問83
頻出度★★★
SIM カードの説明として, 適切なものはどれか。
平成30年度 秋期 ITパスポート試験 問83
テクノロジ系ネットワーク › ネットワーク応用
This question's explanation and your answers so far.
解説
問 83
Incorrectア
A card-shaped device that generates a password that can be used only once when needed is a description of a hardware token that issues one-time passwords (OTP); it is a different thing from a SIM card.
- イ
正解 A SIM card (Subscriber Identity Module) is an IC card that is inserted into a mobile phone or smartphone. It stores subscriber information such as the phone number and the ID used to identify the subscriber. By reading the information on this card, the device can connect to the carrier’s network as a subscriber. Therefore, choice “イ”, which describes it as an IC card inserted into devices such as mobile phones on which information such as the phone number and subscriber ID is recorded, is correct.
Incorrectウ
A large-capacity memory card used in devices such as digital music players and digital cameras to store content is a description of a memory card such as an SD card; its purpose differs from that of a SIM card, which records subscriber information and is used for communication.
Incorrectエ
A card bundled with a digital broadcast receiver that descrambles broadcasts is a description of a B-CAS card, which is different from a SIM card that identifies a mobile phone subscriber.
ここがポイント
- A SIM card is an IC card inserted into a mobile phone or smartphone. It records subscriber information such as the phone number and subscriber ID, and is used to connect to a carrier’s network.
- Distinguishing it from similar card-shaped devices: do not confuse it with an OTP token (ア), a memory card = SD card (ウ), or a B-CAS card (エ).
用語