单项选择题
Users on the 192.168.1.0/24 network must access files located on the Server 1. What route could be configured on router R1 for file requests to reach the server?（）
A.ip route 0.0.0.0 0.0.0.0 s0/0/0 B.ip route 0.0.0.0 0.0.0.0 209.165.200.226 C.ip route 209.165.200.0 255.255.255.0 192.168.1.250 D.ip route 192.168.1.0 255.255.255.0 209.165.100.250
单项选择题 WhichwirelessLANdesignensuresthatamobilewirelessclientwillnotloseconnectivitywhenmovingfromoneaccesspointtoanother?（）
单项选择题 WhichencryptiontypedoesWPA2use?（）
多项选择题 WhicharevalidmodesforaswitchportusedasaVLANtrunk?(Choosethree.)（）
