What is one benefit of PVST+?
A.
PVST+ reduces the CPU cycles for all the switches in the network.
B.
PVST+ automatically selects the root bridge location, to provide optimiziation.
C.
PVST+ allows the root switch location to be optimized per vlan.
D.
PVST+ supports Layer 3 load balancing without loops.
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Answer C –
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Per VLAN Spanning Tree (PVST) maintains a spanning tree instance for each VLAN configured in the network. It means a switch can be the root bridge of a VLAN while another switch can be the root bridge of other VLANs in a common topology. For example, Switch 1 can be the root bridge for Voice data while Switch 2 can be the root bridge for Video data. If designed correctly, it can optimize the network traffic.
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