All blog posts - Page 15

Practice designing systems (e.g., URL shortener, Twitter feed). For each, start by defining key non-functional requirements like scalability, availability, latency, consistency, and cost, then discuss the trade-offs of your design choices.

Explain the different isolation levels and the concurrency issues they prevent (dirty reads, phantom reads).

Explain the difference and the role of each in the testing pyramid.

Compare and contrast gRPC and REST for inter-service communication. Discuss the role of Protocol Buffers.

Explain scenarios where unsafe code and pointers might be necessary in C#. Discuss the risks and benefits.

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