問12
頻出度★★☆
スマートフォンに内蔵された非接触型 ICチップと外部の RFID リーダーによって, 実現しているサービスの事例だけを全て挙げたものはどれか。 a 移動中の通話の際に基地局を自動的に切り替えて通話を保持する。 b 駅の自動改札を通過する際の定期券として利用する。 c 海外でも国内と同じ電子メールなどのサービスを利用する。 d 決済手続情報を得るために QR コードを読み込む。
令和5年度 ITパスポート試験 問12
ストラテジ系ビジネスインダストリ › ビジネスシステム
This question's explanation and your answers so far.
解説
問 12
Incorrectア
It includes all of a, b, c, and d, but only b is realized by RFID. a is base-station switching (handover) in the mobile phone network, c is international roaming, and d is QR-code reading, none of which are functions of a contactless IC/RFID, so it is wrong.
Incorrectイ
It lists a, b, and d, but a is the handover function of the mobile communication network, and d is a QR code read optically by a camera; neither is a service realized by a contactless IC chip and an RFID reader.
- ウ
正解 A contactless IC chip and an RFID reader form a technology that reads and writes the information inside the IC chip over short-range wireless communication of only a few centimeters (short-range wireless communication such as FeliCa). The only service realized by this mechanism is b, using it as a commuter pass when passing through an automatic ticket gate at a station. The RFID reader built into the gate communicates instantly with the IC chip in the smartphone to process the boarding information. Since a, c, and d are all separate technologies from RFID, choice ウ, which lists only b, is correct.
Incorrectエ
Although b is correct, it also includes d. The QR code in d is processed by a camera (optical reading), which is a separate technology from the RFID that uses short-range wireless communication, so this combination with d added is wrong.
ここがポイント
- A contactless IC chip plus an RFID reader is short-range wireless communication of a few centimeters. Transit IC cards / commuter passes and the tap-to-pay of electronic money are representative examples.
- Handover and international roaming are functions of the mobile phone network, and a QR code is read optically by a camera; distinguish all of these from RFID as separate technologies.
用語