Which is the standard protocol for email communication?

Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

Which is the standard protocol for email communication?

Explanation:
Email delivery is handled by a protocol built for moving messages between mail servers and from clients to servers. Simple Mail Transfer Protocol (SMTP) is the standard for this purpose. It governs how mail is relayed across servers and submitted for delivery, typically over TCP on port 25 (and submission on port 587 with TLS). Reading mail from a server uses different protocols such as POP3 or IMAP. HTTP, FTP, and DNS serve different roles: HTTP for web pages, FTP for file transfer, and DNS for translating domain names into IP addresses (and identifying mail servers via MX records), but none of them are the standard protocol for sending email.

Email delivery is handled by a protocol built for moving messages between mail servers and from clients to servers. Simple Mail Transfer Protocol (SMTP) is the standard for this purpose. It governs how mail is relayed across servers and submitted for delivery, typically over TCP on port 25 (and submission on port 587 with TLS). Reading mail from a server uses different protocols such as POP3 or IMAP. HTTP, FTP, and DNS serve different roles: HTTP for web pages, FTP for file transfer, and DNS for translating domain names into IP addresses (and identifying mail servers via MX records), but none of them are the standard protocol for sending email.

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