Type 5 LSAs in OSPF are used to transmit external routes. Which of the following statements regarding Type 5 LSAs is false?

• A.Filtering policies can be configured on ABRs or ASBRs to filter Type 5 LSAs.
• B.Type 5 LSAs are advertised by ASBRs and flooded on OSPF networks except stub areas and NSSAs.
• C.Routers in the same area as the ASBR can calculate external routes through intra-area LSAs and Type 5 LSAs.
• D.A Type 5 LSA contains the FA address, which is 0.0.0.0.The FA address is reserved only and does not take effect.

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Which scene can be used AS-path -filter?

• A.According to the route with AS_PATH, BGP peer x.x.x.x as-path-filter export attribute sends the route
  to the neighbor. For example command
• B.Clause in the route-policy apply
• C.Clause in the route-policy if-match
• D.According to the route with the AS_PATH, BGP peer x.x.x.x as-path-filter import attribute to the route
  received by the filtering neighbor. For example command

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Inter-device link aggregation implements reliable transmission of data traffic and mutual backup for stack member switches. However, the bandwidth of stack cables between stacked devices is limited. Which of the following methods can be used to improve forwarding efficiency?

• A.Enable the function of preferentially forwarding local traffic
• B.Enable multi-active detection (MAD) for the stack
• C.Use a stack card to connect the devices to be stacked
• D.Configure the system MAC address switchover for the stack

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Synchronization between LDP and IGP suppresses reachable IGP route advertisement to implement network convergence and ensure LDP and IGP are along the same path. This minimizes traffic loss and improves network reliability.

• A.TRUE
• B.FALSE

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Broadcast-type network, starting after the establishment of the relationship, the election of the neighboring
DIS

• A.False
• B.True

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