Cisco 300-420 Online Practice Questions and Exam Preparation

Cisco 300-420 Online Questions & Answers

• Question 271:

  A company is running BGP on a single router, which has two connections to the same ISP. Which BGP feature ensures traffic is load balanced across the two links to the ISP?

  A. Multihop
  B. Multipath Load Sharing
  C. Next-Hop Address Tracking
  D. AS-Path Prepending
  B. Multipath Load Sharing

• Question 272:

  An architect is designing how the company will manage the infrastructure of a large data center. The company wants to group device types for security reasons and mitigate DoS attacks. The company also wants to ensure that access to the rest of the production network is not possible if one device is compromised on the management plane.

  Which solution must the architect choose?

  A. out-of-band Ethernet
  B. out-of-band dial-up circuit
  C. in-band Ethernet
  D. in-band dial-up circuit
  A. out-of-band Ethernet

• Question 273:

  Which are the three focus areas for reinventing the WAN? (Choose three.)

  A. Execution
  B. Centralized device authentication
  C. Secure Elastic Connectivity
  D. Application Quality of Experience
  E. Cloud First
  F. Operations
  C. Secure Elastic Connectivity
  D. Application Quality of Experience
  E. Cloud First

• Question 274:

  Refer to the exhibit.

  

  1.500 active logical ports

  A customer requires a Layer 2 network designed to support:

  2.trunking of 30 VLANs

  3.convergence of less than 1 second Which Spanning Tree Protocol must be selected?

  A. PVST+
  B. CST
  C. RPVST+
  D. MSTP
  C. RPVST+

• Question 275:

  A branch office has a primary L3VPN MPLS connection back to the main office and an IPSEC VPN tunnel that serves as backup. Which design ensures that data is sent over the backup connection only if the primary MPLS circuit is down?

  A. Use EIGRP to establish a neighbor relationship with the main office via L3VPN MPLS and the IPSEC VPN tunnel.
  B. Use BGP with the multipath feature enabled to force traffic via the primary path when available.
  C. Use static routes tied to an IP SLA to prefer the primary path while a floating static route points to the backup connection.
  D. Use OSPF with a passive-interface command on the backup connection.
  C. Use static routes tied to an IP SLA to prefer the primary path while a floating static route points to the backup connection.

• Question 276:

  Refer to the exhibit. An architect reviews the low-level design of a company's enterprise network and advises optimizing the STP convergence time. Which functionality must be applied to Gi1/0/1-10 to follow the architect's recommendation?

  

  A. UplinkFast
  B. root guard
  C. BPDU guard
  D. PortFast
  D. PortFast

• Question 277:

  An architect is designing a network that will utilize the spanning tree protocol to ensure a loop-free topology. The network will support an engineering environment where it is necessary for end users to connect their own network switches for testing purposes. Which feature should the architect include in the design to ensure the spanning tree topology is not affected by these rogue switches?

  A. BPDU Skew Detection
  B. BPDU guard
  C. loop guard
  D. root guard
  D. root guard

• Question 278:

  Which two routing protocols allow for unequal cost load balancing? (Choose two.)

  A. EIGRP
  B. IS-IS
  C. BGP
  D. OSPF
  E. RIPng
  A. EIGRP
  C. BGP

• Question 279:

  How does a model-driven telemetry dial-out approach function?

  A. The device initiates a session to the collector based on the subscription.
  B. The collector initiates a session to the device and subscribes to data to be streamed.
  C. The collector Initiates a session to the device and gets the data of a previously defined subscription.
  D. The device initiates a session to the collector and negotiates a subscription.
  D. The device initiates a session to the collector and negotiates a subscription.

• Question 280:

  What is the role of a control-plane node in a Cisco SD-Access architecture?

  A. fabric device that connects wired endpoints to the SD-Access fabric
  B. map system that manages endpoint to device relationships
  C. fabric device that connects APs and wireless endpoints to the SD-Access fabric
  D. map system that manages External Layer 3 networks
  B. map system that manages endpoint to device relationships