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Interview question

Redis caching strategy: cache-aside vs write-through

Asked in Procter & Gamble Backend Engineer interviews

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22% candidates

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Medium

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Technical Round

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Question 2 of 4

Redis caching strategy: cache-aside vs write-through

Medium58% Candidate ReportsTECHNICALProcter & GambleBackend Engineer

Question

Redis caching strategy: cache-aside vs write-through

High-Level Approach

Cache-aside with TTL + explicit invalidation on writes; monitor hit ratio.

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