Skip to main content
System
Design
Problems
Concepts
Exercises
Quiz
Post-mortems
Comparisons
Mocks
Study Plan
Search
⌘K
← All quizzes
Quiz · 13 questions
Databases
Indexing, sharding, replication, consistency, SQL vs NoSQL.
Question 1 / 13
A query needs to return rows ordered by (created_at DESC). Which index is best?
A
Hash index on created_at
B
B-tree on created_at with DESC order
C
Bloom filter on created_at
D
No index — ORDER BY is always fast