平成29年度春期 ITパスポート試験問74

This question's explanation and your answers so far.

問74

頻出度★★☆

通信プロトコルであるPOP の説明として, 適切なものはどれか。

出典　平成29年度春期 ITパスポート試験問74

解説

問 74

Incorrectア
'Remotely operating a computer at a distant location from a terminal' describes Telnet or SSH, not POP.
Incorrectイ
'Transferring files' describes FTP, not POP.
Incorrectウ
'Sending email to a mail server' describes SMTP. POP is on the receiving side, so its role is the opposite of the sending-side SMTP.
エ
正解 POP (Post Office Protocol) is the protocol used when a user's mail software (mail client) retrieves (receives) email that has arrived on a mail server. Therefore the choice 'エ', which describes it as a protocol for mail software to receive email from a mail server, is correct. Among email-receiving protocols there is also IMAP, which lets you view messages while keeping them managed on the server.

ここがポイント

POP is the protocol by which a mail client receives (retrieves) email from a mail server. Remember the division of roles: sending uses SMTP, receiving uses POP / IMAP.
Identifying email-related protocols: sending = SMTP, receiving = POP (retrieve and store) / IMAP (manage on the server), file transfer = FTP, remote operation = Telnet and SSH.

用語

解答問74エ