简答题 Does EIGRP support areas？

问答题BGP使用loopback接口建立邻居的好处？

单项选择题Refer to the exhibit. Look at the command output. What would be the most probable reason for this port-ID mismatch？（）

A.spanning-tree misconfiguration
B.speed mismatch configuration
C.cabling problem
D.configuration problem

多项选择题Refer to the exhibit. According to the output of the command show tag-switching forwarding-table， which four of these statements are true？（）

A.Packets to the IP address 10.10.10.5/32 will be tagged with "17" toward the next hop.
B.Label "19" will be advertised to MPLS neighbors so that they can use this label to reach the IP address 10.10.10.6/32.
C.IP address 10.10.10.4/32 is directly connected to the neighbor router on serial 3/0.
D.Packets arriving with label "17" will be forwarded without any label toward serial 4/0.
E.Packets arriving with label "20" will be forwarded with label "21" after label-swapping.
F.Label "20" is advertised to MPLS neighbors so that they can use this information to reach the prefix 10.10.10.8/32.

多项选择题An802.1Qtrunkisnotcomingupbetweentwoswitches.Theportsonbothswitchesareconfiguredas switchportmodedesirable. Assumingthatthereisnophysicalissue，choosetwopossiblecauses.（）

A.Incorrect VTP domain
B.Incorrect VTP password
C.Incorrect VTP mode
D.Incorrect VTP configuration revision

问答题WRR和SRR的区别是什么？