問70
頻出度★★★
テザリング機能をもつスマートフォンを利用した, PC のインターネット接続に関する記述のうち, 適切なものはどれか。
平成28年度 秋期 ITパスポート試験 問70
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 70
Incorrectア
The connection method between the PC and the smartphone is not limited to wireless LAN (Wi-Fi); a USB cable (USB tethering) or Bluetooth (Bluetooth tethering) can also be used. It is not restricted to wireless LAN, and even a PC without wireless LAN support can use it via a USB connection, so this is incorrect.
Incorrectイ
As long as it connects to the Internet via the mobile phone line, the threat of viruses and malware exists just the same. The line being mobile does not guarantee safety, and antivirus measures on the PC side are still necessary, so this is incorrect.
- ウ
正解 Tethering is a function that makes a smartphone operate as a mobile router (the parent device), connecting devices such as a PC to the Internet via the mobile phone line. Because the smartphone itself plays the role of a router, there is no need to prepare a separate mobile router device. Therefore, option ウ is appropriate.
Incorrectエ
Tethering merely uses standard connection methods such as Wi-Fi, USB, and Bluetooth, and does not require a special PC that supports a dedicated protocol. It can be used as-is on an ordinary PC, so this is incorrect.
ここがポイント
- Tethering = a function that uses the smartphone as the parent device (router / access point) to connect other devices to the Internet, so no separate router needs to be prepared.
- Tethering's connection methods include Wi-Fi, USB, and Bluetooth; it is not limited to wireless LAN or a dedicated protocol, and antivirus measures are still necessary even on a mobile line.
用語