There are multiple route entries to the same destination network in the routing table. These routes are called:

• A.Default route
• B.Multi-path routing
• C.Sub-optimal routing
• D.Equal cost routing

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Which of the following statements about IPv6 multicast addresses are correct? (Multiple Choice)

• A.Realize load sharing of services
• B.Provide redundant functions for services
• C.The packet whose destination address is a multicast address will be sent to the nearest network interface in the sense of routing
• D.Multicast addresses and unicast addresses use the same address space

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Which of the following description about the Layer 2 Ethernet switch is incorrect?

• A.Able to learn MAC address
• B.Forward according to the Layer 2 header information of the Ethernet frame
• C.Layer 2 Ethernet switches work at the data link layer
• D.It is necessary to make certain modifications to the layer 3 header of the forwarded message, and then forward it

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The network shown below, it is desirable host traffic network administrator during planning A destined for host B data packets through the router between the G0/0/3 interfaces, the host B to the host PC A data packet through the router Between the G0/0/4 interface, which of the following commands can achieve this requirement? (Multiple choice)

• A.RTA : ip route-static 10.0.12.5 255.255.255.252 11.0.12.2 RTB : ip route-static 10.0.12.1 255.255.255.252 11.0.12.5
• B.RTA : ip route-static 10.0.12.5 255.255.255.252 11.0.12.6 RTB : ip route-static 10.0.12.1 255.255.255.252 11.0.12.1
• C.RTA : ip route-static 0.0.0.0 0.0.0.0 11.0.12.2 RTB : ip route-static 0.0.0.0 0.0.0.0 11.0.12.5
• D.RTA : ip route-static 0.0.0.0 0.0.0.0 11.0.12.6 RTB : ip route-static 0.0.0.0 0.0.0.0 11.0.12.1

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Which of the following description about DD packets and LSA of OSPF is correct? (Multiple choice)

• A.The DD packet contains only LSA header information
• B.The header of an LSA can uniquely identify an LSA
• C.DD packet contains detailed information about LSA
• D.LSA header is only a small part of LSA

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