Pass Guaranteed Quiz 300-420 - Authoritative Designing Cisco Enterprise Networks 100% Correct Answers

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Cisco 300-420 certification exam is a comprehensive test that covers a broad range of topics related to designing enterprise networks. 300-420 exam focuses on network design principles and concepts, including advanced addressing and routing solutions, advanced enterprise campus networks, WAN, security, and network services. 300-420 Exam also tests the candidate's knowledge of network virtualization technologies, network automation, and network programmability.

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Cisco 300-420 exam is a 90-minute test that consists of 60-70 multiple-choice questions. To pass the exam, candidates must demonstrate their proficiency in designing and implementing complex enterprise-level networks. 300-420 exam is available in English and Japanese and can be taken at any Pearson VUE testing center around the world. Successful completion of 300-420 Exam demonstrates that an IT professional has the skills and knowledge necessary to design and implement complex enterprise networks that meet the needs of modern businesses.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q422-Q427):

NEW QUESTION # 422
Drag and drop the elements from the left onto the YANG models where they and used on the right.

Answer:

Explanation:

Explanation
Diagram Description automatically generated


NEW QUESTION # 423
Refer to the exhibit. A customer has two eBGP peerings from a single CE router toward two service providers. The customer has hired an architect to design a solution to ensure certain traffic enters the customer's network through interface gig0/0. Which solution must the architect include in the design?

Answer: B


NEW QUESTION # 424
How is sub-second failure of a transport link detected in a Cisco SD-WAN network?

Answer: B

Explanation:
Cisco SD-WAN detects subsecond transport failure by running BFD across the IPsec tunnels between WAN Edge routers. The WAN Edge devices form encrypted data-plane tunnels over each transport, and BFD probes those tunnels to measure liveliness, loss, latency, jitter, and path availability. When BFD detects a failed or degraded tunnel, the SD-WAN fabric can withdraw or avoid that path quickly, enabling application- aware routing and fast failover. Hellos between WAN Edge routers and vSmart controllers are control-plane mechanisms and do not directly detect data-plane transport failure between edge routers. BGP is not the SD- WAN overlay control protocol for this function; OMP is used with vSmart for overlay route and policy exchange. Link-state messages between vSmart controllers do not measure transport-path liveliness.
Therefore, BFD on IPsec tunnels is the correct failure-detection mechanism. The design should ensure that BFD timers, tunnel scale, controller policy, and SLA classes are chosen to balance fast failover with platform resources and transport stability. Reference topics: Cisco SD-WAN BFD, IPsec tunnels, transport failure detection, application-aware routing, data-plane liveliness.


NEW QUESTION # 425
An architect must develop a campus network solution that includes:
- logically segmented and isolated networks
- ability to communicate between network segments when required
- support for overlapping IP addresses
- widely available technologies to avoid purchasing specialized
equipment
Which solution must the architect select?

Answer: A


NEW QUESTION # 426
An engineer working for a private enterprise with an employee ID: 1234:56:789 is designing a QoS solution to prioritize WebEx calls from users' laptops. The company allows guests to use third-party voice solutions, which should not have any prioritization. The current solution prevents using AF31 to classify the traffic. Which solution must the engineer select?

Answer: C

Explanation:
Group Policy can apply DSCP markings directly on managed employee laptops for the WebEx application, allowing only trusted corporate endpoints to mark WebEx call traffic for prioritization.
This prevents guest devices using third-party voice applications from receiving the same QoS treatment.


NEW QUESTION # 427
......

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