Top 5 Slowest DNS Lookups
A easy SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
We are investigating DNS performance. Find the top 5 unique domain and record type pairs by their maximum latency. If pairs tie at the cutoff, include all of them. Rank from longest to shortest.
Summary
Five DNS lookups that took too long.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision