Panel-ready .NET / C# questions for freshers and experienced developers. Practice at Coding Cadre in Faridabad, or Online from Delhi NCR.
First throws if the sequence is empty.
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It projects each element to a sequence and flattens the results into one sequence.
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Kestrel is the cross-platform web server built into ASP.NET Core.
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Transient creates a new instance every injection.
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It loads entities without change tracking, which is faster for read-only queries.
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A migration is a versioned change to the database schema generated from the model.
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Resolving services from a static container inside business code hides dependencies.
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A fake is a working simplified implementation.
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For string, == compares values due to operator overload.
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Dictionary gives fast key lookup.
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It removes duplicates using default equality.
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Records give value-like equality and concise immutable models.
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Fact is a single test.
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It maps an HTTP GET endpoint to a handler delegate.
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EnsureCreated builds schema from the model without migration history — fine for demos.
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Task.Run offloads CPU work to the thread pool.
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It redirects HTTP to HTTPS so cookies and tokens stay safer.
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It creates an iterator that produces values lazily.
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It serves wwwroot assets.
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An IGrouping sequence per key.
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