What is the protocol number corresponding to the OSPF protocol at the network layer?

• A.89
• B.1
• C.0
• D.6

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Which of the following features does the OSPF protocol have? (Multiple choice)

• A.Calculate the shortest path by hops
• B.Prone to routing loops
• C.Trigger update
• D.Division of Support Regions

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Which of the following IPv6 addresses can be abbreviated as 2FFF:DAC:ABEF::CDAA:732?

• A.2FFF:0DAC:ABEF:0000:0000:0000:CDAA:7320
• B.2FFF:0DAC:ABEF:0000:0000:0000:CDAA:0732
• C.2FFF:0DAC:ABEF:0000:0000:CDAA:0732
• D.2FFF:DAC0:ABEF:0000:0000:0000:CDAA:0732

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Ethernet frames are processed and forwarded in the form of VLAN TAG inside the switch.

• A.False
• B.True

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"The network administrator created VLAN 10 on the Layer 3 switch and configured an IP address under the virtual interface of this VLAN.
When using the command "display ip interface brief" to view the interface status, it is found that the VLANIF 10 interface is down, what should be done to restore the VLANIF 10 interface to normal?

• A.Add a physical interface whose state must be Up to VLAN 10
• B.Add an interface whose state must be Up and must be Trunk type into VLAN 10
• C.Add any physical interface to VLAN 10
• D.Use the command "undo shutdown" on the VLANIF 10 interface

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