PVST+ CCNA Questions
1.What is one benefit of PVST+? A. PVST+ supports Layer 3 load balancing without loops. B. PVST+ reduces the CPU cycles for all the switches in the network. C. PVST+ allows the root switch location to be optimized per VLAN. D. PVST+ automatically selects the root bridge location, to provide optimized bandwidth usage. Answer: C Explanation: 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. 2. When PVST+ in work on VLAN1 of the switch, what will affect on selection of one of switches in the VLAN as root-bridge? A. Lowest IP address B. Highest MAC address C. Lowest MAC address D. Highest IP address Answer: C Explan...