問67
頻出度★★☆
PCをネットワークに接続せずに単独で利用する形態を何と呼ぶか。
平成27年度 春期 ITパスポート試験 問67
テクノロジ系システム構成要素 › システムの構成
This question's explanation and your answers so far.
解説
問 67
Incorrectア
A thin client is a scheme in which most of the processing and data storage is left to the server side, and the terminal at hand is given only minimal functions. The terminal can be used only by communicating with the server, so a network connection is indispensable; this is the exact opposite of using a machine on its own without connecting it to a network.
Incorrectイ
Single processor refers to a configuration in which one computer is equipped with only one CPU (processor); it is a term about the hardware configuration inside a computer. It is used in contrast with multiprocessor, and is not about the form of use of whether or not the machine is connected to a network.
- ウ
正解 The correct answer is ウ (Standalone). Standalone refers to a form of use in which a device such as a PC is not connected to a network or to other devices, and operates completely on its own. The description in the question, using a PC on its own without connecting it to a network, states exactly the definition of this term. In a standalone environment there are fewer routes for intrusion from outside, so it is advantageous for security; on the other hand, you cannot enjoy the benefits of a network such as file and printer sharing, e-mail, and Web access, and exchanging data has to rely on external storage media such as USB memory. This form is adopted for cases such as control PCs in factories and dedicated terminals that handle confidential data.
Incorrectエ
Peer-to-peer (P2P) is a connection form in which the computers on a network are on an equal footing, each acting as both server and client to share resources. It is a type of network configuration contrasted with the client-server model, and it presupposes that the machines are connected to a network, so it does not apply.
ここがポイント
- Standalone = a form of use in which a device runs by itself without being connected to a network. The opposing concepts are the client-server model and the peer-to-peer model, both of which presuppose a network connection.
- Distinguish confusable terms by asking what each one classifies. Thin client and peer-to-peer are about forms of network use, while single processor is about CPU configuration, so they lie on different axes.
用語