Which NetFlow version should be used to collect accounting data for IPv6 traffic？（）

单项选择题WhichconfigurationwouldmakeanIPSLAprobeuseaprecedencevalueof3？（）

A.ip sla 1  icmp-echo 1.1.1.1 tos 12
B.ip sla 1  icmp-echo 1.1.1.1 tos 96
C.ip sla 1  icmp-echo 1.1.1.1 precedence 3
D.ip sla 1  icmp-echo 1.1.1.1 dscp 12

单项选择题OnarouterthatisconfiguredwithmultipleIPSLAprobes，whichcommandcanbeusedtomanagethe CPUloadthatwascreatedbytheperiodicprobing？（）

A.ip sla monitor low-memory
B.ip sla group schedule
C.ip sla reaction-trigger
D.ip sla enable timestamp

单项选择题Refertotheexhibit.Inthisnetwork，R1isconfigurednottoperformautosummarizationwithinEIGRP.WhatrouteswillR3learnfromR2throughEIGRP？（）

A. 172.30.1.0/24 and 10.1.2.0/24；EIGRP only performs autosummarization at the edge between two major networks.
B. 172.30.0.0/16 and 10.1.2.0/24；R2 will perform autosummarization although R1 will not.
C. Since R2 is configured without autosummarization， it will not propagate the 172.30.1.0/24 route.
D. 172.30.0.0/8 and 10.0.0.0/8.

单项选择题Refer to the exhibit. In this network， R1 has been configured to advertise a summary route， 192.168.0.0 22， to R2. R2 has been configured to advertise a summary route， 192.168.0.0 21， to R1. Both routers have been configured to remove the discard route （the route to null created when a summary route is configured） by setting the administrative distance of the discard route to 255. What will happen if R1 receives a packet destined to 192.168.3.1？（）

A. The packet will loop between R1 and R2.
B. It is not possible to set the administrative distance on a summary to 255.
C. The packet will be forwarded to R2， where it will be routed to null0.
D. The packet will be dropped by R1， since there is no route to 192.168.3.1.

单项选择题YouarethenetworkadministratorofasmallLayer2networkwith50users.Lately，usershavebeencomplainingthatthenetworkisveryslow.Whiletroubleshooting，younoticethattheCAMtableofyourswitchisfull，althoughitsupportsupto12，000MACaddresses.Howcanyousolvethisissueandpreventitfromhappeninginthefuture？（）

A.Upgrade the switches
B.Configure BPDU guard
C.Configure VLAN access lists
D.Configure port security
E.Configure Dynamic ARP inspection