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------------------------------------------------ Match the service delivery model with the appropriate description.

1. Infrastructure as a Service (IaaS)
2. Software as a Service (SaaS)
3. Platform as a Service (PaaS)

A. Software development framework and components are delivered over the network on a pay-as-you-go basis.
B. An application service is delivered over the network on a subscription basis.
C. Servers and virtual machines, network, and storage are delivered over the network on a pay-as-you-go basis.

The matching of service delivery models to the descriptions is IaaS with 'C' for infrastructure-related services, SaaS with 'B' for application subscriptions, and PaaS with 'A' for software development platforms.

Explanation:

The student has asked to match the following service delivery models with the appropriate descriptions:

Infrastructure as a Service (IaaS)
Software as a Service (SaaS)
Platform as a Service (PaaS)

And the descriptions are:

Software development framework and components are delivered over the network on a pay-as-you-go basis.
An application service is delivered over the network on a subscription basis.
Servers and virtual machines, network, and storage are delivered over the network on a pay-as-you-go basis.

The matches are as follows:

IaaS matches with description 'C' because it offers access to servers and virtual machines, including network and storage resources over the network on a pay-as-you-go basis.
SaaS matches with description 'B' because it involves delivering application services over the network, commonly on a subscription model.
PaaS matches with description 'A' as it provides a software development platform and related components over the internet, also on a pay-as-you-go basis.

Cloud services simplify IT management and operations, offering scalability and flexibility for businesses. They provide an alternative to self-managed solutions often at a lower overall cost. Furthermore, they offer the ability to scale services to meet demand and can be seen as a move towards a service-oriented architecture (SOA), where applications integrate and use services from each other.