In a broadcast type network, what is the default time interval for DIS to send Hello?

• A.5s
• B.10s
• C.40s
• D.3.3s

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For the information output by the display ospf peer below, which of the following description is correct?
<Huawei=display ospf peer
OSPF Process 1 with Router ID 10.1.1.2
Neighbors
Area 0.0.0.0 interface 10.1.1.2 ( Gigabitethernet1/0/0 ) 's neighbors
Router ID: 10.1.1.1
Addres:10.1.1.1
State: Full Mode:Nbr is Slave Priority: 1
DR:10.1.1.1BDR: None MTU: 0
Dead timer due in 38 sec
Retrans timer interval: 5Neighbor is up for 00: 00:04
Authentication Sequence: [0]

• A.After negotiation during the DD exchange process, the local end becomes Slave
• B.Designated router (DR) for the address is 10.1.1.1
• C.Address:10.1.1.1 means the local interface address is 10.1.1.1
• D.Router ID means that the local router ID is 10.1.1.1

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As shown in the figure, PC1 and PC2 belong to the same network segment of the host, which of the following description on PC1 and PC2 between IPv6 of the neighbor state is correct? (Multiple choice)

• A.PC1 and PC2 exist between neighbors may be five kinds of state, they are Incomplete, Reachable, Stale, Delay, Probe
• B.If the C address information of PC2 can be queried on PC1, the neighbor relationship may be Stale at this time
• C.If the MAC address information of PC2 can be queried on the PC, the neighbor relationship may be Probe at this time.
• D.If the PC1 can query to PC2 of C address information, the neighbor relationship at this time is Reachable

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The shortest path from the multicast source to the receiver becomes the shortest path tree SPT.

• A.TRUE
• B.FALSE

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Regarding the description of the permanent multicast address, which of the following is false?

• A.All routers listen on 224.0.0.2
• B.All routers running OSPF protocol listen on 224.0.0.5
• C.All routers running the PIM protocol listen to 224.0.0.100
• D.All hosts and routers in the network segment listen to 224.0.0.1

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