How does STP provide a loop-free network? By placing all ports in the blocking state

1. How does STP provide a loop-free network? • By placing all ports in the blocking state • By placing all bridges in the blocking state • By placing some ports in the blocking state • By placing some bridges in the blocking state

2. How does STP provide a loop-free network? • By placing all ports in the blocking state • By placing all bridges in the blocking state • By placing some ports in the blocking state • By placing some bridges in the blocking state

3. What elements will exist in a converged network with one spanning tree? (Choose two.) • one root bridge per network • all non-designated ports forwarding • one root port per non-root bridge • multiple designated ports per segment • one designated port per network

4. What elements will exist in a converged network with one spanning tree? (Choose two.) • one root bridge per network • all non-designated ports forwarding • one root port per non-root bridge • multiple designated ports per segment • one designated port per network

5. Which port role specifies a forwarding port that is elected for every switched LAN segment when using Rapid Spanning Tree Protocol? • Root • Backup • Alternate • Designated

6. Which port role specifies a forwarding port that is elected for every switched LAN segment when using Rapid Spanning Tree Protocol? • Root • Backup • Alternate • Designated

7. In which STP state does a port record MAC addresses but not forward user data? • blocking • learning • disabling • listening • forwarding

8. In which STP state does a port record MAC addresses but not forward user data? • blocking • learning • disabling • listening • forwarding

9. How is the information contained in BPDUs used by switches? (Choose two.) • to prevent loops by sharing bridging tables between connected switches • to set the duplex mode of a redundant link • to determine the shortest path to the root bridge • to determine which ports will forward frames as part of the spanning tree • to activate looped paths throughout the network

10. How is the information contained in BPDUs used by switches? (Choose two.) • to prevent loops by sharing bridging tables between connected switches • to set the duplex mode of a redundant link • to determine the shortest path to the root bridge • to determine which ports will forward frames as part of the spanning tree • to activate looped paths throughout the network

11. In what state can a port populate its MAC address table but not forward user frames? • Learning state • Blocking state • Listening state • Forwarding state

12. In what state can a port populate its MAC address table but not forward user frames? • Learning state • Blocking state • Listening state • Forwarding state

13. What is Rapid Spanning Tree Protocol equivalent state to the Spanning Tree Protocol blocking state? • Blocking • Dropping • Discarding • Forwarding

14. What is Rapid Spanning Tree Protocol equivalent state to the Spanning Tree Protocol blocking state? • Blocking • Dropping • Discarding • Forwarding

15. What happens when there is a topology change on a network that utilizes STP ? (Choose two.) • User traffic is disrupted until recalculation is complete. • The switch recomputes the Spanning Tree topology after the network converges. • All ports are placed in learning state until convergence has occurred. • A delay of up to 50 seconds is incurred for convergence of the new Spanning Tree topology. • User data is forwarded while BPDUs are exchanged to recompute the topology

16. What happens when there is a topology change on a network that utilizes STP ? (Choose two.) • User traffic is disrupted until recalculation is complete. • The switch recomputes the Spanning Tree topology after the network converges. • All ports are placed in learning state until convergence has occurred. • A delay of up to 50 seconds is incurred for convergence of the new Spanning Tree topology. • User data is forwarded while BPDUs are exchanged to recompute the topology

17. Which of the following describe the BIDs used in a spanning tree topology? (Choose two.) • They are sent out by the root bridge only after the inferior BPDUs are sent. • They consist of a bridge priority and MAC address. • Only the root bridge will send out a BID. • They are used by the switches in a spanning tree topology to elect the root bridge. • The switch with the fastest processor will have the lowest BID.

18. Which of the following describe the BIDs used in a spanning tree topology? (Choose two.) • They are sent out by the root bridge only after the inferior BPDUs are sent. • They consist of a bridge priority and MAC address. • Only the root bridge will send out a BID. • They are used by the switches in a spanning tree topology to elect the root bridge. • The switch with the fastest processor will have the lowest BID.

19. On the root bridge, all ports are _______? • Root ports • Blocked ports • Designated ports • Non-designated ports

20. On the root bridge, all ports are _______? • Root ports • Blocked ports • Designated ports • Non-designated ports

21. What link types have been defined for Rapid Spanning-Tree Protocol? (Choose three.) • shared • end-to-end • edge-type • boundary-type • point-to-many • point-to-point

22. What link types have been defined for Rapid Spanning-Tree Protocol? (Choose three.) • shared • end-to-end • edge-type • boundary-type • point-to-many • point-to-point

23. How much time does it take for a switch port to go from the blocking state to the forwarding state? • 2 seconds • 15 seconds • 20 seconds • 50 seconds

24. How much time does it take for a switch port to go from the blocking state to the forwarding state? • 2 seconds • 15 seconds • 20 seconds • 50 seconds

25. What features of the Spanning-Tree Protocol contribute to the time it takes for a switched network to converge after a topology change occurs? (Choose three.) • the max-age timer • the listening forward delay • the spanning-tree hold down timer • the learning forward delay • the spanning-tree path cost • the blocking delay

26. What features of the Spanning-Tree Protocol contribute to the time it takes for a switched network to converge after a topology change occurs? (Choose three.) • the max-age timer • the listening forward delay • the spanning-tree hold down timer • the learning forward delay • the spanning-tree path cost • the blocking delay