Cisco CCNP Enterprise 300-420 Questions & Answers

• Question 171:

  Which two steps can be taken to improve convergence in an OSPF network? (Choose two.)

  A. Use Bidirectional Forwarding Detection

  B. Merge all the areas into one backbone area

  C. Tune OSPF parameters

  D. Make all non-backbone areas stub areas

  E. Span the same IP network across multiple areas.

  Correct Answer: AC

• Question 172:

  When a first hop redundancy solution is designed, which protocol ensures that load balancing occurs over multiple routers using a single virtual IP address and multiple virtual MAC addresses?

  A. GLBP

  B. IRDP

  C. VRRP

  D. HSRP

  Correct Answer: A

• Question 173:

  Which two best practices must be followed when designing an out-of-band management network? (Choose two.)

  A. Enforce access control

  B. Facilitate network integration

  C. Back up data using the management network

  D. Ensure that the management network is a backup to the data network

  E. Ensure network isolation

  Correct Answer: AE

  https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Security/SAFE_RG/SAFE_rg/c hap9.html

• Question 174:

  Which nonproprietary mechanism can be used to automate rendezvous point distribution in a large PIM domain?

  A. Embedded RP

  B. BSR

  C. Auto-RP

  D. Static RP

  Correct Answer: B

• Question 175:

  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

  Correct Answer: A

• Question 176:

  In an SD-WAN architecture, which methods are used to bootstrap a vEdge router?

  A. DHCP options or manual configuration

  B. vManage or DNS records

  C. ZTP or manual configuration

  D. DNS records or DHCP options

  Correct Answer: C

• Question 177:

  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

  Correct Answer: D

• Question 178:

  Which two statements about VRRP advertisements are true? (Choose two.)

  A. They are sent from the master router and standby routers.

  B. They include VRRP timer information.

  C. They are sent only from the master router.

  D. They include priority information.

  E. They are sent every three seconds by default.

  Correct Answer: CD

• Question 179:

  Which common issue causes intermittent DMVPN tunnel flaps?

  A. a routing neighbor reachability issue

  B. a suboptimal routing table

  C. interface bandwidth congestion

  D. that the GRE tunnel to hub router is not encrypted

  Correct Answer: A

• Question 180:

  Which two statements about VRRP object tracking are true? (Choose two)

  A. The priority of a VRRP device can change in accordance with the up or down status of a VRRP object

  B. The VRRP interface priority must be manually configured by the administrator

  C. A VRRP group can track only one object at a time

  D. VRRP can track the status of interfaces and routes

  E. VRRP supports only interce tracking

  Correct Answer: AD

  https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2019/pdf/BRKCRS-2821.pdf