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  1. Home
  2. Cisco Certification
  3. 300-420 Exam
  4. Cisco.300-420.v2025-11-03.q115 Dumps
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Question 81

An infrastructure team is concerned about the shared memory utilization of a device, and for this reason, they need to monitor the device state.
Which solution limits impact on the device and provides the required data?

Correct Answer: C
There are two types of subscriptions: periodic and on-change. With periodic subscription, data is streamed out to the destination at the configured interval. It continuously sends data for the lifetime of that subscription. With on-change, data is published only when a change in the data occurs such as when an interface or OSPF neighbor goes down.
https://developer.cisco.com/docs/ios-xe/#!streaming-telemetry-quick-start-guide/streaming- telemetry
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Question 82


Refer to the exhibit. A network engineer working for a private service provider with an employee ID: 4670:71:
451 must design a BGP solution based on:
* All traffic originating from AS100 must pass through AS200 to reach the NTP and DHCP server
* When a link failure occurs between R3 and R4, traffic must follow the R2-R9 link to reach the NTP and DHCP server.
Which solution must the design include?

Correct Answer: D
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Question 83

Which component of Cisco SD-Access integrates with Cisco DNA Center to perform policy segmentation and enforcement through the use of security group access control lists and security group tags?

Correct Answer: C
Policy management with identity services is enabled in an SD-Access network using ISE integrated with Cisco DNA Center for dynamic mapping of users and devices to scalable groups.
https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design- guide.html#CiscoDNACenterSoftware
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Question 84

Which topology within a network underlay eliminates the need for first hop redundancy protocols while improving fault tolerance, increasing resiliency, and simplifying the network?

Correct Answer: D
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Question 85

What are two purposes of the RPF check in multicast routing? (Choose two.)

Correct Answer: A,B
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