If the value of the Option field in the OSPFv3 Hello packet sent by GigabitEthernet 0/0/0 interface of Router A is 0x000013, which of the following description is correct? (Multiple Choice)

• A.Router A is an OSPFv3 device with forwarding capability.
• B.Router A supports AS-External-LSA flooding.
• C.GigabitEthernet0/0/0 interface of Router A will participate in IPv6 route calculation.
• D.GigabitEthernet0/0/0 interface of Router A belongs to the NSSA area.

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Two EBGP neighbors connected by two parallel cables. What method will you use to achieve bidirectional load sharing between two EBGP neighbors connected through these two parallel serial cables?

• A.Without any method, BGP automatically implements load sharing between different autonomous systems on the available links.
• B.Use the command "ebgp-load-balance" at both ends
• C.Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS must have two equal-cost paths to the EBGP neighbor loopback address. You must use the command next-hop-local.
• D.Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS need to import two equal-cost paths to the EBGP neighbor loopback address. You must use the commands ebgp-max-hop and next- Hop-local
• E.Configure the EBGP neighbor relationship on the interface of the loopback and configure EBGP Multi-hop. Configure the loopback interface as the update source and then use IGP to implement equal-cost path load sharing between addresses.

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In addition to stateless address autoconfiguration, IPv6 devices can also obtain information such as address, gateway and DNS through DHCPv6.

• A.False
• B.True

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Which is wrong about IPv6 Over VXLAN?

• A.The tunnel between the Layer 2 and Layer 3 gateways of the VXLAN is an IPv4 network.
• B.IPv6 over VXLAN means that Vxlan's Overlay network is an IPv6 network.
• C.IPv6 Over VXLAN does not generate entries.
• D.IPv6 over VXLAN can solve the problem of insufficient IP address resources for terminal tenants.

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Which of the following are used in Ethernet networks? (Multiple Choice)

• A.Non-Canonical format MAC addresses.
• B.CSMA/CD for media access.
• C.802.3 encapsulated frames
• D.Canonical format MAC addresses.
• E.802.5 encapsulated frames.

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