{CodeRoyale}
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Multiple ChoiceIntermediate 30s

Cache invalidation

Choose the best answer for: keeping cache fresh
Options
  1. 1Invalidate every entry at once regardless of whether data changed
  2. 2Delete or update cached data when source data changes
  3. 3Never invalidate; cached values stay trusted permanently forever
  4. 4Invalidate only on a fixed timer regardless of any source change
fullstackintermediate

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