In electronic mail, which of the following protocols allows the transfer of…

Correct answer: MIME (Multipurpose Internet Mail Extensions) enables email to include multimedia content such as images, audio, video, and other file attachments.

Why MIME is used:

• MIME defines content types (via the Content-Type header) and multipart structures so messages can carry different kinds of data in a single email.

• It specifies encoding methods (for example, base64) to safely encode binary multimedia for transmission over protocols that expect text.

• MIME works together with transport and access protocols (SMTP for sending, IMAP/POP3 for retrieving) to allow multimedia messages to be transmitted and accessed.

Contrast with other protocols:

• SMTP handles sending messages but does not define how multimedia is formatted.

• IMAP and POP3 handle access and retrieval of messages; they do not specify the encoding or content types for multimedia.