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Cisco 3 - Switch Perrine. J Page 110/3/2015 Chapter 7 How does STP provide a loop-free network? 1.By placing all ports in the blocking state 2.By placing.

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Presentation on theme: "Cisco 3 - Switch Perrine. J Page 110/3/2015 Chapter 7 How does STP provide a loop-free network? 1.By placing all ports in the blocking state 2.By placing."— Presentation transcript:

1 Cisco 3 - Switch Perrine. J Page 110/3/2015 Chapter 7 How does STP provide a loop-free network? 1.By placing all ports in the blocking state 2.By placing all bridges in the blocking state 3.By placing some ports in the blocking state 4.By placing some bridges in the blocking state

2 Cisco 3 - Switch Perrine. J Page 210/3/2015 Chapter 7 How does STP provide a loop-free network? 1.By placing all ports in the blocking state 2.By placing all bridges in the blocking state 3.By placing some ports in the blocking state 4.By placing some bridges in the blocking state

3 Cisco 3 - Switch Perrine. J Page 310/3/2015 Chapter 7 What elements will exist in a converged network with one spanning tree? (Choose two.) 1.one root bridge per network 2.all non-designated ports forwarding 3.one root port per non-root bridge 4.multiple designated ports per segment 5.one designated port per network

4 Cisco 3 - Switch Perrine. J Page 410/3/2015 Chapter 7 What elements will exist in a converged network with one spanning tree? (Choose two.) 1.one root bridge per network 2.all non-designated ports forwarding 3.one root port per non-root bridge 4.multiple designated ports per segment 5.one designated port per network

5 Cisco 3 - Switch Perrine. J Page 510/3/2015 Chapter 7 Which port role specifies a forwarding port that is elected for every switched LAN segment when using Rapid Spanning Tree Protocol? 1.Root 2.Backup 3.Alternate 4.Designated

6 Cisco 3 - Switch Perrine. J Page 610/3/2015 Chapter 7 Which port role specifies a forwarding port that is elected for every switched LAN segment when using Rapid Spanning Tree Protocol? 1.Root 2.Backup 3.Alternate 4.Designated

7 Cisco 3 - Switch Perrine. J Page 710/3/2015 Chapter 7 In which STP state does a port record MAC addresses but not forward user data? 1.blocking 2.learning 3.disabling 4.listening 5.forwarding

8 Cisco 3 - Switch Perrine. J Page 810/3/2015 Chapter 7 In which STP state does a port record MAC addresses but not forward user data? 1.blocking 2.learning 3.disabling 4.listening 5.forwarding

9 Cisco 3 - Switch Perrine. J Page 910/3/2015 Chapter 7 How is the information contained in BPDUs used by switches? (Choose two.) 1.to prevent loops by sharing bridging tables between connected switches 2.to set the duplex mode of a redundant link 3.to determine the shortest path to the root bridge 4.to determine which ports will forward frames as part of the spanning tree 5.to activate looped paths throughout the network

10 Cisco 3 - Switch Perrine. J Page 1010/3/2015 Chapter 7 How is the information contained in BPDUs used by switches? (Choose two.) 1.to prevent loops by sharing bridging tables between connected switches 2.to set the duplex mode of a redundant link 3.to determine the shortest path to the root bridge 4.to determine which ports will forward frames as part of the spanning tree 5.to activate looped paths throughout the network

11 Cisco 3 - Switch Perrine. J Page 1110/3/2015 Chapter 7 In what state can a port populate its MAC address table but not forward user frames? 1.Learning state 2.Blocking state 3.Listening state 4.Forwarding state

12 Cisco 3 - Switch Perrine. J Page 1210/3/2015 Chapter 7 In what state can a port populate its MAC address table but not forward user frames? 1.Learning state 2.Blocking state 3.Listening state 4.Forwarding state

13 Cisco 3 - Switch Perrine. J Page 1310/3/2015 Chapter 7 What is Rapid Spanning Tree Protocol equivalent state to the Spanning Tree Protocol blocking state? 1.Blocking 2.Dropping 3.Discarding 4.Forwarding

14 Cisco 3 - Switch Perrine. J Page 1410/3/2015 Chapter 7 What is Rapid Spanning Tree Protocol equivalent state to the Spanning Tree Protocol blocking state? 1.Blocking 2.Dropping 3.Discarding 4.Forwarding

15 Cisco 3 - Switch Perrine. J Page 1510/3/2015 Chapter 7 What happens when there is a topology change on a network that utilizes STP ? (Choose two.) 1.User traffic is disrupted until recalculation is complete. 2.The switch recomputes the Spanning Tree topology after the network converges. 3.All ports are placed in learning state until convergence has occurred. 4.A delay of up to 50 seconds is incurred for convergence of the new Spanning Tree topology. 5.User data is forwarded while BPDUs are exchanged to recompute the topology

16 Cisco 3 - Switch Perrine. J Page 1610/3/2015 Chapter 7 What happens when there is a topology change on a network that utilizes STP ? (Choose two.) 1.User traffic is disrupted until recalculation is complete. 2.The switch recomputes the Spanning Tree topology after the network converges. 3.All ports are placed in learning state until convergence has occurred. 4.A delay of up to 50 seconds is incurred for convergence of the new Spanning Tree topology. 5.User data is forwarded while BPDUs are exchanged to recompute the topology

17 Cisco 3 - Switch Perrine. J Page 1710/3/2015 Chapter 7 Which of the following describe the BIDs used in a spanning tree topology? (Choose two.) 1.They are sent out by the root bridge only after the inferior BPDUs are sent. 2.They consist of a bridge priority and MAC address. 3.Only the root bridge will send out a BID. 4.They are used by the switches in a spanning tree topology to elect the root bridge. 5.The switch with the fastest processor will have the lowest BID.

18 Cisco 3 - Switch Perrine. J Page 1810/3/2015 Chapter 7 Which of the following describe the BIDs used in a spanning tree topology? (Choose two.) 1.They are sent out by the root bridge only after the inferior BPDUs are sent. 2.They consist of a bridge priority and MAC address. 3.Only the root bridge will send out a BID. 4.They are used by the switches in a spanning tree topology to elect the root bridge. 5.The switch with the fastest processor will have the lowest BID.

19 Cisco 3 - Switch Perrine. J Page 1910/3/2015 Chapter 7 On the root bridge, all ports are _______? 1.Root ports 2.Blocked ports 3.Designated ports 4.Non-designated ports

20 Cisco 3 - Switch Perrine. J Page 2010/3/2015 Chapter 7 On the root bridge, all ports are _______? 1.Root ports 2.Blocked ports 3.Designated ports 4.Non-designated ports

21 Cisco 3 - Switch Perrine. J Page 2110/3/2015 Chapter 7 What link types have been defined for Rapid Spanning-Tree Protocol? (Choose three.) 1.shared 2.end-to-end 3.edge-type 4.boundary-type 5.point-to-many 6.point-to-point

22 Cisco 3 - Switch Perrine. J Page 2210/3/2015 Chapter 7 What link types have been defined for Rapid Spanning-Tree Protocol? (Choose three.) 1.shared 2.end-to-end 3.edge-type 4.boundary-type 5.point-to-many 6.point-to-point

23 Cisco 3 - Switch Perrine. J Page 2310/3/2015 Chapter 7 How much time does it take for a switch port to go from the blocking state to the forwarding state? 1.2 seconds 2.15 seconds 3.20 seconds 4.50 seconds

24 Cisco 3 - Switch Perrine. J Page 2410/3/2015 Chapter 7 How much time does it take for a switch port to go from the blocking state to the forwarding state? 1.2 seconds 2.15 seconds 3.20 seconds 4.50 seconds

25 Cisco 3 - Switch Perrine. J Page 2510/3/2015 Chapter 7 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.) 1.the max-age timer 2.the listening forward delay 3.the spanning-tree hold down timer 4.the learning forward delay 5.the spanning-tree path cost 6.the blocking delay

26 Cisco 3 - Switch Perrine. J Page 2610/3/2015 Chapter 7 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.) 1.the max-age timer 2.the listening forward delay 3.the spanning-tree hold down timer 4.the learning forward delay 5.the spanning-tree path cost 6.the blocking delay


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