What main protocols do email users and servers normally use to process email? (Choose three.)
- DHCP
- SMTP
- IMAP4
- DNS
- POP3
Explanation: Email supports three separate protocols for operation: Simple Mail Transfer Protocol (SMTP), Post Office Protocol (POP), and Internet Message Access Protocol (IMAP).
Exam with this question: CCNA 1 ITNv6 Chapter 10: Check Your Understanding
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