Which statement about Infrastructure as a Service (IaaS) is true?

Which statement about Infrastructure as a Service (IaaS) is true?

• A. IaaS provides only software development tools and environments.
• B. It helps organizations avoid the cost of acquiring and managing their own physical servers and datacenter architecture.
• C. IaaS eliminates the need for any network infrastructure.
• D. IaaS requires users to own and manage physical hardware.

Answer: (B)

Infrastructure as a Service delivers virtualized computing resources over the internet, letting organizations rent servers, storage, and networking instead of buying and maintaining physical hardware. This shifts most of the capital expense and hardware management to the cloud provider, while you control the operating system, middleware, applications, and data. Because of this, the statement about avoiding the cost of acquiring and managing own physical servers and datacenter architecture is true. The other choices misstate IaaS: it does not provide only software development tools and environments (that describes PaaS); it does not eliminate any network infrastructure since you still need connectivity to access resources; and it does not require users to own physical hardware.

Infrastructure as a Service delivers virtualized computing resources over the internet, letting organizations rent servers, storage, and networking instead of buying and maintaining physical hardware. This shifts most of the capital expense and hardware management to the cloud provider, while you control the operating system, middleware, applications, and data. Because of this, the statement about avoiding the cost of acquiring and managing own physical servers and datacenter architecture is true. The other choices misstate IaaS: it does not provide only software development tools and environments (that describes PaaS); it does not eliminate any network infrastructure since you still need connectivity to access resources; and it does not require users to own physical hardware.