Selecting the right compute option is crucial for meeting functional requirements. Which IBM Cloud service is ideal for event-driven, short-duration functions?

Question

Options

• AIBM Cloud Virtual Servers
• BIBM Cloud Kubernetes Service
• CIBM Cloud Functions
• DIBM Cloud Foundry

• A
  5% (2)
• B
  10% (4)
• C
  83% (33)
• D
  3% (1)

Explanation

IBM Cloud Functions is the correct choice because it is specifically designed for event-driven, serverless execution - you write short-lived functions that trigger in response to events (HTTP calls, message queue events, database changes, etc.) and pay only for the compute time used, making it ideal for sporadic, brief workloads.

Virtual Servers (A) are persistent VMs you provision and manage continuously - they're built for long-running workloads, not ephemeral event-driven tasks. Kubernetes Service (B) is a container orchestration platform suited for complex, stateful microservices architectures requiring fine-grained control over scaling and deployment - significant overkill for simple functions. Cloud Foundry (D) is a PaaS for deploying and managing long-running applications; it abstracts infrastructure but still expects continuously-running app instances, not short-burst event handlers.

Memory tip: Think of the name itself - Functions = small, single-purpose units of work triggered by events. If the question mentions "event-driven" or "short-duration," map it directly to the Functions (serverless) category on any cloud platform (AWS Lambda, Azure Functions, Google Cloud Functions, IBM Cloud Functions all share this pattern).

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