問82
頻出度★★☆
ネットワークに接続した複数のコンピュータで並列処理を行うことによって, 仮想的に高い処理能力をもつコンピュータとして利用する方式はどれか。
令和3年度 ITパスポート試験 問82
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 82
Incorrectア
Wearable computing refers to a usage style of small computers worn on the body, such as watches or glasses; it is not a method of pooling multiple machines to obtain high processing capability.
- イ
正解 Grid computing pools the processing power of many computers connected over a network to run tasks in parallel, treating the whole as a single virtual high-performance computer. This exactly matches the question's description of using multiple networked computers for parallel processing so that they act as one virtual computer with high processing capability, so イ is the correct answer.
Incorrectウ
Mobile computing refers to carrying devices such as smartphones or laptops and connecting to a network wherever you go; it is not a method of building a virtual high-performance machine through parallel processing.
Incorrectエ
Ubiquitous computing refers to an environment in which computers are embedded in all kinds of places and objects so they can be used anytime and anywhere; it differs from aggregating processing power through parallel processing across multiple machines.
ここがポイント
- Grid computing = a method that pools the processing power of many computers on a network and, through parallel processing, uses them virtually as a single high-performance computer.
- Distinguish it from the similar '...computing' terms (wearable / mobile / ubiquitous), which all describe usage styles and do not mean the aggregation of processing power.
用語