单项选择题
A.::1 B.:: C.2000::/3 D.0::/10
Given an IP address 172.16.28.252 with a subnet mask of...
单项选择题Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network addres?（）
A.172.16.16.0 B.172.16.24.0 C.172.16.0.0 D.172.16.28.0
You have been asked to come up with a subnet mask that ...
单项选择题You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the max number of subnets.Which network address and subnet mask meet this requirement?（）
A.192.168.252.8 255.255.255.248 B.192.168.252.8 255.255.255.252 C.192.168.252.16 255.255.255.240 D.192.168.252.0 255.255.255.252 E.192.168.252.16 255.255.255.252
Which command encrypts all plaintext passwords?（）A.Rout...
单项选择题Which command encrypts all plaintext passwords?（）
A.Router(config)#password-encryption B.Router(config)#service password-encryption C.Router#service password-encryption D.Router# password-encryption
