Which of the following transport layer protocolss is used to support electronic mail?
Answers
Step-by-step explanation:
TCP and UDP are two transport layer protocols
SMTP uses TCP as reliable
SMTP is the transport layer protocols is used to support electronic mail.
Explanation:
The Simple Mail Transfer Protocol (SMTP) is used to deliver emails over the Internet. This protocol is used by most email clients to send messages to the server and is also used by servers to forward messages to their final destination. SMTP is only used for delivery; it can not be used to retrieve email messages from servers. SMTP servers, also known as MTAs (Mail Transfer Agents). They use DNS Message Exchange (MX) records to determine the mail server address for a particular domain name. Thus email uses SMTP as application layer protocol, SMTP uses TCP as transport protocol.
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