Cisco 300-420 Online Practice Questions and Exam Preparation

Cisco 300-420 Online Questions & Answers

• Question 151:

  An engineer must design a QoS solution for a customer. The network currently supports data only, but the customer will roll out VoIP and IP video in conjunction with the new QoS solution. The engineer plans to use DiffServ. To ensure priority for voice services, which model must the design include?

  A. 8-class model
  B. 4-class model
  C. 6-class model
  D. 12-class model
  A. 8-class model

• Question 152:

  A customer requested that a guaranteed service line be enabled for a manufacturing business in different countries. On the customer side, the QoS-aware application is used to process large data chunks. The application cannot tolerate drops and latency should be as low as possible.

  Which QoS model must an engineer employ to use the minimum required resources on the ISP network nodes?

  A. Enable a flow-based QoS strategy with queuing elements.
  B. Implement an end-to-end QoS strategy with SLA.
  C. Implement a group-based QoS strategy with FECs enabled.
  D. Configure a domain-based QoS strategy with PHB behavior.
  D. Configure a domain-based QoS strategy with PHB behavior.

• Question 153:

  Company A recently acquired another company. Users of the newly acquired company must be able to access a server that exists on Company A's network, both companies use overlapping IP address ranges. Which action conserves IP address space and provides access to the server?

  A. Use a single IP address to create overload NAT
  B. Use a single IP address to create a static NAT entry
  C. Build one-to-one NAT translation for every user that needs access
  D. Re-IP overlapping address space in the acquired company
  A. Use a single IP address to create overload NAT

• Question 154:

  How are wireless endpoints registered in the HTDB in a Cisco SD-Access architecture?

  A. Fabric edge nodes update the HTDB based on CAPPWAP messaging from the AP
  B. Fabric WLCs update the HTDB as new clients connect to the wireless network
  C. Border nodes first register endpoints and then update the HTDB
  D. Fabric APs update the HTDB with the clients' ElD and RLOC
  B. Fabric WLCs update the HTDB as new clients connect to the wireless network

• Question 155:

  A customer is discussing QoS requirements with a network consultant. The customer has specified that endto-end path verification is a requirement. Which QoS solution meets this requirement?

  A. IntServ model with RSVP to support the traffic flows
  B. DiffServ model with PHB to support the traffic flows
  C. marking traffic at the access layer with DSCP to support the traffic flows
  D. marking traffic at the access layer with CoS to support the traffic flows
  A. IntServ model with RSVP to support the traffic flows

• Question 156:

  An engineer must design a VPN solution for a company that has multiple branches connecting to a main office. What are two advantages of using DMVPN instead of IPsec tunnels to accomplish this task? (Choose two.)

  A. support for AES 256-bit encryption
  B. greater scalability
  C. support for anycast gateway
  D. lower traffic overhead
  E. dynamic spoke-to-spoke tunnels
  B. greater scalability
  E. dynamic spoke-to-spoke tunnels

• Question 157:

  Which feature is supported on the Cisco vEdge platform?

  A. single sign-on
  B. IPv6 transport (WAN)
  C. license enforcement
  D. 2-factor authentication
  E. reporting
  F. non-Ethernet interfaces
  B. IPv6 transport (WAN)

• Question 158:

  An engineer working for a service provider with an employee ID: 4859:86:437 must design a solution to provide remote connectivity over the public internet. The design must:

  1.securely connect multiple remote sites to the central site

  2.provide redundant paths to the central site

  3.allow auto path selection based on failure and connection quality

  4.support IP multicast

  5.minimal configuration at remote sites Which solution must the engineer choose?

  A. MPLS provided service with BGP
  B. full mesh ISIS with GRE tunnels and IPsec
  C. dual DMVPN with EIGRP routing
  D. full mesh OSPF with IPsec tunnels
  C. dual DMVPN with EIGRP routing

• Question 159:

  Refer to the exhibit.

  

  Which two points in the network must an engineer configure the ports for explicit trust when using a DiffServ model?

  A. B and E
  B. F and G
  C. A and D
  D. C and D
  B. F and G

• Question 160:

  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.)

  A. PIM-SSM
  B. IGMPv3
  C. IGMPv2
  D. PIM-SM
  E. MSDP
  D. PIM-SM
  E. MSDP