Exam 300-420 Pass Guide | Vce 300-420 Format

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To pass the Cisco 300-420 Exam, you must have a strong understanding of network design principles and concepts, as well as hands-on experience with enterprise-level network solutions. You should also have a good understanding of Cisco network technologies, including Cisco IOS, Cisco Nexus, and Cisco ACI.

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Cisco 300-420 Exam is a 90-minute test that consists of around 60-70 questions. 300-420 exam format includes multiple-choice questions, drag and drop questions, and simulation-based questions. 300-420 exam can be taken at any Pearson VUE testing center worldwide, and candidates can register for the exam online. To succeed in the exam, candidates should have a good understanding of Cisco enterprise network technologies and solutions, as well as experience in designing enterprise networks.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q195-Q200):

NEW QUESTION # 195
A company must automate a set of complex changes aligned with DR testing in the network. These changes are specific, and the DR playbook will be adjusted in the future. The playbook has diverse routing and switching assets in scope as well as multiple vendor and hardware platforms. A developer will create a thin, web front-end microservice and integrate with an Open daylight controller to push changes to the network.
Which YANG model should be used?

Answer: C

Explanation:
An open YANG model is the correct choice because the automation scope is multivendor and the workflow must be reusable across diverse routing and switching platforms. Native vendor models expose platform- specific details and are valuable when a feature is unique to one operating system, but they create code branching and operational inconsistency when many vendors and hardware families are in scope. The question also says the DR playbook will be adjusted in the future, which argues for a model that reduces redesign whenever a device vendor or platform changes. Open models, such as IETF or OpenConfig where supported, provide common schema structures for standard network functions and allow the microservice and controller integration to remain cleaner. A custom individualized model would increase development and maintenance burden, not reduce it, unless there is a very specific abstraction layer requirement. Using a single native vendor model cannot support the stated multivendor environment. The professional design is to use open models wherever coverage is sufficient, then fall back to native models only for unsupported platform- specific capabilities. Reference topics: YANG model selection, OpenConfig, IETF YANG, Cisco native YANG, multivendor automation.


NEW QUESTION # 196
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 # 197
How does a model-driven telemetry dial-out approach function?

Answer: C

Explanation:
The dial-out model-driven telemetry approach is initiated by the network device, not by the collector. Cisco IOS XE telemetry documentation describes configured subscriptions as dial-out because the publisher, meaning the router or switch, initiates the connection to the configured receiver. After the session is established, the device streams the subscribed YANG-modeled data at the configured cadence or when the configured on-change condition occurs. This model is useful when the telemetry collector is a fixed destination and the network operator wants the device to maintain the outbound session automatically. Option B describes dial-in telemetry, where the collector or subscriber connects to the device and requests the subscription. Option C is also dial-in oriented because the collector initiates the session. Option D is close in wording, but the key design point is that the session is based on an already configured subscription rather than a negotiation process. Reference topics: model-driven telemetry, configured subscriptions, dial-out telemetry, YANG-push, telemetry collectors.


NEW QUESTION # 198
Which feature is supported on the Cisco vEdge platform?

Answer: B


NEW QUESTION # 199
An architect must address sustained congestion on the access and distribution uplink of network.
QoS has already been implemented and optimized, but it is no longer effective in ensuring optimal network performance.
Which two solutions should the architect use to improver network performance? (Choose two)

Answer: D,E


NEW QUESTION # 200
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