Design a freshness strategy that avoids full reindexing while keeping answers current.

Instruction: Describe how you would keep a RAG system current without paying the cost of constant full reindexing.

Context: Assesses whether the candidate can design a practical architecture and explain the main tradeoffs. Describe how you would keep a RAG system current without paying the cost of constant full reindexing.

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I would define what “current” means for each source, then measure the lag between an authoritative change and its availability to answers. A frequently updated incident notice needs a tighter contract than an annual reference manual...

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