Cisco 300-420 Online Practice Questions and Exam Preparation

Cisco 300-420 Online Questions & Answers

• Question 201:

  Refer to the exhibit.

  

  An engineer proposed this solution for a company that requires a loop-free, Layer 2 network design. The network will run 802.1w, and all links will be 1 Gbps. If all interfaces are up as point-to-point adjacencies, what are the expected port end states based on the design?

  A. Eth1/2 on SW3 and SW4 will be in an Altn BLK state
  B. Eth1/3 on SW2 and SW3 will be in an Altn BLK state
  C. Eth1/2 on SW2 and SW3 will be in a Desg FWD state
  D. Eth1/1 on SW1 and SW2 will be in a Root FWD state
  A. Eth1/2 on SW3 and SW4 will be in an Altn BLK state

• Question 202:

  Refer to the exhibit.

  

  A network engineer is designing a network for AS100. The design should ensure that all traffic enters AS100 via link 1 unless there is a network failure. In the event of a failure, link 2 should function as the path for incoming traffic. Which solution should the design include?

  A. Modify the next-hop attribute on R3.
  B. Use AS-Path prepending on R3.
  C. Modify the next-hop attribute on R4.
  D. Use AS-Path prepending on R4.
  D. Use AS-Path prepending on R4.

• Question 203:

  What is the function of the multicast Reverse Path Forwarding check?

  A. It allows for a loop-free distribution tree from the source to receivers.
  B. It serves as an Auto RP Mapping agent.
  C. It prevents bootstrap messages from reaching all routers.
  D. It is used to discover and announce RP-set information.
  A. It allows for a loop-free distribution tree from the source to receivers.

• Question 204:

  In Cisco SD-Access, virtual networks create segmentation that allows for separation of users and resources. How is this type of segmentation described?

  A. stretched
  B. micro
  C. macro
  D. inter-VN
  C. macro

• Question 205:

  What is the purpose of an edge node in an SD-Access network fabric?

  A. Edge nodes identify and authenticate endpoints and register endpoint information with control plane nodes.
  B. Edge nodes track endpoint IDs to location mappings, along with IPv4, IPv6, or MAC addresses.
  C. Edge nodes are the gateway between the fabric domain and network outside of the fabric.
  D. Edge nodes resolve lookup requests from edge and border nodes to locate destination endpoint IDs.
  A. Edge nodes identify and authenticate endpoints and register endpoint information with control plane nodes.

• Question 206:

  Which two considerations must be made regarding the overlay network for a Cisco SD-Access architecture? (Choose two.)

  A. Virtual networks should be used for microsegmentation.
  B. Overlapping IP addresses across different overlay networks should be used to conserve IP addresses.
  C. Overlapping IP addresses across different overlay networks should be avoided for operational simplicity.
  D. SGTs should be used for data plane isolation and microsegmentation.
  E. Virtual networks should be used for data plane isolation only.
  A. Virtual networks should be used for microsegmentation.
  C. Overlapping IP addresses across different overlay networks should be avoided for operational simplicity.

• Question 207:

  Which are two advantages of a "one switch at a time" approach to integrating SD-Access into an existing brown field environment? (Choose two.)

  A. appropriate for campus and remote site environments
  B. allows simplified roll back
  C. involves the least risk of all approaches
  D. opens up many new design and deployment opportunities
  E. ideal for protecting recent investments while upgrading legacy hardware
  F. allows simplified testing prior to cutover
  A. appropriate for campus and remote site environments
  E. ideal for protecting recent investments while upgrading legacy hardware

• Question 208:

  Which two statements are true regarding SD-WAN demonstrations? (Choose two.)

  A. As a Cisco SD-WAN SE you should you should spend your time learning about the technology rather than contributing to demo innovation.
  B. Use demonstrations primarily for large opportunities and competitive situations
  C. During a demo, you should consider the target audience and the desired outcome
  D. During a demo, you should demonstrate and discuss what the team considers important details
  E. There is a big difference between demos that use a top down approach and demos that use a bottom up approach
  C. During a demo, you should consider the target audience and the desired outcome
  E. There is a big difference between demos that use a top down approach and demos that use a bottom up approach

• Question 209:

  Which two functions is the Cisco SD-Access Border Node responsible for? (Choose two.)

  A. Map users to a virtual network
  B. Advertise EID subnets
  C. Route and transport IP traffic
  D. Act as an anycast Layer 3 gateway
  E. Act as a LISP proxy tunnel router
  B. Advertise EID subnets
  E. Act as a LISP proxy tunnel router

• Question 210:

  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?

  A. WAN connectivity from a different service provider for guests
  B. firewall placed in data center that fitters any traffic from guests
  C. MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests
  D. MPLS Layer 3 VPN with a separate VRF for each branch location
  C. MPLS Layer 3 VPN with one VRF for corporate access and a separate VRF for guests