Which protocol is used to send email?

The correct answer is D. Simple Mail Transfer Protocol (SMTP). Simple Mail Transfer Protocol (SMTP) is a protocol for sending e-mail messages between servers. POP is a protocol used to retrieve e-mail from a mail server. NFS is a TCP/IP client/server application developed by Sun that enables different types of file systems to interoperate…

Submitted by minji_kr· Apr 18, 2026Network and Communications Security

Question

Options

AFile Transfer Protocol (FTP).
BPost Office Protocol (POP).
CNetwork File System (NFS).
DSimple Mail Transfer Protocol (SMTP).

How the community answered

(35 responses)

A
3% (1)
C
6% (2)
D
91% (32)

Explanation

Simple Mail Transfer Protocol (SMTP) is a protocol for sending e-mail messages between servers. POP is a protocol used to retrieve e-mail from a mail server. NFS is a TCP/IP client/server application developed by Sun that enables different types of file systems to interoperate regardless of operating system or network architecture. FTP is the protocol that is used to facilitate file transfer between two machines.

Topics

#Email Protocols#SMTP#Networking Fundamentals#Application Layer Protocols

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