A.A priority of 0 will prevent a router from becoming a DIS.
B.If the DIS becomes unavailable the backup DIS is promoted to DIS.
C.Adding a router with a higher priority than the current DIS will result in the new router becoming DIS.
D.Separate L1 and L2 election processes are held on a brodcast network.
E.L1 routers on a broadcast network only establish adjacencies with the DIS.
F.If there is a tie based on priority，the router whose attached interface has the lowest MAC address becomes the DIS.
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A.IP protocol 50
B.IP protocol 51
C.TCP port 50
D.TCP port 51
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A.terminating PPP sessions at the service provider
B.PPP framing
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E.L2TP tunneling
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C.ISH
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E.IIH
最新試題
All secure domain routers （SDRs） have shared attribute and resources. Which three resources are sharedall SDRs？ （）
Which statement about implementing the Cisco IPv6 provider Edge Router over MPLS is true？（）
What is the BGP synchronization rule？（）
How many messages does internet Key Exchange use to negotiate SA characteristics when running inmain mode？（）
Assume that the PEs are separated by Multiple P routers.How many labels should the ingress PE push for BPE functionality？（）
Which option describes a benefits of IPv6 VPN Provider Edge？（）
Which of the following is used to periodically multicast by DIS on a LAN to ensure IS-IS link state databaseaccuracy？（）
Which statement about VPLS is true？（）
When an MPLS Layer 2 VPN runs in the hub-and-spoke model， where is QoS implemented？（）
Which three protocols use TLVs to carry attributes？（）