平成30年度春期 ITパスポート試験問89

This question's explanation and your answers so far.

問89

頻出度★★★

無線通信におけるLTE の説明として, 適切なものはどれか。

出典　平成30年度春期 ITパスポート試験問89

解説

問 89

Incorrectア
A wireless LAN method in which terminals communicate directly with each other without going through an access point describes “ad hoc mode” (Wi-Fi Direct also connects terminals without an access point, but it is a different technology in which one terminal acts as the group owner and takes the access point's role), which is a different thing from LTE, a mobile phone standard.
Incorrectイ
A small-scale network that connects PCs, peripheral devices, and the like within a range of several meters describes a PAN (Personal Area Network, typically Bluetooth), and does not apply to LTE, which is a wide-area mobile phone line.
ウ
正解 LTE (Long Term Evolution) is a mobile phone wireless communication standard that builds on third-generation (3G) mobile phone communication and enables higher-speed data communication. It became widespread as a mobile line able to handle video viewing and large-volume data exchange, and is often positioned as “3.9G” or effectively a 4G-generation technology. The wording of choice ウ, “a mobile phone wireless communication standard that enables higher-speed data communication than third-generation mobile phones,” matches this definition exactly, so ウ is correct.
Incorrectエ
A compact mobile phone base station installed in homes or offices where radio waves are hard to reach describes a “femtocell.” LTE refers to the communication standard itself, not to base station equipment, so it is incorrect.

ここがポイント

LTE is a wireless communication standard for mobile phones (mobile) that achieves higher-speed data communication than 3G (effectively a 4G-generation technology).
Distinguishing wireless communication terms: ad hoc mode = direct wireless LAN communication without an access point; PAN = short-range network within several meters (Bluetooth); femtocell = a compact indoor mobile base station.

用語

解答問89ウ