FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Answer: B. Explanation: In Cloud Computing, managed IT services and grid computing are based on the concept of Utility Computing.

Detailed explanation-2: -Utility computing is a model in which computing resources are provided to the customer based on specific demand.

Detailed explanation-3: -It is based on a pay-per-use model (pay as you go model). It offers computational resources on demand as a metered service. Cloud computing, grid computing, and managed IT services are based on this concept.

Detailed explanation-4: -The example of utility computing are: CPU time. Hard drive space and its access time. Virtual and physical memory.

Detailed explanation-5: -Utility computing is a subset of cloud computing, allowing users to scale up and down based on their needs. Clients, users, or businesses acquire amenities such as data storage space, computing capabilities, applications services, virtual servers, or even hardware rentals such as CPUs, monitors, and input devices.