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To prepare for the Cisco 300-420 exam, candidates should have a strong understanding of Cisco networking technologies, as well as experience working with enterprise networks. Cisco offers a variety of training courses and study materials to help candidates prepare for the exam, such as self-paced e-learning modules, instructor-led training courses, and practice exams. Passing the Cisco 300-420 Exam is a valuable credential for IT professionals who are looking to advance their careers in network design and architecture.
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Cisco 300-420 Exam is designed to test the knowledge and skills of IT professionals in designing enterprise networks that are scalable, reliable, and secure. Passing 300-420 exam demonstrates that a candidate has a deep understanding of Cisco technologies and can design complex enterprise networks that meet the needs of modern businesses. Earning the CCDP certification can open up new career opportunities for IT professionals and provide them with the knowledge and skills needed to design and implement advanced enterprise networks.
NEW QUESTION # 405
An engineer must propose a QoS architecture model that allows an application to inform the network of its traffic profile and to request a particular type of service to support its bandwidth and delay requirements. The application requires consistent and dedicated bandwidth end to end. Which QoS architecture model meets these requirements?
Answer: D
NEW QUESTION # 406
Refer to the exhibit. An enterprise uses dual-homed MPLS connectivity for critical branch locations and single-homed MPLS connectivity for smaller, less essential branch sites. Against the enterprise security policy, Branch A experiences traffic flow from Branch B toward HQ when the MPLS2 network fails. Which technique resolves this issue?
Answer: B
Explanation:
A BGP as-path filter on Branch A that only advertises its own locally originated prefixes prevents Branch A from becoming a transit path for Branch B's traffic to HQ during MPLS2 failure. This enforces policy and eliminates the undesired traffic flow.
NEW QUESTION # 407
Which control-plane protocol is used to map an endpoint to a location in a Cisco SD-Access network?
Answer: B
NEW QUESTION # 408
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: D
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 # 409
Refer to the exhibit. A company wants to minimize interruptions to the data plane forwarding, avoid unnecessary route recomputation, and conserve router resources during router reloads.
Which solution must the company choose?
Answer: D
Explanation:
Graceful restart allows routers to maintain data plane forwarding and avoid unnecessary route recomputation during control plane restarts or router reloads, conserving router resources and minimizing traffic interruption.
NEW QUESTION # 410
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