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单项选择题You have configured a UTM profile called Block-Spam, which has the appropriate antispam configuration to block undesired spam e-mails.Which configuration would protect an SMTP server in the dmz zone from spam originating in the untrust zone?()

A、set security policies from-zone dmz to-zone untrust policy anti-spam then permit application- services utm-policy Block-Spam

B、set security policies from-zone untrust to-zone dmz policy anti-spam then permit application- services utm-policy Block-Spam

C、set security policies from-zone untrust to-zone dmz policy anti-spam then permit application- services anti-spam-policy

D、set security policies from-zone untrust to-zone dmz policy anti-spam then permit application- services Block-Spam

  • B
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