On the OSPF network shown in the figure, an adjacency has been established between R1 and R2. An engineer configures the commands in the figure on R2.

In this case, which of the following routing entries may exist in the routing table of R2?

• A.10.1.2.0/24
• B.10.1.4.0/24
• C.10.1.3.0/24
• D.10.1.1.0/24

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The following is the information output by a router through the display bgp routing-table command:
BGP Local router ID is 192.168.2.2 Status codes: *-valid, >-best, d-damped, h-history, i-internal, s- suppressed, S- Stale Origin: i-IGP, e-EGP, ? incomplete Total Number of Routes: 9 Network Next Hop MED LocPrfPrefVal Path/0gn*>1.1.1.9/32 0.0.0.0*)i 2.2.2.7/32 10.1 .1.2100 (65001)i 1.3.1 1000 (6501165001)i*i 1.2.2100 (65011)i*>i
2.2.2.8/32 (6500165011)i 1.3.2100*i
Regarding the description of the above output information, which one is wrong?

• A.The Router ID of this device is 192.168.2.2
• B.Routes to 2.2.2.7/32 are injected through the network command.
• C.The route to 2.2.2.7/32 with the next hop being 10.1.3.1 is the optimal route.
• D.There are two paths to 2.2.2.8/32

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On an OSPF network, if two indirectly connected routers with the same router ID run in the same area, Type 1 LSA calculation fails.

• A.TRUE
• B.FALSE

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The ABR of the OSPF complete stub area does not flood the third, fourth and fifth type LSAs to the area. Therefore, the ABR of the complete stub area needs to manually delegate a default route to the area to guide the data packets how to reach outside the AS. destination.

• A.TRUE
• B.FALSE

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Which of the following attacks is not the network layer attack?

• A.IP spoofing attack
• B.ICMP attack
• C.Smurf attack
• D.ARP spoofing attack

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