問72
頻出度★★★
特定のメールアドレスに電子メールを送ると, そのアドレスに対応して登録済みの複数のメールアドレスに同じ内容のメールを配信する仕組みはどれか。
平成27年度 春期 ITパスポート試験 問72
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 72
Incorrectア
Web mail refers to a service style in which e-mail is sent, received, and stored through a web browser, without installing dedicated mail software on the device. It is only about the means (the interface) of using e-mail, not a mechanism that automatically delivers one message to multiple registered addresses.
Incorrectイ
Chain mail is junk mail that contains a message such as “please forward this to several people”, urging recipients themselves to forward it so that it spreads in a chain. It spreads through manual forwarding by recipients, not through a mechanism in which a server delivers the message to addresses registered in advance. On the contrary, such mail should be discarded without forwarding.
- ウ
正解 The correct answer is (ウ) Mailing list. A mailing list is a mechanism in which the e-mail addresses of several participants are registered in advance as a single list; when an e-mail is sent to the representative address prepared for that list (for example, list@example.com), the server automatically forwards and delivers the same message to everyone registered on the list. In the question, “sending to a specific e-mail address” corresponds to the representative address, and “multiple e-mail addresses registered in association with that address” corresponds to the participants on the list, so the description matches exactly. The sender only has to write one destination address, and adding or removing members simply means changing the registration information on the list side, so mailing lists are widely used for sharing information and holding discussions among fixed members such as project teams and clubs.
Incorrectエ
Reply mail is the function of sending an answer back to the sender of a received message, and its destination is basically limited to the original sender (and the people in the Cc field). It does not fit the description in the question of delivering the same content to multiple pre-registered addresses at once.
ここがポイント
- Mailing list = a mechanism where sending to a single representative address makes the server automatically broadcast the message to all registered members. Address management is centralized on the list side, so it copes well with changes in membership.
- Telling apart confusing e-mail terms: web mail (using e-mail through a browser), chain mail (junk mail that spreads through forwarding by recipients), and reply mail (an answer to the sender) are none of them “automatic broadcasting to multiple destinations”.
用語