Practice Priority-based Allocation (21.3.5) - Page Frame Allocation and Thrashing

Practice: Priority-Based Allocation

Lesson 21.3.5Page Frame Allocation and Thrashing

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9 questions

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6 sample questions

Question 1.
What does fixed allocation mean in memory management?
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Think about equal distribution.
Question 2.
What is the main reason for proportional allocation?
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Consider size-based distribution.
3Question 3.
What is the primary goal of proportional allocation?
- To prioritize all processes equally
- To allocate more frames to larger processes
- To prevent thrashing
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Consider how memory should match process demands.
4Question 4.
True or False: Local allocation allows a process to replace frames from any other process allocated memory.
- True
- False
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Think about frame access restrictions.
Question 5.
Design a memory allocation scheme for a hypothetical system with three processes of sizes 10, 50, and 100 frames, respectively. How would you allocate the frames among these processes using both proportional and fixed allocation methods?
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Consider the total size and how to distribute accordingly.
Question 6.
A system is experiencing thrashing. Identify steps that can be taken to alleviate the issue based on memory management principles discussed.
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Focus on how to balance load across processes to reduce page-faults.

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