TCS Full Stack .NET Mid

What is the N+1 query problem?

You load 50 orders, then query items once per order = 51 queries. Fix with Include / projection. ShopNest invoice list uses .Include(o => o.Items) so one SQL round-trip returns orders + lines.

TCS rounds often probe: Scenario .NET + SQL + Angular.

Themes commonly reported in public MNC interview experiences (AmbitionBox / LinkedIn / Glassdoor-style). Practice aloud; keep answers this short in the real round.

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