Quiz

2627 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 areas2627 Architecture Fundamentals81 Distributed Systems101 Data Architecture90 Cloud Architecture77 Networking86 API & Integration Architecture78 Reliability & Resilience88 Observability81 Performance & Capacity Engineering90 Security Architecture85 Cost Architecture & FinOps82 Business Architecture93 Architecture Communication91 Enterprise Architecture91 Legacy Modernization82 AI-Era Architecture86 Software Architecture & Engineering84 Architecture Patterns84 Architecture Decision-Making91 The Architect's Meta-Skills92 Delivery & Release Engineering93 Platform Engineering & Developer Experience92 Testing & Quality Architecture90 Data Platform Architecture88 Streaming & Real-Time Data93 Data Governance & Semantics81 Frontend & Experience Architecture91 Edge, Mobile & IoT88 Regulatory & Data Protection Architecture90 Assurance, Audit & Model Risk88

Difficulty Any beginner intermediate advanced

49 questions in Networking.

Quiz

A design platform's shared template suddenly goes viral, and one asset receives millions of requests within minutes. How should CDN caching, origin shielding, request collapsing, stale-while-revalidate and cache warming work together?

A media company plans a global live event and its CDN partner cannot guarantee capacity in one region. How should multi-CDN steering, origin shielding and per-region bitrate caps combine — and how do you prevent steering oscillation?

A video platform receives a viral upload generating millions of playback requests within minutes. How should edge caching, origin shielding, cache warming, request collapsing, transcoding priority and storage access interact?

After a content purge, your origin receives 400× normal traffic and falls over. The CDN is working as configured. What is missing and how do you fix it?

Design the playback path for a global video streaming service. What are the architecturally significant decisions?

Netflix places Open Connect appliances inside ISP networks and pre-positions content onto them during off-peak hours. Why is this fundamentally different from a conventional pull-through CDN, and what does it require from the content catalogue?

A globally distributed API experiences a regional networking failure. How should DNS, health checks, traffic steering, connection draining, failover and consistency interact?

Your DR plan assumes a 60-second DNS TTL gives 60-second failover. Traffic to the failed region continues for 20 minutes. Explain and design something better.

An attacker compromises one container in your cluster. What should your network controls prevent, and what can they not help with?

Security requires default-deny egress across the estate. Engineering says it will cause constant outages. How do you deliver it?

A gRPC service sits behind a layer 4 load balancer. One backend receives most of the traffic and adding instances does not help. Why?

A video platform moves from HTTP/2 over TCP to HTTP/3 over QUIC. Which specific problems does this solve for video delivery, and what new operational costs appear?