In Huawei devices, when ISIS imports external routes and sets external route tags for routing information, ISIS's metric types do not need to be modified, keep the default.

• A.True
• B.False

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OSPFv3 and ISIS are running on the router at the same time. You need to import OSPFv3 routes to ISIS. Which of the following configurations is correct: (Multiple choice)

• A.[Huawei] isis 1 [Huawei-isis-1]is-level level-1 [Huavvei-isis-1] network-entity 47.0001.0000.0000.0002.00 [Huawei-isis-1] ipv6 enable topology standard [Huawei-isis-1] ipv6 import-route ospfv3 1 [Huawei-isis-1] quit [Huawei] ospfv3 1 [Huawei-ospfv3-1] router-id 2.2.2.2
• B.[Huawei] isis 1 [Huawei-isis-1]is-level level-1 [Huavvei-isis-1] network-entity 47.0001.0000.0000.0002.00 [Huawei-isis-1] import-route ospfv3 1 level-1 [Huawei-isis-1] quit [Huawei] ospfv3 1 [Huawei ospfv3-1] router-id 2.2.2.2
• C.[Huawei] isis 1 [Huavvei-isis-1] network-entity 47.0001.0000.0000.0002.00 [Huawei-isis-1] ipv6 enable topology standard [Huawei-isis-1] ipv6 import-route ospfv3 1 level-1 [Huawei-isis-1] quit [Huawei] ospfv3 1 [Huaweiospfv3-1] router-id 2.2.2.2
• D.[Huawei] isis 1 [Huavvei-isis-1] network-entity 47.0001.0000.0000.0002.00 [Huawei-isis-1] import-route ospfv3 1 [Huawei-isis-1] quit [Huawei] ospfv3 1 [Huawei-ospfv3-1] router-id 2.2.2.2
• E.[Huawei] isis 1 [Huawei-isis-1] is-level level-1 [Huavvei-isis-1] network-entity 47.0001.0000.0000.0002.00 [Huawei-isis-1] ipv6 enable topology standard [Huawei-isis-1] ipv6 import-route ospfv3 1 level-1 [Huawei-isis-1] quit [Huawei] ospfv3 1 [Huaweiospfv3-1] router-id 2.2.2.2

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An MSTP switch treats an RSTP switch as an MSTP domain consisting of a single switch. The MSTP switch resolves the RSTP BPDU to an MST BPDU, where the IRPC is 0.

• A.True
• B.False

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Which statements about BGP route reflection are true? (Multiple Choice)

• A.After learning routes from a client, an RR advertises these routes to all other clients and non-clients.
• B.After learning routes from an IBGP peer, an RR advertises these routes to all clients and non-clients.
• C.IBGP peers must be fully connected in the absence of a route reflector (RR). The BGP route reflection mechanism is introduced to lower the requirement.
• D.After learning routes from a non-client, a route reflector (RR) advertises these routes to all clients.

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If a DR is elected between the multicast routers running PIM-SM to be responsible for receiving and receiving multicast data on the source or member, what is the correct description of the DR election rules?

• A.A router with a small IP address is elected as a DR.
• B.Compare the DR priorities first, if the priorities are the same, you need to compare the IP addresses of the PIM router interface to elect DRs.
• C.A PIM router with a low DR priority value is elected as the DR.
• D.The PIM router with a long interface mask is elected as the DR.

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