問9
頻出度★☆☆
“クラウドコンピューティング”に関する記述として, 適切なものはどれか。
平成30年度 秋期 ITパスポート試験 問9
ストラテジ系システム戦略 › ソリューションビジネス
This question's explanation and your answers so far.
解説
問 9
Incorrectア
“A communication protocol for the Internet” describes rules (conventions) for carrying out communication between devices, such as TCP/IP or HTTP; it is not a description of cloud computing, which provides resources as a service.
- イ
正解 Cloud computing refers to a form (a service model) in which computer resources such as servers, storage, and software are made available for use as a service over a network like the Internet, rather than being owned in-house. Users rent and use only as many resources as they need, and pay according to how much they use. Therefore, option イ, which describes it as “A service model for providing computing resources,” is appropriate. Delivery categories such as IaaS, PaaS, and SaaS are concrete examples of this service model.
Incorrectウ
“A software development method that can flexibly respond to specification changes” describes a software development methodology such as agile development, which advances work in short iterations; it is a different concept from cloud computing, which is a way of using computer resources.
Incorrectエ
“A standard for electronic data interchange used in e-commerce and similar contexts” describes EDI (Electronic Data Interchange), by which businesses exchange transaction data; it is not a description of cloud computing.
ここがポイント
- Cloud computing is a form of providing and using computer resources (servers, storage, software, etc.) as a service over a network; representative examples include IaaS, PaaS, and SaaS.
- Distinguishing it from confusingly similar terms: communication protocols (communication conventions), agile development (a development method), and EDI (an electronic data interchange standard) are each a different concept.
用語