25. In which cloud service model, virtual machines are provisioned? Iaas

Infrastructure as a Service (IaaS).

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. Software as a Service (SaaS).

3. Infrastructure as a Service (IaaS).

An Infrastructure as a service (IaaS) provides virtualized computing resources for end users over the internet. For example, the provisioning of On-demand computing resources such as storage, network, virtual machines (VMs) etc., so as to enable the end users install various software applications or programs, database and servers.

Hence, the cloud service model in which virtual machines are provisioned is IaaS.