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v参考下面图形，一个网络工程师助理（CCNA）需要配置交换机和路由器，使VLAN3和VLAN4的主机能够相互通信，同时也可以与VLAN2中的服务器通信。以下哪两个以太网段需要被配置为干道？（选择2项）()

A . A B . B C . C D . D E . E F . F 7

( 多选题 | 1 分 )

Which of the following are true regarding

bridges and switches? (Choose two.)(BC) A . Bridges are faster than switches because they have fewer ports.

B . A switch is a multiport bridge. C . Bridges and switches learn MAC addresses by examining the source MAC address of each frame received.

D . A bridge will forward a broadcast but a switch will not.

E . Bridges and switches increase the size of a collision domain. 8

( 多选题 | 1 分 )

与集线器相比较，二层以太网交换机的优势是什么？（选择2项）(BC) A . 降低冲突域的数量 B . 过滤基于MAC地址的帧 C . 允许同时传输数据帧

D . 增加广播域的大小

E . 增加两台设备间UTP电缆线的最大长度 9

( 单选题 | 1 分 )

二层交换机的每个端口都在独立的（B）中 A . Access B . 冲突域 C . Trunk D . 广播域 E . Hybrid F . VLAN 10

( 多选题 | 1 分 )

为实现属于同一VLAN的网络终端跨交换机通信，交换机之间的级联端口类型是（C ）或（ E）类型。 A . Access

B . 冲突域 C . Trunk D . 广播域 E . Hybrid F . VLAN 11

( 单选题 | 1 分 )

Refer to the exhibit. SW1 and SW2 have default configurations. What will happen if host 1 sends a broadcast?

A . Hosts 2, 3 and 4 will receive the broadcast.

B . Hosts 1, 2, 3 and 4 will receive the

broadcast.

C . Host 2 and the Fa0/0 interface of R1 will receive the broadcast.

D . Hosts 1, 2 and the Fa0/0 interface of R1 will receive the broadcast.

E . Hosts 1, 2, 3, 4 and interface Fa0/0 of R1 will receive the broadcast.

F . Hosts 2, 3, 4 and interfaces Fa0/0 and Fa0/1 of R1 will receive the broadcast. 12

( 多选题 | 1 分 )

What are two advantages of Layer 2 Ethernet switches over hubs? (Choose two.)(BE) A . decreasing the number of collision domains

B . filtering frames based on MAC addresses C

.

allowing

simultaneous

frame

transmissions