Dell-EMC
D-ISM-FN-01 · Question #123
What is an accurate statement about variable prefetching?
The correct answer is D. Storage system prefetches many non-contiguous blocks of data, with varied sizes, from cache. See the full explanation below for the reasoning.
Storage System Environment
Question
What is an accurate statement about variable prefetching?
Options
- AMany blocks that have recently been written to storage by the compute system are retrieved and
- BMany non-contiguous blocks that are not currently required can be retrieved from cache in
- CStorage system prefetches data in multiples of the original I/O request size from the compute
- DStorage system prefetches many non-contiguous blocks of data, with varied sizes, from cache.
How the community answered
(54 responses)- A4% (2)
- B13% (7)
- C6% (3)
- D78% (42)
Topics
#variable prefetching#non-contiguous blocks#cache management#I/O optimization
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