Which abbreviation represents the protocol used to transfer email between servers?

Which abbreviation represents the protocol used to transfer email between servers?

• A. SMTPS
• B. SSH
• C. SMTP
• D. SFP

Answer: (C)

The key idea is understanding how email moves from one mail server to another. SMTP, which stands for Simple Mail Transfer Protocol, is the protocol that handles that transfer between servers. It defines how servers talk to each other, relay messages, and manage delivery so email can traverse the Internet from sender to recipient. In practice, SMTP is also used when your mail client submits mail to your server, and your server forwards it onward to the recipient’s server. The other options don’t fit this role. SSH is for secure remote access to systems, not for mail transfer. SFP refers to a hardware module used for fiber or copper networking, not a communication protocol. SMTPS is a commonly used term for SMTP over TLS, but the formal protocol involved remains SMTP (with encryption provided by TLS).

The key idea is understanding how email moves from one mail server to another. SMTP, which stands for Simple Mail Transfer Protocol, is the protocol that handles that transfer between servers. It defines how servers talk to each other, relay messages, and manage delivery so email can traverse the Internet from sender to recipient. In practice, SMTP is also used when your mail client submits mail to your server, and your server forwards it onward to the recipient’s server.

The other options don’t fit this role. SSH is for secure remote access to systems, not for mail transfer. SFP refers to a hardware module used for fiber or copper networking, not a communication protocol. SMTPS is a commonly used term for SMTP over TLS, but the formal protocol involved remains SMTP (with encryption provided by TLS).