Multiple ChoiceBeginner 45s
LRU vs LFU eviction
A key is requested extremely frequently for a short burst then never again. Which eviction policy retains it longest?
Options
- 1LRU, because it is currently the most recently used
- 2FIFO, because insertion order is preserved
- 3Random, because probabilistic eviction is uniform
- 4LFU, because it has the highest historical access count
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