ITPEC IP October 2024 Question 96

Which of the following is “cloud computing”?

a)One of the Internet communication protocolsb)One of the service models for providing computer resourcesc)One of the software development methods for flexibly supporting changes in the specificationd)One of the electronic data exchange standards for electronic commercial transactions

Explanation

One of the service models for providing computer resources — cloud computing supplies IT resources as a service over the network.

With cloud computing, users obtain servers, storage, platforms or applications from a provider over the Internet on demand, scale them up or down and usually pay for what they use, without owning the equipment. By what is provided, the service models are SaaS (software), PaaS (platform) and IaaS (infrastructure).

Answer (b)

Why not others:

•(a) — cloud services are reached through Internet protocols such as HTTP and TCP/IP, but cloud computing is not itself a protocol
•(c) — a development method that flexibly handles changes in the specification is agile development
•(d) — a standard for exchanging electronic business documents between companies is EDI

Key rule: Cloud computing is a way of providing and using IT resources as services; SaaS, PaaS and IaaS name the layer that is provided.

System Strategy · AI-written, may contain errors

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