Question

Which of the following is not a part of an e-mail address ?

• A. User name
• B. Domain name
• C. @
• D. Protocol

Hint:

An email address is like a postal address (who and where). A protocol is like the postal service rules (how the letter is sent and delivered).

Answer 1

The Correct Option is D

Step 1: Analyze the structure of an email address. A standard email address has the format `username@domainname`.

The `username` identifies the specific user.
The `@` symbol is a separator.
The `domainname` identifies the mail server that handles the email.

Step 2: Define protocol in this context. A protocol (like SMTP for sending, or POP3/IMAP for receiving) is a set of rules that email clients and servers use to communicate. The protocol is not part of the address itself.