If a process needs 18 KB and the available memory blocks are 10 KB, 20 KB, 25…
2025
If a process needs 18 KB and the available memory blocks are 10 KB, 20 KB, 25 KB, and 30 KB, which block will Best Fit select?
Answer: D. 20 KB — The Best Fit memory allocation strategy selects the smallest available memory block that can accommodate the process. Available blocks: 10 KB → Too small 20…
- A.
14 KB
- B.
25 KB
- C.
10 KB
- D.
20 KB
Attempted by 325 students.
Show answer & explanation
Correct answer: D
The Best Fit memory allocation strategy selects the smallest available memory block that can accommodate the process.
Available blocks:
10 KB → Too small
20 KB → Fits
25 KB → Fits
30 KB → Fits
Among the suitable blocks, 20 KB leaves the least unused space:
20 KB − 18 KB = 2 KB unused
25 KB − 18 KB = 7 KB unused
30 KB − 18 KB = 12 KB unused
Therefore, Best Fit selects the 20 KB block.
Loading lesson…