Mid-level interview question
How much overlap should chunks have?
Model answer
Enough to keep whole what must stay whole. A span of L words always lands inside some chunk when overlap ≥ L − 1: for a 9-word answer, overlap 8.
The cost: more chunks to embed and store (13 instead of 7 in the course's example), and repeated text when neighbours are both retrieved.
Practise the rest
6 Chunking questions, 492 in all, each with a model answer. Free.