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Cisco 300-420 certification exam is a highly sought-after credential for IT professionals who aim to enhance their skills in designing enterprise networks. Designing Cisco Enterprise Networks certification exam is designed to test the candidate's knowledge and skills in designing Cisco enterprise networks. 300-420 Exam is part of the Cisco Certified Design Professional (CCDP) certification track and is intended for network architects, network designers, and other IT professionals who work in the field of networking.

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Preparation Process for Cisco 300-420 Exam

Cisco recommends the training course, which is Designing Cisco Enterprise Networks v1.0, for the individuals preparing to take the Cisco 300-420 exam. This training option equips them with the skills and knowledge required for designing enterprise networks. The candidates can take this course as the instructor-led training or e-learning education. The details of how to access it are available on the official website. Apart from this variant, the individuals can also explore other resources, such as video tutorials, practice tests, and more. All of them are designed to prepare the applicants for achieving success in their certification test on the first try.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q81-Q86):

NEW QUESTION # 81
Refer to the exhibit.

An architect is designing a routing solution for a company. The new design will add a circuit routers C and D to protect against loss of connectivity to 10.0.4.0/24 during a link failure between routers B and D. Which solution must the architect choose?

A. Stub receive-only
B. Stub redistributed
C. Stub connected
D. Stub leak-map

Answer: C

Explanation:
The EIGRP stub connected option is appropriate when the new circuit is intended to protect reachability to a connected subnet without turning the router into a broad transit point. EIGRP stub routing is used to limit the routes a router advertises to its neighbors and to constrain EIGRP query scope. A stub router can advertise connected routes, summary routes, redistributed routes, or combinations depending on the configured stub option. In this scenario, the new C-to-D circuit protects connectivity to 10.0.4.0/24 during a failure between B and D. Advertising the connected network through the stub behavior gives upstream routers a valid alternate route while still preventing unnecessary transit advertisements. Stub redistributed would be used for routes learned from another routing process, not for directly connected networks. Stub receive-only would prevent the router from advertising any routes, which would not protect reachability. Stub leak-map is used for controlled exceptions and is unnecessary if the required route is a connected subnet. Reference topics: EIGRP stub routing, connected route advertisement, query boundary design, DUAL stability.

NEW QUESTION # 82
A client is moving to Model-Driven Telemetry and requires periodic updates. What must the network architect consider with this design?

A. The primary push update is sent immediately and cannot be delayed.
B. Empty data subscriptions do not generate empty update notifications.
C. Updates that contain changes within the data are sent only when changes occur.
D. Periodic updates include a full copy of the data that is subscribed to.

Answer: D

Explanation:
For model-driven telemetry with periodic updates, the architect must understand that each periodic update sends the subscribed data at the configured interval. Cisco telemetry guidance distinguishes periodic subscriptions from on-change subscriptions. A periodic subscription streams a full copy of the subscribed data element or table at each interval, even if the underlying state has not changed. That behavior is useful when the collector needs regular time-series samples, trending, or baseline monitoring, but it creates predictable bandwidth and collector-load requirements. On-change subscriptions are different: they publish updates when the subscribed state changes and are more efficient for state changes such as interface status, memory thresholds, or protocol adjacency m ovement. Empty subscription behavior and initial update timing may matter in specific implementations, but they are not the main design consideration in this question. Since the customer requires periodic updates, the design must size the transport, collector, retention system, and subscription intervals around repeated full data delivery. Reference topics: model-driven telemetry, periodic subscription, on-change subscription, YANG-modeled operational data, collector sizing.

NEW QUESTION # 83
Which two statements about VRRP advertisements are true? (Choose two.)

A. They are sent only from the master router.
B. They are sent every three seconds by default.
C. They include priority information.
D. They include VRRP timer information.
E. They are sent from the master router and standby routers.

Answer: A,C

Explanation:
The virtual router master sends VRRP advertisements to other VRRP routers in the same group.
The advertisements communicate the priority and state of the virtual router master. The VRRP advertisements are encapsulated in IP packets and sent to the IP Version 4 multicast address assigned to the VRRP group. The advertisements are sent every second by default.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/xe-3s/fhp-xe-3s- book/fhp-vrrp.html#GUID-F08F171E-D151-448B-B58C-D2ED17E11E9F

NEW QUESTION # 84

Refer to the exhibit. A customer experienced an unexpected network outage when the link between R1 and R2 went down. An architect must design a solution to ensure network continuity in the event the link fails again.
Which solution should the design include?

A. Make Area 0 L2-only
B. Make R3 an L1L2 router
C. Make R31 an L1 router.
D. Make R11 an L2 router.

Answer: B

NEW QUESTION # 85
What is the purpose of Cisco Catalyst SD-WAN Cloud OnRamp?

A. It creates Cisco Catalyst SD-WAN application-aware policies and route-critical applications.
B. It brings secure and private connectivity agnostics to all types of links and providers.
C. It delivers secure access to business-critical applications across a multicloud environment.
D. It simplifies and automates the process of connecting on-premises environments to the cloud.

Answer: D

Explanation:
Cisco Catalyst SD-WAN Cloud OnRamp is designed to automate and streamline the connection between on-premises sites and cloud environments, making it simple to extend the SD-WAN fabric to public clouds and SaaS providers.

NEW QUESTION # 86
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