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Cisco 300-420 exam, also known as Designing Cisco Enterprise Networks (ENSLD), is a certification exam that validates the knowledge and skills required for designing enterprise networks. 300-420 exam is designed for network professionals who want to demonstrate their expertise in designing scalable, secure, and robust enterprise networks using Cisco technologies. The 300-420 exam is one of the core exams required for the Cisco Certified Network Professional (CCNP) Enterprise certification.

Cisco 300-420 Exam is a crucial certification exam for network engineers, architects, and designers who are responsible for designing and implementing complex enterprise networks. Designing Cisco Enterprise Networks certification validates your skills and knowledge in enterprise network design principles and best practices, as well as your expertise in advanced routing and switching technologies, network security, wireless technologies, and network automation.

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Cisco 300-420: Designing Cisco Enterprise Networks is a certification exam that tests the knowledge of IT professionals in designing and implementing enterprise networks. 300-420 Exam is part of the Cisco Certified Network Professional (CCNP) Enterprise certification program, which is recognized globally as a standard for network engineers. Designing Cisco Enterprise Networks certification program is designed to help professionals advance their careers and stay competitive in the ever-changing IT industry.

Cisco Designing Cisco Enterprise Networks Sample Questions (Q279-Q284):

NEW QUESTION # 279
A company uses cloud-based applications for voice and video calls, file sharing, content sharing, and messaging. During business hours, these applications randomly become slow and unresponsive. However, other applications work smoothly with the current applied QoS polices. Which solution must the company choose to resolve the issue?

Answer: C

Explanation:
using NBAR to identify application and bandwidth usage, then adjust existing QoS polices would be a more simple option. Of course, B is still ok if the network admin know all traffic and bandwidth consumption by other tools, say netflow. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos_nbar/configuration/15-mt/qos-nbar-15-mt-book/nbar-protocl-discvry.html#GUID-ED1AEDA1-AE69-45C3-A77E-2AF881CA9C36
https://www.cisco.com/c/en/us/products/ios-nx-os-software/network-based-application-recognition-nbar/index.html


NEW QUESTION # 280
An architect must design a QoS model for a business-critical application that is delay-sensitive and requires high bandwidth. The company's head office hosts the application, and DMVPN tunnels protected with IPsec provide connectivity between the head office and branches. Which solution must the architect choose?

Answer: C


NEW QUESTION # 281
Which function are fabric intermediate nodes responsible for in an SD-Access Architecture?

Answer: A

Explanation:
In Cisco SD-Access, an intermediate node is an underlay transit device. Its responsibility is to provide IP reachability between fabric edge nodes, border nodes, and other fabric infrastructure roles. Intermediate nodes forward routed underlay traffic and do not perform endpoint registration, endpoint lookup, or VXLAN encapsulation for user traffic. Endpoint-to-location mapping is handled through the fabric control plane, which is based on LISP map-server and map-resolver functions. Fabric edge nodes identify connected endpoints, apply policy, act as anycast gateways, and encapsulate user traffic into VXLAN. Border nodes connect the fabric to external networks and handle traffic entering or leaving the fabric. The intermediate node is therefore comparable to a routed distribution or core transport device in a traditional hierarchical campus, except it is participating in the SD-Access underlay. It must provide stable Layer 3 reachability and appropriate MTU for encapsulated traffic but does not maintain the host tracking database or add security group information to VXLAN headers. The correct function is transporting IP packets between edge and border nodes.


NEW QUESTION # 282
Which consideration must be made when designing a Cisco SD-Access fabric underlay?

Answer: D

Explanation:
Look under "Underlay Network Design". Its the second bullet point. https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#Underlay_Network_Design


NEW QUESTION # 283
A network engineer must design a multicast solution to prevent the spoofing of multicast streams and ensure efficient bandwidth utilization. The network will be merged with another multicast domain in the future, and the merge must require minimum effort. Which two solutions meet the customer requirements? (Choose two.)

Answer: C,D

Explanation:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_pim/configuration/xe-16/imc-pim-xe-16-book/imc-msdp-im-pim-sim.html#GUID-4B201DB3-2C27-4F98-977A-A1AE9DC39C21 MSDP is a mechanism to connect multiple PIM-SM domains. The purpose of MSDP is to discover multicast sources in other PIM domains. The main advantage of MSDP is that it reduces the complexity of interconnecting multiple PIM-SM domains by allowing PIM-SM domains to use an interdomain source tree (rather than a common shared tree).


NEW QUESTION # 284
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