多项选择题
A.amount of RAM B.bridge priority C.IOS version D.IP address E.MAC address F.speed of the links
Which component of VPN technology ensures that data can...
单项选择题Which component of VPN technology ensures that data can be read only by its intended recipient?（）
A.dataintegrity B.encryption C.keyexchange D.authentication
An inbound access list has been configured on a serial ...
多项选择题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? （）
A.FTP B.Telnet C.SMTP D.DNS E.HTTP F.POP3
保留给自环测试的IP地址是（）。A.127.0.0.0B.127.0.0.1C.224.0.0.9D.126....
多项选择题保留给自环测试的IP地址是（）。
A.127.0.0.0 B.127.0.0.1 C.224.0.0.9 D.126.0.0.1 E.127.0.0.121
