CompTIA Network+ (N10-007) — Question 256

Which of the following protocols is used to transport outgoing mail across networks?

Answer options

• A. POP
• B. SMTP
• C. IMAP
• D. LDAP

Correct answer: B

Explanation

SMTP, or Simple Mail Transfer Protocol, is specifically designed for sending email messages from a client to a server or between servers. POP (Post Office Protocol) and IMAP (Internet Message Access Protocol) are used for retrieving emails from a server, while LDAP (Lightweight Directory Access Protocol) is used for accessing directory services and is not related to email transport.