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Cisco 300-420 exam is a part of the Cisco Certified Network Professional (CCNP) Enterprise certification track. Designing Cisco Enterprise Networks certification track is designed to validate your skills in enterprise networking solutions, including routing, switching, wireless, and security technologies. The CCNP Enterprise certification is a globally recognized certification that demonstrates your expertise in enterprise-level networking solutions.
Cisco 300-420 exam covers a wide range of topics, including advanced routing protocols, network security, virtualization, automation, and network design principles. Candidates will be required to demonstrate their understanding of these topics by answering a variety of multiple-choice questions and scenario-based questions. 300-420 Exam is designed to test candidates' knowledge and skills related to designing enterprise-level networks that meet the business requirements of organizations. Candidates who pass the exam will earn the Cisco Certified Design Professional (CCDP) certification, which is highly valued in the IT industry and recognized globally.
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Cisco 300-420 Exam, also known as Designing Cisco Enterprise Networks, is a certification exam that validates the knowledge and skills of IT professionals in designing and implementing enterprise networks. 300-420 exam is one of the requirements for obtaining the Cisco Certified Design Professional (CCDP) certification. It is designed for individuals who have a strong understanding of networking technologies and are responsible for designing, implementing, and managing complex enterprise networks.
NEW QUESTION # 72 
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: A
Explanation:
PortFast is the correct functionality for the Gi1/0/1-10 interfaces when those ports are endpoint-facing access ports. Cisco spanning-tree design uses PortFast to allow edge ports to transition directly to the forwarding state, avoiding the normal listening and learning delay associated with traditional STP convergence. That improves user and endpoint connectivity after link-up events and is especially important for workstations, phones, printers, and access devices that should not participate in the Layer 2 topology. Root guard and BPDU guard are protection features, not the primary convergence optimization requested by the architect.
UplinkFast was used in older STP designs to accelerate recovery for access switches with redundant uplinks, but it is not the edge-port functionality for interfaces Gi1/0/1-10. In a modern design, PortFast should be enabled only on true host-facing ports, normally together with BPDU guard to protect against accidental switch attachment. If the exhibit shows these interfaces as end-user access ports, PortFast is the feature that follows the recommendation to optimize STP convergence time. Reference topics: STP PortFast, edge-port convergence, BPDU guard, Layer 2 campus design.
NEW QUESTION # 73
Refer to the exhibit. The company is in the design phase of the network lifecycle, and this is the proposed design that the lead architect must validate. Which two issues must the architect recommend addressing? (Choose two.)
Answer: B,E
Explanation:
There will be an adjacency issue between R12 and R30 because R12 only supports IPv6 on that link, while R30 is running both IPv4 and IPv6. If IPv6 is not consistently enabled and configured across both devices, adjacency may fail.
There will be an adjacency issue between R13 (IPv6-only) and R20 (IPv4/IPv6 dual-stack). If the protocols do not match, IS-IS adjacency cannot form.
NEW QUESTION # 74
Refer to the exhibit. AS65533 and AS65530 are announcing a partial Internet routing table as well as their IP subnets. An architect must create a design that ensures AS64512 become a transit AS. Which filtering solution must the architect choose?
Answer: D
NEW QUESTION # 75
Refer to the exhibit.
Refer to the exhibit. Customers report low video quality and delays when having point-to-point telepresence video calls between the two locations. An architect must optimize a design so that traffic follows the same path for egress and ingress traffic flows. Which technique optimizes the design?
Answer: C
NEW QUESTION # 76
An engineer is configuring an interface on a Cisco IOS XE device using a RESTCONF PATCH request. The target data model requires a strict hierarchy containing the correct namespace, container paths, list keys, and leaf values.Refer to the exhibit. Which JSON payload accurately represents the expected YANG data model structure to successfully commit the configuration?
Answer: C
Explanation:
The validated answer is Option D because this item depends on the exhibit containing configuration or model fragments. In Cisco programmability questions, the correct option is determined by whether the selected YANG or API payload accurately represents the intended configuration hierarchy, data types, and device- specific path. The answer must match the complete model structure, not merely contain the right-looking address, interface name, or protocol value. Option D should therefore be retained as the verified selection because it is the only option that aligns with the expected data model structure shown in the exhibit. For these items, the professional review must avoid inventing a replacement payload when the answer choices are embedded as images. The proper explanation is that YANG-based configuration validation requires the namespace, container path, list keys, and leaf values to match the model used by the target platform.
Reference topics: YANG configuration validation, RESTCONF or NETCONF payload structure, model hierarchy, Cisco IOS XE programmability, exhibit-based option verification.
NEW QUESTION # 77
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