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31+ curated questions with the same answer shape every time: quick recap, deep dive, pitfalls, and follow-ups. Coverage includes architectural styles, clean architecture, hexagonal architecture, domain driven design, and more.
Suggested path
Topics follow a teaching order. Each answer ends with a clear Next question control so you can move forward without hunting the list.
Architecture-pattern interviews test whether you can choose a structure and defend it. This module is an elevation arc: it opens with architectural styles (the landscape — monolith, layered, microservices, event-driven), then the two most-asked patterns — clean architecture and hexagonal (ports & adapters) — then domain-driven design (the strategic patterns: bounded contexts, aggregates). Microservices patterns follow at the applied tier, then the comparison canon, then scenario-based design questions. It closes with CQRS and event sourcing — the advanced patterns that separate architects from developers.
Full catalog
Topics are ordered for learning. Within each topic, rows are numbered 1–31 globally so you always know where you are. Collapse topics if you want a lighter view — use Expand all when you need the full list again.
Numbers 1–31 follow the order we recommend — click any row to open the full answer, or use the sticky Next link at the bottom of each page to go Q1 → Q31.
Interviewers rarely ask Architecture Patterns & Principles in isolation. These are the modules that most often come up in the same loop.