单项选择题
A. Remote console B. Statefulness C. Address translation D. Zones
A layer 3 switch can move packets between subnets based...
单项选择题A layer 3 switch can move packets between subnets based on which of the following criteria?（）
A. 802.1q tag B. Port C. Application D. IP address
Which of the following is an invalid IPv4 address?（）A.2...
单项选择题Which of the following is an invalid IPv4 address?（）
A.225.0.0.1 B.254.254.0.0 C.256.0.0.4 D.224.2.1.4
An administrator needs to update a router configuration...
单项选择题An administrator needs to update a router configuration for a router that does not support SSH.Which of the following can be used to securely update the router configuration?（）
A.FTP B.SNMPv2 C.TFTP D.KTTPS
