Which type of MAC address is dynamically learned by a switch port and then added to the switch’s runningconfiguration？（）

单项选择题AsanetworkengineeratCertpaper.com，youareresponsibleforCertpapernetwork.WhichwillbenecessarilytakenintoconsiderationwhenimplementingSyslogginginyournetwork？（）

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？（）

A.Traffic that matches access list 103 will be protected
B.This VPN configuration will not work because the tunnel IP and peer IP are the same
C.The tunnel is down because the transform set needs to include the Authentication Header parameter
D.The tunnel is down as result of being a static rule. It should be configured as a Dynamic IPsec policy

单项选择题Forthefollowingitems，whichoneactsasaVPNterminationdeviceandislocatedataprimarynetworklocation？（）

A.Broadband service
B.Headend VPN device
C.VPN access device
D.Tunnel

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？（）

A.SDM_Default_197
B.SDM_Default_199
C.SDM_Default_196
D.SDM_Default_198

单项选择题HowdoyoudefinetheauthenticationmethodthatwillbeusedwithAAA？（）

A.With the method aaa command
B.With the method command
C.With a method list
D.With a method statement