1. EA Metrics advanced

    An enterprise architecture function reports on standards compliance and diagram coverage. Leadership cannot tell whether it is adding value. What should it measure instead?

    2 min answer delhiveryea-metricsoutcomesvalue
  2. EA Metrics advanced

    How would you demonstrate that an architecture practice is worth its cost?

    2 min answer metricsvalueoutcomesportfolio
  3. EA Metrics intermediate

    Leadership wants to buy an enterprise architecture repository tool. How do you advise?

    1 min answer enterprise-architecturetoolinggovernance
  4. EA Metrics advanced Multiple choice

    Shared platform costs are £4.8M a year and currently split evenly across 30 engineering teams. Teams complain the number is arbitrary, nobody reduces usage, and two teams generate most of the load. Which allocation model should replace it?

    3 min answer chargebackfinopsplatform-costsincentives
  5. Edge Compute Topologies advanced Multiple choice

    A content and application platform must choose between many small points of presence and fewer larger regional sites. What trades off?

    1 min answer edgetopologycachinglatency
  6. Edge Compute Topologies intermediate

    A content platform must decide what runs at the edge, in a region, and centrally. How should the topology be reasoned about?

    2 min answer sharechattopologyedgeregional
  7. Edge Compute Topologies intermediate Multiple choice

    A ride-hailing platform in the mould of Grab operates in eight cities across four countries. Matching a rider to a driver needs the live positions of nearby drivers and must answer in under 500 ms. Payments, identity and analytics are central. Where should the matching engine run?

    2 min answer grabgeospatialplacementlatency
  8. Edge Compute Topologies advanced

    A team proposes moving an API to edge functions to reduce latency for international users. What do you check before agreeing?

    2 min answer edgelatencyarchitecturedata
  9. Edge Computing beginner Multiple choice

    A team moves request signing from one region to an edge platform. p50 falls from 140 ms to 35 ms and p99 rises from 220 ms to 900 ms. Error rate is unchanged and the platform reports no throttling. Which mechanism most likely explains the tail?

    3 min answer edge-computingdata-gravitycold-startcache
  10. Edge Computing advanced

    A team proposes moving personalisation to edge functions to cut latency. When does that work and when does it backfire?

    2 min answer edgelatencystatecaching
  11. Edge Computing advanced

    An e-commerce product page has cacheable content, a personalised recommendation strip, a logged-in header and a live stock indicator. What runs at the edge and where does each piece of state live?

    3 min answer edgecloudflarecachingpersonalisation
  12. Edge Computing advanced

    Walk me through this one. An executive has read that a delivery network runs more than four thousand points of presence and wants product personalisation moved to the edge this quarter. You have fifteen minutes with them. What do you establish and what do you refuse?

    3 min answer edge-computingakamaidata-residencystakeholder-management