Hard Design: News Feed (Facebook/Twitter)

Why is cursor-based pagination preferred over offset-based for news feeds?

— Tests your understanding of this concept.

Answer Options

A Cursors are faster to implement

B Offset pagination becomes unstable when new items are inserted at the top

C Cursors support bidirectional scrolling

D Offset requires more database storage

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This question is from the Design: News Feed (Facebook/Twitter) topic (System Design Cases).

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