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  1. Home
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  3. 300-420

Cisco 300-420 Exam (page: 4)
Cisco Designing Enterprise Networks (ENSLD)
Updated on: 10-Mar-2026

Viewing Page 4 of 59
300-420 PDF 386 Questions

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

  1. EIGRP
  2. IS-IS
  3. BGP
  4. OSPF
  5. RIPng

Answer(s): A,C



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

  1. Use Bidirectional Forwarding Detection
  2. Merge all the areas into one backbone area
  3. Tune OSPF parameters
  4. Make all non-backbone areas stub areas
  5. Span the same IP network across multiple areas.

Answer(s): A,C



Which OSPF area blocks LSA Type 3, 4 and 5, but allows a default summary route?

  1. normal
  2. stub
  3. NSSA
  4. totally stubby

Answer(s): D



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.)

  1. a new OSPF area for R1 and R2 connections, with R1 and R2 as ABRs
  2. a new OSPF area for R3 and R4 connections, with R5 and R6 as ABRs
  3. a new OSPF area for R3 and R4 connections, with R3 and R4 as ABRs
  4. a new OSPF area for R1, R2, R3, and R4 connections, with R1, R2, R3, and R4 as ABRs
  5. a new OSPF area for R1 and R2 connections, with R5 and R6 as ABRs

Answer(s): B,E



An engineer must design a solution to provide backup connectivity between two sites. The engineer plans to use an Internet connection but company policy requires the connection to be encrypted. Additionally, there are several applications that utilize multicast to deliver video streams between the sites. Which technology should the design include?

  1. GRE over IPsec
  2. IPsec direct encapsulation
  3. GETVPN
  4. DMVPN

Answer(s): A



Viewing Page 4 of 59



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