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WAN for Enterprise Networks

This topic focuses on 20% of the overall content and validates the applicants’ competence in the following areas:

• Explaining the architecture for Cisco SD-WAN, including management plane orchestration plan, data plane, security, control plane, provisioning, and on-boarding;
• Comparing the connectivity options for WAN, including MPLS L3 VPN, L2 VPN, 4G/5G, DWDM, Metro Ethernet, and SD-WAN customer edge;
• Explaining the design considerations for Cisco SD-WAN (LAN design, control plane design, overlay design, scalability, redundancy, high availability, security design, multicast & QoS over the SD-WAN fabric).
• Designing site-to-site VPN, such as DMVPN, MPLS L3 VPN, L2 VPN, IPsec, GET VPN & GRE;
• Designing high availability for enterprise WAN, covering failover, multihomed, backup connectivity, as well as single-homed;

Network Services

The questions from this subject area cover 20% of the entire content and evaluate the candidates’ ability to perform the following operations:

• Explain the concepts of multicast routing (rendezvous points, source trees, shared trees, and RPF);
• Design the techniques for network management, such as prioritize network management traffic, in-band versus out-of-band, and segmented management networks;
• Choose the relevant QoS strategies to meet the requirements of customers;
• Design the policies for end-to-end QoS, including queuing, shaping, policing, marking & classification;
• Design SSM, MSDP, and PIM bi-directional multicast services.

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300-420 Actual Questions | 300-420 Exam Flashcards

Our 300-420 study materials are designed by many experts in the field of qualification examination, from the user's point of view, combined with the actual situation of users, designed the most practical learning materials, so as to help customers save their valuable time. Whether you are a student or a working family, we believe that no one will spend all their time preparing for 300-420 Exam, whether you are studying professional knowledge, doing housework, looking after children, and so on, everyone has their own life, all of which have to occupy your time to review the exam.

Prerequisites for Cisco 300-420 Exam

The target audience for this certification exam is those individuals who work as a Network Engineer, a Network Design Engineer, and a System Administrator. It is also designed for any professional in the field of IT looking to validate their knowledge and skills in enterprise networking & security. This Cisco test does not have any official prerequisites, so the potential candidates do not need to fulfill the working experience requirement or hold any certificates. However, the applicants must develop competence in the exam topics before taking it.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q148-Q153):

NEW QUESTION # 148
What are two valid scaling techniques when an EIGRP network is designed that consists of more than 1000 routers? (Choose two.)

• A. Implement multiple EIGRP autonomous systems
• B. Used sub-second timers
• C. Modify delay parameters on the links
• D. Use structured hierarchical topology with route summarization
• E. Use the distribute-list command to filter routes

Answer: A,D
NEW QUESTION # 149
Which control-plane technology allows the same subnet to exist across multiple network locations?

• A. VXLAN
• B. ISE mobility services
• C. FabricPath
• D. LISP

Answer: A
NEW QUESTION # 150
Drag and drop the characteristics from the left onto the correct telemetry mode on the right.
Answer: ** Explanation:

Explanation

In a dial-in mode, the destination initiates a session to the router and subscribes to data to be streamed. Dialin mode is supported over gRPC in only 64-bit platforms In a dial-out mode, the router initiates a session to the destinations based on the subscription. All 64-bit IOS XR platforms (except for NCS 6000 series routers) support gRPC and TCP protocols. All 32-bit IOS XR platforms support only TCP.
NEW QUESTION # 151**
Which switch feature prevents traffic on a LAN from being overwhelmed by continuous multicast or broadcast traffic?

• A. VTP pruning
• B. storm control
• C. port security
• D. VLAN trunking

Answer: B Explanation:
A traffic storm occurs when packets flood the LAN, which creates excessive traffic and degrades network performance. The traffic storm control feature prevents LAN ports from being disrupted by a broadcast, multicast, or unicast traffic storm on physical interfaces from either mistakes in network configurations or from users issuing a DoS attack.
Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/ book/storm.pdf
NEW QUESTION # 152
Drag and drop the characteristics from the left onto the configuration protocols they describe on the right.
Answer: ** Explanation:

NEW QUESTION # 153
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