The router data is as follows. Which of the following statements is true?

• A.The circuit-level of Eth0/0/0/1 on R3 is Level-1-2.
• B.Ge0/0/0 of R3 and neighbor routers are in different areas.
• C.R3 is the Level-1 DIS and Level-2 DIS for the link where Eth0/0/0 resides.
• D.IS-IS IPv4 and IS-IS IPv6 are enabled on Eth0/0/1 of R3.

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Which of the following statements is false about the DSCP field?

• A.When the DSCP value is EF, data is forwarded in expedited forwarding mode
• B.CS in DSCP classifies data based on eight priorities
• C.DSCP can represent the data priority as well as the packet drop probability
• D.The DSCP value can be 0. When the value is 0, the default packet forwarding mechanism is used

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On a RIPng network, configure a router to advertise the default route to the entire network. Which of the following configurations is correct?

• A.[Huawei]ripng 1[Huawei-ripng-1]import-route static cost 2[Huawei-ripng-1]quit [Huawei]ipv6 route-static :: 0 2001:19:9
• B.[Huawei]ripng 1[Huawei-ripng-1] ripng default-route originate[Huawei-ripng-1]quit
• C.[Huawei]interface GigabitEthernet0/0/1[Huawei-GigabitEthernet0/0/1]ipv6 enable [Huawei-GigabitEthernet0/0/1]ipv6 address 2001::12::1/64[Huawei-GigabitEthernet0/0/1]ripng 1 enable [Huawei-GigabitEthernet0/0/1] ripng default-route originate [Huawei-GigabitEthernet0/0/1]quit
• D.[Huawei]ripng 1[Huawei-ripng-1]import-route static cost 2[Huawei-ripng-1]quit [Huawei]ipv6 route-static :: 0 NULL0

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In the case of not dividing the area, the following is true about the road route description, ? chain state protocol

• A.Each router directly routes from the routing update and adds it to the routing table.
• B.The router in the flooding domain may repeatedly receive the same road information chain.
• C.The router will send all the existing road information to all other neighbors to send the wrong state to the neighbor, and the data synchronization certificate.
• D.Each router establishes a topology structure for the entire flooding domain.
• E.The routers in the entire flooding domain have the same road data.

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To configure the verification of the source address of IP data packets on switches, which of the following configurations is complete and correct?
A)

B)

C)

D)

E)

• A.Option A
• B.Option D
• C.Option B
• D.Option E
• E.Option C

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