An inbound access list has been configured on a serial interface to deny packet entry for TCP and UDP ports 21, 23 and 25. What types of packets will be permitted by this ACL (Choose three.)()。

A . FTP B . Telnet C . SMTP D . DNS E . HTTP F . POP3

时间:2022-10-30 23:54:56 所属题库:机动车车身涂装题库

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