Domain Name System¶
Interview Time: 60-90 min | Difficulty: Advanced
Key Focus: Hierarchical resolution, recursive queries, caching, DNSSEC, performance
Step 1: Functional & Non-Functional Requirements¶
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Step 2: API Design, Data Model & High-Level Design¶
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Step 3: Concurrency, Consistency & Scalability¶
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Step 4: Persistence Layer, Caching & Monitoring¶
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⚡ Quick Reference Cheat Sheet¶
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🎯 Interview Summary (5 Minutes)¶
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