1.

Simple mail transfer protocol (SMTP) utilizes _________ as the transport layer protocol for electronic mail transfer.(a) TCP(b) UDP(c) DCCP(d) SCTPI have been asked this question during an interview.This key question is from SMTP in division Application Layer of Computer Network

Answer»

The correct choice is (a) TCP

Explanation: Since TCP is a reliable PROTOCOL, it’s more EFFICIENT to use TCP protocol for e-mail transfer. TCP also provides more security than other TRANSPORT layer protocols.



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