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  3. 300-420

Cisco 300-420 Exam (page: 3)
Cisco Designing Enterprise Networks (ENSLD)
Updated on: 10-Mar-2026

Viewing Page 3 of 59
300-420 PDF 386 Questions

A company is using OSPF between its HQ location and a branch office. HQ is assigned area 0 and the branch office is assigned area 1. The company purchases a second branch office, but due to circuit delays to HQ, it decides to connect the new branch office to the existing branch office as a temporary measure. The new branch office is assigned to area 2. Which OSPF configuration enables all three locations to exchange routes?

  1. The existing branch office must be configured as a stub area
  2. A virtual link must be configured between the new branch office and HQ
  3. A sham link must be configured between the new branch office and HQ
  4. The new branch office must be configured as a stub area

Answer(s): B



Which method will filter routes between EIGRP neighbors within the same autonomous system?

  1. distribute-list
  2. policy-based routing
  3. leak-map
  4. route tagging

Answer(s): A



What are two valid scaling techniques when an EIGRP network is designed that consists of more than 1000 routers? (Choose two.)

  1. Use structured hierarchical topology with route summarization
  2. Used sub-second timers
  3. Use the distribute-list command to filter routes
  4. Modify delay parameters on the links
  5. Implement multiple EIGRP autonomous systems

Answer(s): A,E



Refer to the exhibit. Which solution decreases the EIGRP convergence time?

  1. Enable subsecond timers
  2. Increase the hold time value
  3. Increase the dead timer value
  4. Enable stub routing on the spokes

Answer(s): D



A router running ISIS is showing high CPU and bandwidth utilization. An engineer discovers that the router is configured as L1/L2 and has L1 and L2 neighbors. Which step optimizes the design to address the issue?

  1. Make this router a DIS for each of the interfaces
  2. Disable the default behavior of advertising the default route on the L1/L2 router
  3. Configure the router to be either L1 or L2
  4. Configure each interface as either L1 or L2 circuit type

Answer(s): D



Viewing Page 3 of 59



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