Online Access Free H12-261_V3.0 Exam Questions

The BGP protocol is an inter-domain routing protocol. The following description of the protocol is correct:

• A.The BGP protocol adopts a reliable transmission protocol
• B.It does not support neighbor authentication
• C.Supports rich routing strategies
• D.Support automatic discovery of neighbors

in command aggregateate ipv4-address { mask | mask-length } [as-set I attribute-policy route-policy-name1 ldetail- suppressed I origid-policy route-policy-name2 |suppress-policy route-policy-name3], multiple parameters can be used toAffects summary routes and their results. Which description is correct about this command?

• A.If As is configured-set, the AS_PATH of the summary route contains the AS path information of all specific routes to prevent routing loops
• B.If Origin is configured-policy, only with Route Only the detailed routes matching the policy can participate in the aggregation
• C.If Attrbute-policy is configured, you can change the attributes of the aggregated route
• D.If Supp is configuredress-policy also generates aggregated routes. The if-match clause in Route-policy is used to select suppressed detailed routes. Detailed routes matching the Route-policy will still be advertised to other BGP neighbors

As shown in the figure, R1, R2 and R3 run OSPP at the same time and announce their respective loopback ports. The following description is wrong.

• A.filter-policy can be used on R2 expoThe rt command filters the loopback route of R3
• B.Area is available on R2 Use filter in 1r expot command to filterR3 loopback route
• C.filter-policy can be used on R1 import filters the loopback route of R3
• D.R2 can be used in Area use filter in 0r import command to filter the loopback route of R3

As shown below,R1 and R2 have established a Level 2 neighbor relationship. The key configuration is as follows. The following statement about the routing entry of R2 is correct

• A.The 2021:/64 router will appear in the IP routing table
• B.2019: The /64 router will appear in the IP routing table
• C.The 2022:/64 router will appear in the IP routing table
• D.2020: The /64 router will appear in the IP routing table

Which of the following scenarios is not suitable for deploying interface policy routing?

• A.Modify the next hop of traffic originating locally
• B.On the core switch, the traffic accessing each other between the internal network and the external network is pulled to the AC device connected by the side.
• C.On the core switch, the mutual access traffic between the intranet and the extranet is pulled to the side-mounted security detection device
• D.In the scenario where the enterprise network has multiple ISP exits, different network segments of the intranet access the Internet through different ISP exits.