問31
頻出度★★☆
RFID の活用によって可能となる事柄として, 適切なものはどれか。
令和元年度 秋期 ITパスポート試験 問31
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 31
Incorrectア
Grasping the current position of a moving object in real time is the role of GPS (Global Positioning System), not RFID. RFID is a technology that reads tags located close to a reader, and it cannot be used for wide-area location tracking.
Incorrectイ
Encrypting the content of communication to ensure security is the role of encryption technologies such as SSL/TLS. RFID is a mechanism for reading the identification information on a tag; it is not a technology whose purpose is encrypting the communication channel.
Incorrectウ
Authenticating an individual by physical features such as fingerprints or iris is biometrics (biometric authentication). RFID only reads the ID information recorded on a tag and does not identify physical features.
- エ
正解 RFID is a technology that reads and writes the information on IC tags without contact using radio waves. Unlike a barcode, it does not require line-of-sight alignment, and its greatest advantage is that it can read many tags at the same time in a batch. If each book in a library is fitted with an IC tag, then when checking out or returning books, several stacked books can be processed together at once, so option エ is an appropriate use of RFID.
ここがポイント
- RFID reads and writes IC tags without contact and without line-of-sight using radio waves, and can read multiple tags at once in a batch (typical examples include library check-out and returns, inventory management, and transit IC cards).
- Distinguish RFID's role from that of other technologies: location tracking is GPS, communication encryption is SSL/TLS, and identity verification by physical features is biometrics.
用語