单项选择题
A. The host will be allowed to connect.
B. The port will shut down.
C. The host can only connect through a hub/switch where 0002.0002.0002 is already connected.
D. The host will be refused access.
E. None of the other alternatives apply
单项选择题 VLAN maps have been configured on switch R1. Which of the following actions are taken in a VLAN map that does not contain a match clause？ （）
单项选择题 Refer to the exhibit. The web servers WS_1 and WS_2 need to be accessed by external and internal users. For security reasons， the servers should not communicate with each other， although they are located on the same subnet. The servers do need， however， to communicate with a database server located in the inside network. What configuration will isolate the servers from each other？ （）
多项选择题 pany is implementing 802.1X in order to increase network security. In the use of 802.1X access control， which three protocols are allowed through the switch port before authentication takes place？ （）