OSFFv2 is an IGP running on an IPv4 network: OSPFV3 is an IGP running on an IPv6 network. Compared with OSPFv2, SPFV3 has a similar LSA type, but the function is slightly different. Which of the following is not included in the LSA type of OSPFv3?

• A.Router-LSA
• B.AS-External-LSA
• C.Network-LSA
• D.ASBR-Summary-LSA

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OSPF is deployed in a small and medium-sized network. When checking the routing table of a certain device, it is found that there are only direct routes. Which operation is unlikely to cause the fault?

• A.Routing protocol configuration error
• B.Port address configuration problem
• C.The configured user authority is too low
• D.The routing policy is incorrectly configured

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What is the flooding scope in OSPFv3 for the LSA in the entire autonomous system?

• A.Link-LSA
• B.Intra-Area-Prefix-LSA
• C.As-external-LSA
• D.Inter-Area-Prefix-LSA

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Regarding BGP/MPLS IPVPN routing interaction, which of the following descriptions is wrong?

• A.The ingress PE changes the IPv4 route received from CE to VPNv4 route, and saves it according to different VPN instances
• B.The egress PE can send IPv4 routes to the remote CE through BGP, IGP or static routing
• C.The exchange between PE and CE is IPv4 routing information
• D.After the egress PE receives the VPNv4 route advertised by the ingress PE, it filters the VPNv4 route according to the RT attribute carried by the route

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Which of the following description of the configuration on this switch is correct? (Multiple choice)

• A.The VANIF100 interface will send the received DHCP messages to the external DHCP Server through the relay
• B.First, you need to create a DHCP server group and add a DHCP server to the server group
• C.To configure the DHCP server and DHCP relay, DHCP must be enabled globally
• D.Specify the DHCP server group as dhcpgroup1 for the VLAN100 interface

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