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You are here: Home / SWITCH / Module 3 / Module 3 – Exam

Module 3 – Exam

1. What assumptions does STP make about the network?

 
 
 
 
 

Question 1 of 21

2. When the udld enable global configuration command is executed, for what type of ports is UDLD enabled?

 
 
 
 

Question 2 of 21

3. What standard introduced the extended system ID to conserve MAC addresses, while still allowing for a unique BID for each VLAN?

 
 
 
 

Question 3 of 21

4. Click on the Exhibit.

3-basedontheparameter

Based on the parameters illustrated in the Exhibit, which switch will be elected Root Bridge for VLAN 1?

 
 

Question 4 of 21

5. Which of the following statements is TRUE in regards to Configuration BPDUs?

 
 
 
 
 
 

Question 5 of 21

6. Under what two conditions is a TCN BPDU originated by a switch?

 
 
 
 

Question 6 of 21

7. Click on the Exhibit.

3-whatcommand

What command produced the output illustrated in the Exhibit?

 
 
 
 
 
 

Question 7 of 21

8. Which of the following statements about STP timers are TRUE?

 
 
 
 
 
 
 

Question 8 of 21

9. Which 802.1D timer is modified by every switch that receives and propagates a BPDU?

 
 
 
 

Question 9 of 21

10. The Flag field in the Configuration BPDU is used for the Topology Change (TC) and Topology Change Acknowledgement (ACK) flags.  What is FALSE in regards to the LSB and MSB?

 
 
 
 

Question 10 of 21

11. What are the two UDLD modes of operation?

 
 
 
 
 
 

Question 11 of 21

12. What is TRUE in regards to Configuration BPDUs with the TCN bit set?

 
 
 
 

Question 12 of 21

13. Which of the following statements are FALSE?

 
 
 
 

Question 13 of 21

14. What two types of Root Link Querys (RLQs) are used during Backbone Fast operation?

 
 
 
 
 
 

Question 14 of 21

15. Implementing Spanning Tree Protocol GUARANTEES that a loop-free network topology will be created.

 
 

Question 15 of 21

16. Which of the following statements are TRUE in regards to the BPDU Guard and BPDU Filter STP Enhancements?

 
 
 
 
 
 

Question 16 of 21

17. Which statements pertaining to Loop Guard are FALSE?

 
 
 
 

Question 17 of 21

18. A switch has just booted up. By default, the switch will send out BPDUs. To which adress will these BPDUs be sent?

 
 
 
 

Question 18 of 21

19. The TCN flag instructs all switches to shorten their MAC address table aging process from the default value of 500 seconds to the current Forward Delay value, which is 15 seconds

 
 

Question 19 of 21

20. What variables determine the topology of an active switched network?

 
 
 
 
 

Question 20 of 21

21. With Backbone Fast, when does failover occur?

 
 
 
 

Question 21 of 21

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