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Cisco 300-420 Certification Exam, also known as Designing Cisco Enterprise Networks (ENSLD), is an advanced-level certification exam that focuses on designing complex enterprise networks. Designing Cisco Enterprise Networks certification is designed for network professionals who have the skills and knowledge required to plan, design, deploy, and manage complex enterprise network solutions.
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Cisco 300-420 exam is a challenging certification exam that requires a deep understanding of network design principles and Cisco technologies. Candidates who pass 300-420 exam will be well-equipped to design and implement complex enterprise networks, and will be one step closer to obtaining the highly valued CCDE certification.
Cisco 300-420 exam is an ideal certification for IT professionals who are looking to gain a competitive edge in the job market. 300-420 Exam is designed to test the candidate's knowledge and skills in designing and implementing complex enterprise networks using Cisco technologies. 300-420 exam is also designed to test the candidate's ability to troubleshoot complex network problems, as well as their ability to design and implement scalable and reliable network solutions.
NEW QUESTION # 253
Refer to the exhibit. An architect reviews the low-level design of a company's enterprise network and advises optimizing the STP convergence time. Which functionality must be to Gi1/0/1-10 to follow the architect's recommendation?
Answer: C
Explanation:
PortFast is a spanning tree's functionality, once configured it avoids the STP states (blocking, listening, learning, forwarding) every time any port among Gi1/0/1 Gi1/0/10 is connected again.
NEW QUESTION # 254
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: C
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
NEW QUESTION # 255
Which protocol is deployed through LAN automation to build node-to-node underlay adjacencies in SDA?
Answer: A
NEW QUESTION # 256
Which two considerations must be made regarding the overlay network for a Cisco SD-Access architecture? (Choose two.)
Answer: C,D
Explanation:
In SD-Access, the overlay network provides logical segmentation (virtual networks) over a common underlay. Using overlapping IP subnets across multiple virtual networks can create routing and interoperability complexity, especially when inter-VN communications or shared services are required, which increases operational burden. Therefore, avoiding overlapping IP address spaces across overlay networks simplifies provisioning, routing, and troubleshooting.
This aligns with standard SD-Access guidance that encourages distinct address spaces per virtual network to maintain clear separation and predictable behavior.
Scalable Group Tags (SGTs) are Cisco TrustSec mechanisms used to implement policy-based segmentation and microsegmentation within and across virtual networks. They enable data-plane isolation and fine-grained access control between devices based on their SGT, supporting constraint-based communication even within the same virtual network. This is a core capability of SD-Access for enforcing segmentation policies at the data plane.
NEW QUESTION # 257
Refer to the exhibit. An architect is designing a multicampus infrastructure and requires the best possible convergence within the topology. The design must support an aggregation or core layer switch failure or a link failure, and the failure must have no impact on a VoIP call traversing the infrastructure. Which solution must the architect select?
Answer: B
Explanation:
A redundant triangle topology enables equal-cost multipath (ECMP) routing, ensuring that traffic (including VoIP calls) is instantly rerouted over another path without waiting for EIGRP convergence, thus achieving the fastest possible convergence and no call disruption.
NEW QUESTION # 258
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