total system resources to fulfill the request and avoid deadlock.
BImmediately allocate the resources to P1 since the request is within its maximum claim.
CCheck if the available resources after allocation are sufficient to satisfy the needs of all other processes in some order.
DReject the request if any other process currently holds resources, regardless of safe state.
After simulating allocation, the algorithm checks if the system can satisfy all processes' remaining needs in some sequence.
Step 2: Analyze options
Check if the available resources after allocation are sufficient to satisfy the needs of all other processes in some order correctly describes this safety check. Immediately allocate the resources to P1 since the request is within its maximum claim skips safety verification. Reject the request if any other process currently holds resources, regardless of safe state is incorrect because holding resources by others doesn't automatically reject requests. Increase the total system resources to fulfill the request and avoid deadlock is invalid as system resources are fixed.
Final Answer:
Option C -> Option C
Quick Check:
Safety check ensures no deadlock after allocation [OK]
Quick Trick:Safety check simulates satisfying all processes after allocation [OK]
Common Mistakes:
MISTAKES
Allocating without safety check
Rejecting requests due to current resource holders
Assuming system resources can be increased dynamically
Trap Explanation:
PITFALL
Candidates often confuse immediate allocation with safety verification or think system resources can be expanded.
Interviewer Note:
CONTEXT
Tests verbal tracing of Banker's Algorithm's safety verification step.
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