单项选择题
A.Enable the highest level of Syslogging available to ensure you log all possible event messages
B.Use SSH to access your Syslog information
C.Log all messages to the system buffer so that they can be displayed when accessing the router
D.Syncronize clocks on the network with a protocol such as Network Time Protocol
单项选择题 Refer to the exhibit. Based on the VPN connection shown， which statement is true？（）
单项选择题 Forthefollowingitems，whichoneactsasaVPNterminationdeviceandislocatedataprimarynetworklocation？（）
单项选择题 Refer to the exhibit. You are the network security administrator responsible for router security.Your networkuses internal IP addressing according to RFC 1918 specifications.From the default rules shown，whichaccess control list would prevent IP address spoofing of these internal networks？（）