Test Online Free Cisco 300-420 Exam Questions and Answers
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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?
Answer: Explanation:
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
Question 32Selectable Answer
An engineer uses Postman and YANG to configure a router with:
✑ OSPF process ID 400
✑ network 192.168.128.128/25 enabled for Area 0
Which get-config reply verifies that the model set was designed correctly?
A)
B)
C)
D)
Answer:
Question 33Selectable Answer
Refer to the exhibit.
A customer experienced an unexpected network outage when the link between R1 and R2 went down. An architect must design a solution to ensure network continuity in the event the link fails again.
Which solution should the design include?
Answer:
Question 34Selectable Answer
Refer to the exhibit.
An architect must design a solution to connect bank site A with bank site B and support:
✑ network operation center monitoring end-to-end L3VPN and L2VPN traffic
✑ company adding thousands of routes in the next two years
Which two BGP solutions must the design include? (Choose two.)
Answer:
Question 35Selectable Answer
An enterprise customer has these requirements:
✑ end-to-end QoS for the business-critical applications and VoIP services based on CoS marking.
✑ flexibility to offer services such as IPv6 and multicast without any reliance on the service provider.
✑ support for full-mesh connectivity at Layer 2.
Which WAN connectivity option meets these requirements?
Answer:
Question 36Selectable Answer
A customer plans to adopt distributed QoS in their enterprise WAN. The policy must allow for individual packet marking according to the type of treatment required and for forwarding based on hop-by-hop treatment locally defined on each device.
Which technology must the customer select?
Answer:
Question 37Selectable Answer
A customer is discussing QoS requirements with a network consultant. The customer has specified that end-to-end path verification is a requirement.
Which QoS solution meets this requirement?
Answer:
Question 38Selectable Answer
How is internet access provided to a WAN edge router that is connected to a MPLS transport link?
Answer:
Question 39Selectable Answer
Which nonproprietary mechanism can be used to automate rendezvous point distribution in a large PIM domain?
Answer:
Question 40Selectable Answer
A customer's current Layer 2 infrastructure is running Spanning Tree 802.1d, and all configuration changes are manually implemented on each switch.
An architect must redesign the Layer 2 domain to achieve these goals:
✑ reduce the impact of topology changes
✑ reduce the time spent on network administration
✑ reduce manual configuration errors
Which two solutions should the architect include in the new design? (Choose two.)
Answer:
Question 41Selectable Answer
What is the purpose of a Cisco SD-Access underlay network?
Answer:
Question 42Selectable Answer
An engineer must design an in-band management solution for a customer with branch sites. The solution must allow remote management of the branch sites using management protocols over an MPLS WAN. Queueing is implemented at the remote sites using these classes:
How must the solution prioritize the management traffic over the WAN?
Answer:
Question 43Selectable Answer
Which function does the Cisco SD-Access intermediate node perform?
Answer:
Question 44Selectable Answer
An engineer is designing a network for a customer running a wireless network with a common VLAN for all APs. The customer is experiencing unicast flooding in the Layer 2 network between the aggregation and access layers. The customer wants to reduce the flooding and improve convergence time.
Which solution meets these requirements?
Answer:
Question 45Selectable Answer
Refer to the exhibit.
An engineer Is designing a multicampus Layer 3 Infrastructure using EIGRP as the routing protocol. The design must provide quick replies to queries In the event of a downlink, prevent unnecessary queries, and ensure that traffic does not unnecessarily transit the access layer.
Which two actions must the engineer take for the network design? (Choose two.)
