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  1. Home
  2. Cisco Certification
  3. 300-420 Exam
  4. Cisco.300-420.v2025-07-17.q269 Dumps
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Question 161

Drag and drop the characteristics from the left onto the correct telemetry mode on the right.

Correct Answer:

In a dial-in mode, the destination initiates a session to the router and subscribes to data to be streamed. Dialin mode is supported over gRPC in only 64-bit platforms In a dial-out mode, the router initiates a session to the destinations based on the subscription. All 64-bit IOS XR platforms (except for NCS 6000 series routers) support gRPC and TCP protocols. All 32-bit IOS XR platforms support only TCP.
Reference:
https://www.cisco.com/c/en/us/td/docs/iosxr/asr9000/telemetry/b-telemetry-cg-asr9000-61x/b-telemetry-cgasr9000-
61x_chapter_010.html#id_36445
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Question 162

Refer to the exhibit. An architect is designing an EIGRP solution based on these requirements:
- Traffic forwarding should use the best two paths while all links are
available
- Single path failure must not impact traffic between branch and HQ
Which solution must the architect select?

Correct Answer: C
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Question 163

Refer to the exhibit.

Refer to the exhibit. The connection between SW2 and SW3 is fiber and occasionally experiences unidirectional link failure. An architect must optimize the network to reduce the change of layer2 forwarding loops when the link fails. Which solution should the architect include?

Correct Answer: B
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Question 164

Refer to the exhibit.

An architect must design a solution that uses the direct link between R1 and R2 for traffic from 10.10.10.0/24 toward network 10.10.20.0/24. Which solution should the architect include in the design?

Correct Answer: D
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Question 165

Refer to the exhibit. The failover time of ISP-2 is significantly shorter than ISP-1 when an interface on the ISP router toward the campus network fails. Which solution minimizes the downtime to the sub-second?

Correct Answer: D
BFD provides sub-second failure detection (https://howdoesinternetwork.com/2018/bfd), and next-hop tracking is enabled in IOS by default.
(https://www.cisco.com/c/en/us/td/docs/ios/12_2sb/feature/guide/sbbnhop.html)
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