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Refer to the exhibit.

Which two commands ensure that DSW1 becomes root bridge for VLAN 10? (Choose two)

A.

DSW1(config)#spanning-tree vlan 10 priority 4096 Most Voted

Answers
A.

DSW1(config)#spanning-tree vlan 10 priority 4096 Most Voted

B.

DSW1(config)#spanning-tree vlan 10 priority root

Answers
B.

DSW1(config)#spanning-tree vlan 10 priority root

C.

DSW2(config)#spanning-tree vlan 10 priority 61440 Most Voted

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C.

DSW2(config)#spanning-tree vlan 10 priority 61440 Most Voted

D.

DSW1(config)#spanning-tree vlan 10 port-priority 0

Answers
D.

DSW1(config)#spanning-tree vlan 10 port-priority 0

E.

DSW2(config)#spanning-tree vlan 20 priority 0

Answers
E.

DSW2(config)#spanning-tree vlan 20 priority 0

Suggested answer: C, D

Explanation:

Ref: Scaling Networks v6 Companion Guide

“STP

Extended System ID

Bridge Priority

The bridge priority is a customizable value that can be used to influence which switch becomes the root bridge. The switch with the lowest priority, which implies the lowest BID, becomes the root bridge because a lower priority value takes precedence.

The default priority value for all Cisco switches is the decimal value 32768. The range is 0 to 61440, in increments of 4096. Therefore, valid priority values are 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864, 40960, 45056, 49152, 53248, 57344, and 61440. A bridge priority of 0 takes precedence over all other bridge priorities. All other values are rejected.

asked 10/10/2024
Husein M
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