Flashcards Review

Use these flashcards to review the key ideas from the Indexes chapter before you take the assessment. Each card shows a term or a question on the front and a short answer on the back. Try to answer first, then flip to check. The deck covers what an index is and what it costs on writes, how a B-tree stays shallow and what a page split costs, the index types from primary and clustered through covering, full-text, hash and geospatial, the difference between B-tree and LSM storage engines, and how a secondary index behaves once the data is sharded.

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