Which three protocols are required when considering firewall rules email services using a Cisco Email Security Appliance?

Posted by: Pdfprep Category: 300-210 Tags: , ,

Which three protocols are required when considering firewall rules email services using a Cisco Email Security Appliance?
A . HTTP
B . SMTP
C . TFTP
D . FTP
E . DNS
F . SNMP

Answer: ABE

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