Fran works for an organization that wishes to Install a program on a single server and host it over the Internet for multiple users to utilize it. Which of these computing services should Fran consider to make the program available to multiple users connected to the server?

A. platform as a service (PaaS)

B. software as a service (SaaS)

с.
Infrastructure as a service (IaaS)

D.
desktop as a service (DaaS)

A. platform as a service (PaaS)

Explanation:

Cloud computing can be defined as a type of computing that requires shared computing resources such as cloud storage (data storage), servers, computer power, and software over the internet rather than local servers and hard drives.

Generally, cloud computing offers individuals and businesses a fast, effective and efficient way of providing services.

Cloud computing comprises of three (3) service models and these are;

1. Platform as a Service (PaaS).

2. Infrastructure as a Service (IaaS).

3. Software as a Service (SaaS).

The three (3) main characteristics of cloud computing are;

I. Measured service: it allows cloud service providers to monitor and measure the level of service used by various clients with respect to subscriptions.

II. Resource pooling: this allows cloud service providers to serve multiple customers or clients with services that are scalable and provisional.

III. Elasticity: this is the ability of the cloud computing service to be flexible and adaptive to the traffic or requests from the end users.

In Computer science, Platform as a Service (PaaS) refers to a type of cloud computing model in which a service provider makes available a platform that allow users (software developers) to build code (develop), run, store information in a database and manage applications over the internet.

The main purpose of a Platform as a Service (PaaS) is to provide an enabling environment for software developers to code without having to build and maintain complex infrastructure needed for the development, storage and launching of their software applications.

Simply stated, PaaS makes provision for all of the software and hardware tools required for all the stages associated with application development over the internet (web browser).

Hence, the advantage of the Platform as a Service (PaaS) is that, it avails software developers with enough convenience as well as simplicity, service availability, ease of licensing and reduced costs for the development of software applications.

These are the different types of Platform as a Service;

1. Private PaaS.

2. Public PaaS.

3. Hybrid PaaS.

4. Mobile PaaS.

5. Communications PaaS.

6. Open PaaS.

The software developers can choose any of the aforementioned types of PaaS that is suitable, effective and efficient for their applications development. Some examples of PaaS providers are Go-ogle, Microsoft, IBM, Oracle etc.

Hence, the computing service Fran should consider to make the program available to multiple users connected to the server is A. platform as a service (PaaS).

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