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Indexing, B-Trees & Query Optimization

Indexing, B-Trees & Query Optimization

dbmsindexingb-tree
1 sections
dbms, indexing

MCQ — Indexing & Optimization

Q1Easy

What is the primary purpose of a database index?

Q2Medium

Which type of index physically reorders the table data?

Q3Medium

B-Tree indexes are best suited for:

Q4Medium

Which index type is fastest for exact-match (equality) lookups?

Q5Hard

What is a covering index?

Q6Easy

Which is a downside of having too many indexes on a table?

Q7Easy

What is the role of a query optimizer?

Q8Easy

Which command shows the execution plan of a query?

Q9Hard

A composite index on (A, B, C) is useful for queries filtering on:

Q10Medium

Which is NOT typically a reason to use a database view?

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