Which service model provides resources like servers and storage but requires the most amount of administration responsibility from the client?

The service model that provides resources such as servers and storage while requiring the most administrative responsibility from the client is Infrastructure as a Service (IaaS). In this model, clients have the most control over the infrastructure, allowing them to manage everything from the operating system to the applications running on it.

IaaS enables clients to provision and scale virtualized resources on-demand, giving them flexibility and autonomy in how they deploy and manage their IT environments. However, with this level of control comes increased responsibility for system administration, security, and maintenance. Clients must handle tasks such as configuring networks, managing firewalls, and ensuring compliance, which can demand more technical expertise and resources on their part.

In contrast, Platform as a Service (PaaS) abstracts more of the underlying infrastructure, providing development platforms and reducing the need for clients to manage the hardware and operating systems directly. Software as a Service (SaaS) goes even further by offering complete software solutions managed entirely by the service provider, thus relieving clients of almost all administrative tasks related to infrastructure and applications. Disaster Recovery as a Service (DRaaS) is a specialized model focused specifically on disaster recovery and business continuity, often built on IaaS, but it does not primarily focus on general