多项选择题
A. A new switch has no VLANs configured.
B. Connectivity between VLANs requires a Layer 3 device.
C. VLANs typically decrease the number of collision domains.
D. Each VLAN uses a separate address space.
E. A switch maintains a separate bridging table for each VLAN.
F. VLANs cannot span multiple switches.
多项选择题 A network administrator changes the configuration register to 0x2142 and reboots the router. What are two results of making this change?（）
多项选择题 Which two values are used by Spanning Tree Protocol to elect a root bridge?（）
多项选择题 What are two advantages of Layer 2 Ethernet switches over hubs?（）