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Cisco Certified Network Associate (CCNA) · Cisco
Select one answer.
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C is correct as SW2 is already primary, and when it fails, SW3 becomes root
Spanning-Tree Selection Order The spanning-tree algorithm uses the following criteria in order to determine the root bridge and port roles: 1 Bridge Priority (lowest) 2 Path Cost (which is based on link bandwidth) 3 Port Priority 4 Port ID (as a tiebreaker)
Switch 1 is already root bridge, if it fails switch 3 will be root bridge so correct answer is C