Which of the following cloud models require the LEAST administration and support from the organization?

Question

Options

• APlatform as a Service (PaaS)
• BInfrastructure as a Service (IaaS)
• CSoftware as a Service (SaaS)
• DSoftware Defined Networking (SDN)

• A
  3% (1)
• B
  5% (2)
• C
  90% (36)
• D
  3% (1)

Explanation

In the cloud service model spectrum, SaaS (Software as a Service) requires the least administrative burden from the customer organization. The cloud provider manages everything: infrastructure, operating systems, middleware, runtime, and the application itself. The customer only manages user accounts and data. IaaS (B) requires the customer to manage OS, middleware, runtime, and applications. PaaS (A) requires the customer to manage applications and data. SDN (D) is a network architecture model, not a cloud service model, so it is a distractor. The general rule: the higher up the stack, the less the customer manages.

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