Cisco 300-420 Online Practice Questions and Exam Preparation

Cisco 300-420 Online Questions & Answers

• Question 71:

  Refer to the exhibit.

  

  A Cisco Catalyst switch is configured to allow only one MAC address to be learned manually on interface gig0/2. Which command must be run to dynamically learn the devices that are connected to the switch port?

  A. switchport port-security mac-address sticky
  B. switchport port-security mac-address auto
  C. switchport port-security aging
  D. switchport port-security maximum 1 auto
  A. switchport port-security mac-address sticky

• Question 72:

  A large chain of stores currently uses MPLS-based T1 lines to connect their stores to their data center. An architect must design a new solution to improve availability and reduce costs while keeping these considerations in mind:

  1.The company uses multicast to deliver training to the stores.

  2.The company uses dynamic routing protocols and has implemented QoS.

  3.To simplify deployments, tunnels should be created dynamically on the hub when additional stores open.

  Which solution should be included in this design?

  A. VPLS
  B. GET VPN
  C. DMVPN
  D. IPsec
  C. DMVPN

• Question 73:

  Refer to the exhibit. All routers currently reside in OSPF area 0. The network manager recently used R1 and R2 as aggregation routers for remote branch locations and R3 and R4 for aggregation routers for remote office locations. The network has since been suffering from outages, which are causing frequent SPF runs. To enhance stability and introduce areas to the OSPF network with the minimal number of ABRs possible, which two solutions should the network manager recommend? (Choose two.)

  

  \

  A. a new OSPF area for R1 and R2 connections, with R1 and R2 as ABRs
  B. a new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs
  C. a new OSPF area for R3 and R4 connections, with R3 and R4 as ABRs
  D. a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as ABRs
  E. a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs
  B. a new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs
  E. a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs

• Question 74:

  An engineer must propose a QoS architecture model that allows an application to inform the network of its traffic profile and to request a particular type of service to support its bandwidth and delay requirements. The application requires consistent and dedicated bandwidth end to end. Which QoS architecture model meets these requirements?

  A. DiffServ
  B. LLQ
  C. WRED
  D. IntServ
  D. IntServ

• Question 75:

  An engineer is looking for a standards-driven YANG model to manage a multivendor network environment. Which model must the engineer choose?

  A. Native
  B. OpenConfig
  C. IETF
  D. IEEE NETCONF
  C. IETF

• Question 76:

  Refer to the exhibit.

  

  Which method must an architect use to provide connectivity between the mail servers?

  A. ISATAP
  B. 6to4
  C. IPv4 compaliDie
  D. 6rd
  B. 6to4

• Question 77:

  When differentiating between IETF, OpenConfig, and Cisco native YANG models, how does the use of containers differ?

  A. IETF and Cisco native models use one container for operational data and another container for configuration data, and OpenConfig uses a single container for operational data and configuration data.
  B. OpenConfig uses one container for operational data and another container for configuration data, and IETF and Cisco native models use a single container for operational data and configuration data.
  C. Cisco native models use one container for operational data and another container for configuration data, and OpenConfig and IETF use a single container for operational data and configuration data.
  D. IETF and Cisco native models use a single container for operational data and configuration data, and OpenConfig uses one container for operational data and another container for configuration data.
  A. IETF and Cisco native models use one container for operational data and another container for configuration data, and OpenConfig uses a single container for operational data and configuration data.

• Question 78:

  DRAG DROP

  Drag and drop the Cisco SD-WAN components from the left onto their definitions on the right.

  Select and Place:

  

  

• Question 79:

  An architect is designing a connectivity solution for a customer's two small branch offices. The customer wants a cost-effective design, no routing overhead, and some down time during the year is acceptable. Which connectivity solution must the architect choose?

  A. single-homed
  B. dual multihomed
  C. single multihomed
  D. dual-homed
  A. single-homed

• Question 80:

  DRAG DROP

  Drag and drop the steps WAN Edge performs when on-boarded into the Cisco SD-WAN overlay from the left into the order they are completed on the right.

  Select and Place: