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Clean Cache CDN Edges
A easy SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- junior
Problem
Which CDN edge locations are serving cached content cleanly? Find edges that had a cache hit with a successful HTTP status (below 400). Return only unique edge locations.
Practice This Problem
Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a live PostgreSQL database and grades it instantly.