Which of the following characteristics apply to SMTP only (and do not apply to HTTP)? Note: check one or more of the characteristics below.

Question

Which of the following characteristics apply to SMTP only (and do not apply to HTTP)?  Note: check one or more of the characteristics below.

Answer

Uses a blank line (CRLF) to indicate end of request header.

Answer

Uses server port 25.

Answer

Has ASCII command/response interaction, status codes.

Answer

Uses server port 80.

Answer

Operates mostly as a "client push" protocol.

Answer

Operates mostly as a "client pull" protocol.

Answer

Is able to use a persistent TCP connection to transfer multiple objects.

Answer

Uses CRLF.CRLF to indicate end of message.

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