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Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?
Correct answer is between '200,300'. Can you explain this answer?
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Most Upvoted Answer
Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB,...
Explanation:
The best fit algorithm allocates the smallest possible partition that can accommodate the process.
Initially, all partitions are empty. The first process of size 357 KB will be allocated to the partition of size 400 KB because it is the smallest partition that can accommodate the process. After allocation, the partition of size 400 KB will have 43 KB of free space.
Next, the process of size 210 KB will be allocated. It can fit into the partition of size 250 KB because it is the smallest partition that can accommodate the process. After allocation, the partition of size 250 KB will have 40 KB of free space.
The next process is of size 468 KB. It cannot fit into any partition because all partitions have less than 468 KB of free space. So, a new partition of size 600 KB will be created and the process will be allocated to it. After allocation, the partition of size 600 KB will have 132 KB of free space.
The last process is of size 491 KB. It cannot fit into any partition because all partitions have less than 491 KB of free space. So, a new partition of size 500 KB will be created and the process will be allocated to it. After allocation, the partition of size 500 KB will have 9 KB of free space.
Partitions Not Allotted:
The partitions that are not allotted to any process are:
- 200 KB
- 300 KB
These partitions have less than 468 KB of free space, which is required for the third process.
The best fit algorithm allocates the smallest possible partition that can accommodate the process.
Initially, all partitions are empty. The first process of size 357 KB will be allocated to the partition of size 400 KB because it is the smallest partition that can accommodate the process. After allocation, the partition of size 400 KB will have 43 KB of free space.
Next, the process of size 210 KB will be allocated. It can fit into the partition of size 250 KB because it is the smallest partition that can accommodate the process. After allocation, the partition of size 250 KB will have 40 KB of free space.
The next process is of size 468 KB. It cannot fit into any partition because all partitions have less than 468 KB of free space. So, a new partition of size 600 KB will be created and the process will be allocated to it. After allocation, the partition of size 600 KB will have 132 KB of free space.
The last process is of size 491 KB. It cannot fit into any partition because all partitions have less than 491 KB of free space. So, a new partition of size 500 KB will be created and the process will be allocated to it. After allocation, the partition of size 500 KB will have 9 KB of free space.
Partitions Not Allotted:
The partitions that are not allotted to any process are:
- 200 KB
- 300 KB
These partitions have less than 468 KB of free space, which is required for the third process.
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Community Answer
Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB,...
Best fit allocates the smallest block among those that are large enough for the new process. So the memory blocks are allocated in below order.
Fixed partitions
(Only one process can reside in one partition)
Hence partitions of size 200 KB and 300 KB will not be allotted to any process.
(Only one process can reside in one partition)
Hence partitions of size 200 KB and 300 KB will not be allotted to any process.
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Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?Correct answer is between '200,300'. Can you explain this answer?
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Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?Correct answer is between '200,300'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?Correct answer is between '200,300'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider six memory partitions of size 200 KB, 400 KB, 600 KB, 500 KB, 300 KB, and 250 KB, where KB refers to kilobyte. These partitions need to be allotted to four processes of sizes 357 KB, 210 KB, 468 KB and 491 KB in that order. If the best fit algorithm is used, which partitions are NOT allotted to any process?Correct answer is between '200,300'. Can you explain this answer?.
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