300-420 Test Question | 300-420 Frenquent Update

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Cisco 300-420 Exam Syllabus Topics:

SectionObjectives
Topic 1: Enterprise Network Design Principles- Scalability and high availability design
- Design methodologies and best practices
Topic 2: Enterprise Campus Network Design- Spine-leaf and hierarchical design models
- Campus LAN architecture
Topic 3: Network Services Design- Routing protocols design (OSPF, EIGRP, BGP)
- Multicast and QoS design considerations
Topic 4: Security Design in Enterprise Networks- VPN and perimeter security architecture
- Segmentation and access control design
Topic 5: WAN and Edge Connectivity Design- SD-WAN architecture and design considerations
- Traditional WAN and internet edge design
Topic 6: Network Automation and Programmability- Controller-based networking design
- API-driven network automation concepts

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Cisco 300-420 Frenquent Update & Certification 300-420 Test Questions

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Cisco Designing Cisco Enterprise Networks Sample Questions (Q410-Q415):

NEW QUESTION # 410
What is the purpose of a TLOC extension in a Cisco SD-WAN network fabric?

Answer: B


NEW QUESTION # 411
Which control-plane technology allows the same subnet to exist across multiple network locations?

Answer: B

Explanation:
Section: WAN for Enterprise Networks


NEW QUESTION # 412
An engineer must use YANG with an XML representation to configure a Cisco IOS XE switch with these specifications:
* IP address 10.10.10.10/27 configured on the interface GigabitEthernet2/1/0
* connectivity from a directly connected host 10.10.10.1/27
Which YANG data model set must the engineer choose?

Answer: C


NEW QUESTION # 413
An engineer needs to design a management network for the company. The solution has these requirements:
* overlay network does not cause routing issues
* ease of troubleshooting for the operations team
* devices are accessed securely
Which solution meets these requirements?

Answer: A

Explanation:
The correct solution is a management VRF with SSH keys for device access. A management VRF creates a separate routing and forwarding table for management traffic, keeping administrative reachability isolated from production and overlay routes. That directly satisfies the requirement that the overlay network must not cause routing issues and makes troubleshooting easier for operations teams because management reachability can be validated independently. Cisco VRF design uses separate routing tables to isolate traffic and can support overlapping addresses or independent routing policy. For secure device access, SSH with key-based authentication provides encrypted administrative sessions and stronger authentication than clear-text or password-only methods. Private VLANs and ordinary VLANs provide Layer 2 separation but do not create independent routing tables. TACACS+ and RADIUS are AAA systems; they are useful but do not define the management transport architecture. Separate physical interfaces can be useful out-of-band, but the best match for overlay isolation and operational simplicity is management VRF plus SSH keys. Reference topics:
management VRF, secure device access, SSH public-key authentication, routing-table isolation, enterprise management design.


NEW QUESTION # 414
An engineer is designing a WAN solution for a customer with teams in different branch locations that need to communicate The teams also need to access enterprise applications hosted in the data center and the cloud The customer also must provide guests with connectivity to the internet only, and the internet gateway is located in the data center Which solution must the engineer choose?

Answer: C


NEW QUESTION # 415
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