問6
頻出度★☆☆
ハウジングサービスについて説明したものはどれか。
平成21年度 秋期 ITパスポート試験 問6
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 6
Incorrectア
A service that offers business software over the internet describes SaaS (ASP / cloud application delivery). What it provides is software functionality, which is different from colocation (housing), where space for installing equipment is rented out.
Incorrectイ
A service that takes on the planning, development, operation, management, and maintenance of another company's information system describes systems integration / outsourcing. It takes over the work itself, not the provision of a place to install equipment as colocation (housing) does.
Incorrectウ
A service in which the provider rents out servers or communication equipment installed in, and owned by, its own building describes a hosting service (rental server). This is the classic pairing that is easily confused with colocation (housing); the difference is that here the equipment is owned by the provider.
- エ
正解 A colocation service (housing) is a service in which the user places the communication equipment or servers that the user owns into a rack inside the service provider's building (a data center), where they are installed and operated. The provider supplies the installation environment: a sturdy building, stable power, air conditioning, high-speed communication lines, and entry/exit control, and it can also operate the equipment on the user's behalf when needed. The key characteristic is that ownership of the equipment stays with the user. Choice エ, «A service in which the service provider installs and operates the user's communication equipment or servers within its own building», is exactly this definition, so it is the correct answer.
ここがポイント
- Colocation (housing) = the user places their own equipment in the provider's facility (the user owns the equipment; the provider supplies the space, power, air conditioning, and lines). It is also called colocation.
- The key is telling it apart from hosting: hosting rents out equipment owned by the provider, while housing lets the user place equipment they own. Remember it by comparing all three with SaaS (software delivery) and outsourcing (taking over the work).
用語