UC知道帮忙看个CCNA的题
来源：百度知道 编辑：UC知道 时间：2024/05/28 18:20:30
A. Switches are capable of VLAN configurations, but hubs are not.
B. Hubs are generally the least costly method possible to connect multiple devices
together in a network.
C. Switches forward broadcasts and multicasts, by default, to all ports within the same
VLAN. Only routers block all broadcast traffic by default.
D. Switches and hubs can be equally efficient in processing frames, in theory. In practice,
switches are generally more efficient as they usually have more CPU and memory
allocated to them, and are generally much more expensive than a simple hub.
这四个选项哪个正确，哪个错误？最好翻译下，谢谢了。
B. Hubs are generally the least costly method possible to connect multiple devices
together in a network.
C. Switches forward broadcasts and multicasts, by default, to all ports within the same
VLAN. Only routers block all broadcast traffic by default.
D. Switches and hubs can be equally efficient in processing frames, in theory. In practice,
switches are generally more efficient as they usually have more CPU and memory
allocated to them, and are generally much more expensive than a simple hub.
这四个选项哪个正确，哪个错误？最好翻译下，谢谢了。
A.交换机可以划分VLAN，但是hubs不可以。
B.Hubs通常花最少的钱把复杂的设备连接到同一个网络中。
C.交换机默认转发广播和组播，默认所以端口都在同一个VLAN里边，只有路由器默认隔断广播。
D.交换机和Hubs处理数据帧的能力相同，在理论和实际上来说是因为交换机有更高的cpu和内存的所以才比Hubs处理数据帧的能力强，所以他要比Hubs贵。
正确的应该是：ABC
D错误，交换机是基于硬件转发的，ASIC