1. Edge Rendering advanced

    A frontend platform runs functions at the edge for personalisation but must read user data that lives in one region. Which computations genuinely belong at the edge, and when does "edge" make debugging and consistency worse?

    3 min answer verceledge-functionspersonalisationlatency
  2. Edge Rendering advanced

    A platform can render at the edge, close to the user. Which workloads benefit, and which become harder?

    2 min answer verceledgelatencystate
  3. Edge Rendering advanced

    Design personalised page delivery at the edge for a global site. What can move to the edge, and what must not?

    1 min answer edgepersonalisationlatencycaching
  4. Edge Rendering advanced

    Marketing wants personalised content on pages currently cached at the edge with a 24-hour TTL. How do you preserve performance?

    2 min answer edgecachingpersonalisation
  5. Edge Rendering advanced

    Marketing wants personalised content on pages currently cached at the edge with a 24-hour TTL. Preserve the performance.

    2 min answer cdnpersonalisationcachingcomposition
  6. Edge Security & Attestation beginner Multiple choice

    A gateway requires each device to prove it is running approved firmware. The device sends a signed measurement of its boot image, and the gateway verifies the signature against the device's registered key. Why is a valid signature not yet evidence that this device is trustworthy right now?

    2 min answer attestationtpmreplaynonce
  7. Edge Security & Attestation advanced

    An attacker has physical possession of one of your devices. What should they be able to obtain, and what protects the rest of the fleet?

    2 min answer attestationphysical-securityleast-privilegesecure-boot
  8. Edge Security & Attestation advanced

    How do you establish that code running on a remote device or accelerator is what you deployed?

    2 min answer attestationsecure-boothardware-rootintegrity
  9. Edge Security & Attestation advanced

    In June 2024 Apple described Private Cloud Compute, where a user's device will only send a request to a server node that cryptographically attests to running a specific software image, and the device checks that measurement against a public append-only transparency log before sending anything. What problem does this solve that signed code and audits do not, what does it cost, and where would copying it be a mistake?

    3 min answer appleattestationtransparency-logconfidential-computing
  10. Network & Egress Costs advanced

    A 900 TB estate has to move from one cloud to another. At list egress rates the transfer alone is quoted near $0.08 per GB and the finance director refuses. Since 2024 the largest providers waive transfer charges for customers leaving. Sequence the move and say where the waiver does not apply.

    3 min answer egressmigrationexitprocurement
  11. Network & Egress Costs advanced

    A live-streaming platform's largest infrastructure line item is data transfer. What architectural levers reduce it, and which are unavailable?

    2 min answer egresscdnpeeringbitrate
  12. Network & Egress Costs advanced

    A microservice estate spread across three availability zones has a large unexplained network charge. Explain and fix.

    2 min answer networkingfinopsarchitecture