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Difficulty: MediumCloud Architecture and Deployment Models

An enterprise aerospace contractor is modernizing its IT infrastructure across diverse cloud environments. Match each enterprise workload scenario on the left with the corresponding cloud service or deployment model on the right that best represents its architecture.

  • Custom telemetry processing engine requiring direct operating system kernel configuration and virtual machine root administrative control.Infrastructure as a Service (IaaS)
  • Customer service ticketing application maintained completely by an external vendor, where internal IT only manages user access and support workflows.Software as a Service (SaaS)
  • Event-driven backend component that executes lightweight data transformation code triggered by file uploads without persistent server instances.Function as a Service (FaaS) / Serverless
  • Shared threat intelligence platform co-owned and accessed exclusively by member defense organizations operating under identical regulatory frameworks.Community Cloud Deployment Model

Answer

The correct pairings match each workload requirement to its underlying operational model: virtual machine and OS administrative control maps to Infrastructure as a Service (IaaS); complete vendor application management maps to Software as a Service (SaaS); event-triggered serverless code execution maps to Function as a Service (FaaS); and infrastructure shared exclusively among organizations with common mission objectives maps to Community Cloud.
Each workload scenario correctly aligns with the scope of responsibility and deployment boundaries defined by the respective cloud models: IaaS grants OS-level control; SaaS abstracts application infrastructure; FaaS provides event-driven serverless execution; and Community Cloud serves a closed group of organizations with shared security requirements.

Step-by-Step Solution

1
Analyze the workload requiring OS kernel tuning and root administrative control over virtual machines.
Identify that managing the OS layer while relying on the provider for virtualization and physical hardware defines Infrastructure as a Service (IaaS).
IaaS provides raw compute infrastructure where the consumer maintains control over operating systems, storage, and deployed applications.
2
Evaluate the customer support application managed end-to-end by an external vendor.
Identify that consuming a fully hosted application while managing only application-level user access defines Software as a Service (SaaS).
SaaS abstracts all infrastructure, operating system, and application maintenance from the consumer.
3
Assess the short-lived event-driven data transformation execution.
Identify that running microservice logic on demand without provisioning infrastructure defines Function as a Service (FaaS) / Serverless.
FaaS executes ephemeral code units on demand, shifting server provisioning and scaling responsibility entirely to the cloud provider.
4
Examine the shared threat feed infrastructure restricted to specific vetted defense partner organizations.
Identify that a multi-tenant environment limited to distinct member organizations with shared regulatory needs defines a Community Cloud.
Community Cloud deployment models pool infrastructure specifically to support a specific community that shares common requirements or compliance mandates.

Key Concept

Cloud Service and Deployment Model Taxonomy
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Topics

Cloud Architecture and Deployment Models

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