In the OSPF protocol for wide area networks, what is the propagation range of a Type 1 LSA (Router LSA)?

• A.Propagates in the region where the LSA was generated and its adjacent regions.
• B.It only propagates within the area where the router that generated the LSA is located.
• C.Propagation throughout the OSPF autonomous system
• D.Spreads only within the core area (Area 0)

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In a wide area network (WAN) OSPF deployment, when a non-backbone area (such as Area 1) is not directly connected to the backbone area (Area 0), which of the following technologies needs to be deployed to solve the routing connectivity problem?

• A.OSPF NSSA area
• B.OSPF route aggregation
• C.OSPF Certification
• D.OSPF Virtual Link

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In Huawei's WAN solution, for " large files (e.g., over 10GB) transmitted across regions ", which of the following technologies can "achieve file segmentation and resume interrupted transmission, thus improving transmission reliability"?

• A.Transmit only when bandwidth is sufficient, and pause when bandwidth is insufficient.
• B.File-segmented transmission technology (splitting files into small chunks for independent transmission) + resume interrupted download
• C.Transfer the entire large file directly without splitting it into chunks; if the transfer is interrupted, it needs to be retransmitted.
• D.Reduce file transfer rate to decrease the probability of interruption.

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In the WAN BGP protocol, if "IBGP neighbors do not have route reflectors configured between them and belong to different ASs", which of the following problems will occur?

• A.Automatic conversion between IBGP neighbors to EBGP neighbors
• B.Router reflector configuration does not affect the establishment of IBGP neighbor relationships.
• C.IBGP neighbor relationships cannot be established (IBGP neighbors must belong to the same AS).
• D.IBGP neighbors are exchanging routes normally without any problems.

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In the WAN BGP protocol, if "IBGP neighbors are not configured with route reflectors or federations, and there are no direct links," which of the following problems will occur?

• A.IBGP neighbors do not forward routes to each other (split horizon mechanism)
• B.BGP route aggregation failure
• C.BGP neighbor authentication failed.
• D.BGP neighbors cannot be established.

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