Quiz

2948 questions of the kind that actually get asked — in interviews, in architecture review boards, and by the person who has to run the thing at 3 AM. Every answer states the trade-off rather than the slogan, and says when the obvious choice is the wrong one.

All areas2948 Architecture Fundamentals91 Distributed Systems101 Data Architecture90 Cloud Architecture87 Networking96 API & Integration Architecture87 Reliability & Resilience99 Observability92 Performance & Capacity Engineering100 Security Architecture105 Cost Architecture & FinOps102 Business Architecture103 Architecture Communication102 Enterprise Architecture100 Legacy Modernization102 AI-Era Architecture106 Software Architecture & Engineering93 Architecture Patterns94 Architecture Decision-Making101 The Architect's Meta-Skills102 Delivery & Release Engineering103 Platform Engineering & Developer Experience102 Testing & Quality Architecture102 Data Platform Architecture98 Streaming & Real-Time Data103 Data Governance & Semantics91 Frontend & Experience Architecture101 Edge, Mobile & IoT98 Regulatory & Data Protection Architecture99 Assurance, Audit & Model Risk98

Difficulty Any beginner intermediate advanced

4 questions in TCP/IP.

Quiz

A 180 KB JSON response takes about 400 ms to reach a client 90 ms away on a connection whose handshake has just finished. The handler took 12 ms and the link has 200 Mbps spare. Measuring from the moment the request is written, what sets the floor?

A live-streaming platform ingests video from broadcasters on consumer uplinks where a single lost packet can stall the stream. Why does TCP behave badly here, and what are the options?

A nightly replication job copies 400 GB over a 10 Gbps path with an 80 ms round-trip time and about 0.1% packet loss. A single TCP stream sustains roughly 5 Mbps and the window never grows. Which change recovers most of the link?

An internal API is fast in isolation but a page that uses it takes 2 seconds for users in Asia while taking 200 ms in the origin region. The backend is equally fast for both. Diagnose and fix.