CLOUD COMPUTING

Detailed explanation-1: -Explanation: IaaS has the least levels of integrated functionality and the lowest levels of integrated security, and SaaS has the most.

Detailed explanation-2: -The last of the three cloud service models, SaaS, is arguably the most restrictive, meaning you as the consumer have the minimum level of control over everything from servers to applications. In this model, the consumer is responsible only for the people using the service and the data they create.

Detailed explanation-3: -The basic and most important IaaS security principle is to protect access by giving users only the necessary permissions, to audit accounts (especially privileged access), and delete inactive ones. For IaaS, this refers to access to the OS and the applications installed on it.

Detailed explanation-4: -Best practice: Secure privileged access. Detail: Use a least privilege approach and built-in Azure roles to enable users to access and set up VMs: Virtual Machine Contributor: Can manage VMs, but not the virtual network or storage account to which they are connected.

Detailed explanation-5: -Answer: A) EC2 is the IaaS service provider.