Tuesday, October 18, 2016

CCNAv3 Chapter 5.1 Quiz Answers (100%)

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Below is the Chapter 5.1 Quiz for CCNA 3, hand-crafted by yours truly. 

We have included the tutorial/explanations from the quiz page to help describe each response. Most answer pages don't ever have a tutorial section-- this is the least we could do.



To view the answers to this quiz, click the following link if you have not done so already.

Chapter 5.1 Quiz: OSPF Election Test

Question 1
Refer to the exhibit. What are three resulting DR and BDR elections for the given topology? (Choose three.)
i214906v1n2_214906.png

  • R2 is BDR for segment A.***
  • R4 is BDR for segment B. ***
  • R5 is DR for segment B. ***
  • R1 is DR for segment A. 
  • R3 is DR for segment B. 
  • R3 is DBR for segment B.


Missed this question? See below for some assistance!
Refer to curriculum topic: 5.1.2
Because all the interface priorities are the default value, the election took place based on the router IDs.

Question 2
Refer to the exhibit. What are three results for the DR and BDR elections for the given topologies? (Choose three.)
i214907v1n2_214907.png
  • R4 is DR for segment B. 
  • R2 is BDR for segment A. 
  • R3 is DR for segment A. 
  • R1 is DR for segment A.*** 
  • R3 is BDR for segment A.***
  • R5 is BDR for segment B.***


Missed this question? See below for some assistance!
Refer to curriculum topic: 5.1.2
Without ties between them, the elections took place based only on interface priorities.


Question 3
Refer to the exhibit. For the given topology, what are three results of the OSPF DR and BDR elections ? (Choose three.)
i214908v1n2_214908.png
  • R1 is BDR for segment A. 
  • R2 is DR for segment A. 
  • R3 is DR for segment A. ***
  • R4 is DR for segment B. 
  • R5 is BDR for segment B. ***
  • R3 is DR for segment B. ***

Missed this question? See below for some assistance!
Refer to curriculum topic: 5.1.2

Question 4
Refer to the exhibit. What are three resulting DR and DBR elections for the given topology? (Choose three.)
i214904v1n2_214904.png
  • 4 is BDR for segment B. 
  • R4 is DR for segment B. 
  • R3 is DR for segment A. ***
  • R2 is DR for segment A. 
  • R3 is BDR for segment B. *** 
  • R5 is DR for segment B. ***


Missed this question? See below for some assistance!
Refer to curriculum topic: 5.1.2
For segment A, R3 becomes DR because of the priority of 255 of the FastEthernet 0/0 interface. R1 becomes BDR because of the FastEthernet 0/0 priority of 128. For segment B, R5 becomes DR because of the IPv4 address on the FastEthernet 0/0 interface. R3 becomes BDR because of the IPv4 address on the FastEthernet 0/0 interface.


Question 5
Refer to the exhibit. What are three resulting DR and BDR elections for the given topology? (Choose three.)
i214905v1n2_214905.png
  • R3 is BDR for segment A. 
  • R1 is DR for segment A. ***
  • R2 is BDR for segment A. ***
  • R3 is DR for segment A. 
  • R4 is BDR for segment B. 
  • R5 is BDR for segment B. ***


Missed this question? See below for some assistance!
Refer to curriculum topic: 5.1.2
For segment A, R1 becomes DR because of the priority of 128 of the FastEthernet 0/0 interface. R2 becomes BDR because of the Loopback 0 interface IPv4 address. For segment B, R3 becomes DR because of the FastEthernet 0/0 interface priority of 255. R5 becomes BDR because of the IPv4 address on the Loopback 0 interface.


END OF QUIZ! Answers should be correct (or at least a 90%). Make sure to comment specifically what is incorrect or what you may have missed if you did not score correctly.



























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