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Difficulty: MediumCloud Service Models (IaaS, PaaS, SaaS)

A digital marketing agency requires an enterprise customer relationship management platform for its sales team. The agency wants the cloud provider to handle all physical hardware provisioning, operating system maintenance, database engine updates, and application code patching. The agency's internal IT staff will strictly manage user access roles and client records within the web-based administrative portal. Which cloud service model best fits this requirement?

  1. A
    Infrastructure as a Service (IaaS)
  2. B
    Platform as a Service (PaaS)
  3. Software as a Service (SaaS)Answer
  4. D
    Desktop as a Service (DaaS)

Answer

Software as a Service (SaaS)
Software as a Service (SaaS) provides ready-to-use software applications over the internet that are fully hosted, patched, and managed by the cloud vendor. The subscribing organization is responsible only for managing user access rights and application-level data.

Step-by-Step Solution

1
Analyze the management responsibility delegated to the cloud provider in the scenario.
The provider handles hardware, operating system updates, database engine management, and application code maintenance.
Identifying which layers of the technology stack are maintained by the vendor determines the cloud model boundary.
2
Analyze the customer's remaining operational responsibilities.
The customer only manages user permission roles and client data entry inside a web application.
When customer responsibility is limited strictly to data management and account settings within a ready-to-use software suite, no infrastructure or development framework management is required.
3
Correlate these management boundaries with the standard cloud service models.
Software as a Service (SaaS) represents the model where complete end-user applications are delivered over the internet and maintained by the vendor.
SaaS abstracts all underlying infrastructure, operating systems, and application runtimes from the end user.

Key Concept

Cloud Service Models and Shared Responsibility Boundaries
Estimated Time:1m 15s
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Topics

Cloud Service Models (IaaS, PaaS, SaaS)

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