Which data structure is used by map
Which data structure is used by map is a DSA topic. In plain words you use it for name → phone in a diary. Don’t start with a slogan — start with that picture.
Smallest example: key % size + collision plan. Type it, run it, and say what you see. If you can do that from memory, you know Which data structure is used by map.
From the example next to this theory — Which data structure is used by map: dry-run [4, 1, 3].
Trap — bad hash → pile-up. Fix that before you talk about advanced DSA.
Viva — what is Which data structure is used by map? Then show key % size + collision plan. Then name the trap.
Exam tip
What is Which data structure is used by map? Show this: key % size + collision plan. Trap: bad hash → pile-up.