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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

34 questions in Networking.

  1. Layer 4 vs Layer 7 intermediate

    A service has widely varying request costs — most complete in 10 ms, some take 5 s. Under round robin some instances are overwhelmed while others idle. What do you change?

    2 min answer load-balancingalgorithmshealth-checks
  2. NAT & Egress intermediate Multiple choice

    A batch job's networking costs are three times its compute cost. It reads several terabytes from object storage. What is happening?

    2 min answer nategresscostprivate-endpoints
  3. NAT & Egress intermediate

    An observability platform's cloud bill shows an unexpectedly large data-processing charge from NAT gateways. What is happening, and what are the architectural fixes?

    2 min answer nategresscostvpc-endpoints
  4. Network Performance intermediate

    A managed database platform sees connection exhaustion when customers run serverless functions against it. Why does this happen and what is the fix?

    2 min answer supabaseconnection-poolingserverlessdatabase
  5. Networking intermediate

    A user in Mumbai types your URL and presses enter. Walk me through every hop until the HTML reaches their browser. Where would you look first if the page were slow?

    2 min answer networkingdnstlscdn
  6. Networking intermediate

    Design the network layout for a three-tier application in one cloud region. What are the decisions you cannot easily change later?

    2 min answer vpcsubnetssegmentationcloud
  7. Private Connectivity intermediate

    A logistics platform must integrate with warehouse systems, carrier networks and enterprise customers over private connectivity. What determines the choice between VPN, dedicated interconnect and public endpoints with allow-listing?

    2 min answer delhiveryvpninterconnectintegration
  8. Private Connectivity intermediate

    A regulated client requires that no traffic between their data centre and your SaaS platform traverses the public internet. Design the connectivity and justify the cost.

    2 min answer private-linkdirect-connectvpnhybrid
  9. Private Connectivity intermediate Multiple choice

    An enterprise needs its cloud workloads to reach on-premises databases with predictable latency and without traversing the public internet. What are the options and what do they actually guarantee?

    2 min answer private-connectivitydirect-connectvpnhybrid
  10. Reverse Proxies intermediate

    A page is identical for all users except a small personalised header. How do you cache it?

    2 min answer cachingpersonalisationedgenyt
  11. Service Mesh Networking intermediate

    A multi-product SaaS company with about forty services in three languages is evaluating a service mesh. Is it justified, and what would you check first?

    2 min answer service-meshcomplexitymtlsobservability
  12. Subnetting intermediate Multiple choice

    A new cluster must schedule 60000 pods. The only free allocation inside the corporate 10.0.0.0/8 is one /20, and the network team will not issue more. The platform team requires per-pod firewall rules and flow logs from the cloud provider's own networking. Which address strategy fits?

    2 min answer subnettingkubernetescidraddress-exhaustion