Two EBGP neighbors connected by two parallel cables. What method will you use to achieve bidirectional load sharing between two EBGP neighbors connected through these two parallel serial cables?

• A.Use the command at both ends "ebgp-load-balance
• B.Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS must have two equal-cost paths to the EBGP neighbor loopback address. You need to use the command "next-hop-local".
• C.Configure the EBGP neighbor relationship with the loopback interface as the update source. The IGP in each AS needs to import two equal-cost paths to the EBGP neighbor loopback address. You need to use the commands ebgp-max-hop and next- Hop-local
• D.Configure the loopback interface to establish an EBGP neighbor relationship and configure EBGP Multi-hop. Configure the loopback interface as the update source, and then use IGP to implement equal-cost path load sharing between addresses.
• E.Without any method, BGP automatically implements load sharing between different autonomous systems on the available links.

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We can use basic community-filters or advanced community-filters to filter BGP routes.
Which of the following tools make the advanced community-filter more flexible than the basic community- filters?

• A.AS-path-filter
• B.IP-prefix
• C.Regular expression
• D.ACL

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Which of the following types of routes are used to advertise external routes in BGP EVPN?

• A.Type1
• B.Type2
• C.Type4
• D.Type5
• E.Type3

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Which of the following description is wrong about BGP routing selection?

• A.See the following entry in the BGP routing table: * 172.16.1.11/32 0.0.0.0 10 0 ? Indicates that the route is available non-optimal.
• B.Non-aggregated routes take precedence over aggregated routes.
• C.The route that is unreachable for next_hop is invalid and does not participate in the preference.
• D.If the PrefVal and Local_Preference are equal, if the locally generated route, the IBGP route, and the BGP preference of the EBGP route are used, the valid indication generated by this priority takes precedence.

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Router HW is enabled with OSPF and the role of the router HW is ABR, and abr-surmnary is configured. Which classes of LSA will be aggregated?

• A.Class 5 LSA
• B.Class 4 LSA
• C.Class 2 LSA
• D.Class 1 LSA
• E.Class 3 LSA

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