IPA IP 2025 Question 60
A question IPA Japan published in 令和7年度 ITパスポート試験 公開問題 問60, translated into English. ITPEC is based on the same exams.
Which of the following is an appropriate role of FTP, which is a protocol used in a TCP/IP network?
Explanation
It transfers files between PCs — FTP (File Transfer Protocol) is the application-layer protocol for sending and receiving files.
An FTP client connects to an FTP server to upload files to it, download files from it, and list or delete them. FTP uses one TCP connection for control commands (port 21) and another for the data itself. It sends user names and passwords unencrypted, so encrypted alternatives such as SFTP or FTPS are preferred today.
Answer (d)
Why not others:
- •(a) — synchronising a computer’s clock with an accurate time server is NTP
- •(b) — transferring e-mail is SMTP (receiving it from a mailbox is POP or IMAP)
- •(c) — automatically assigning an IP address and other network settings is DHCP
Key rule: Match the protocol to its job: FTP files, SMTP mail sending, POP/IMAP mail receiving, NTP time, DHCP address assignment, DNS name resolution.
Networks · AI-written, may contain errors
This question comes from the past questions IPA Japan publishes, translated into English by ITPEC Practice. ITPEC Practice is an independent study tool and is not affiliated with IPA or ITPEC. See the original paper (PDF) or Report an issue.