Design an Azure compute solution

1. Which question comes first in the compute decision tree?

A. Lift-and-shift points to IaaS; new or modernized apps open up PaaS, containers and serverless.

2. A legacy app needs full control of the operating system and custom software installs. Which service?

C. VMs give full OS control at the cost of managing patches and configuration.

3. A web tier must scale out automatically from 2 to 20 identical VMs based on CPU. What do you use?

C. Scale sets manage identical VMs and scale them with autoscale.

4. A VM workload needs a lot of memory relative to CPU (e.g. a large in-memory cache). Which VM family?

A. Memory-optimized sizes have a high memory-to-CPU ratio.

5. Which VM family suits a dev server that is mostly idle with occasional spikes, at low cost?

A. B-series VMs accumulate CPU credits when idle and burst when needed.

6. A rendering job runs thousands of independent tasks in parallel on hundreds of VMs, then stops. Which service?

C. Batch schedules large-scale parallel and HPC jobs on pools of VMs.

7. How can you reduce the cost of interruptible Batch or VM workloads?

D. Spot capacity is heavily discounted but can be evicted.

8. A .NET web app needs deployment slots, autoscale and custom domains, without managing servers. Which service?

A. App Service is the managed web hosting platform with slots and autoscale.

9. New code must be tested in production-like settings and swapped in with no downtime. Which App Service feature?

A. Slots let you warm up a new version and swap it into production.

10. An App Service app must reach a SQL database in a VNet. What do you configure?

C. VNet integration is for outbound traffic from the app into the VNet; private endpoints are for inbound.

11. A container must run a short task on demand, without any orchestration. Simplest option?

A. ACI runs containers quickly with per-second billing and no cluster to manage.

12. In ACI, which is the group of containers that share a lifecycle, network and storage on one host?

A. Container groups are similar to Kubernetes pods.

13. A microservices platform needs full Kubernetes APIs, custom operators and fine-grained network policies. Which service?

C. AKS gives full Kubernetes control; Container Apps abstracts Kubernetes away.

14. AKS workloads must scale pods based on CPU, and the cluster must add nodes when pods can't be scheduled. Which two features?

D. HPA scales pods; the cluster autoscaler scales nodes.

15. AKS needs some GPU nodes for ML and normal nodes for web apps. How do you design this?

A. Node pools let you mix VM sizes in one cluster; system pools run system pods.

16. Which Functions hosting plan scales to zero and bills per execution, but has cold starts?

A. Consumption plans are pay-per-use; Premium keeps pre-warmed instances and adds VNet features.

17. A function must avoid cold starts and access resources in a VNet. Which plan?

C. Premium provides pre-warmed instances and VNet integration.

18. A long-running, stateful workflow (fan-out/fan-in, waiting for human approval) must be written in code. What do you use?

C. Durable Functions add orchestrations with state, checkpoints and timers.

19. A business process must connect Office 365, Salesforce and SAP with a visual designer and little code. Which service?

A. Logic Apps is a low-code workflow service with hundreds of connectors.

20. Which Logic Apps plan runs in a single-tenant environment with VNet integration and built-in connectors running in-process?

B. Standard runs on the Functions runtime in your own plan; Consumption is multi-tenant pay-per-execution.