下面哪个命令将新的思科IOS版本复制到路由器？（)

A.清空RAM并重启路由器

B.清空闪存并重启路由器

C.清空NVRAM并重启路由器

D.直接输入新配置再保存

A.用于重启路由器

B.用于忽略NVRAM中的配置

C.用于进入ROM监视器模式

D.用户查看遗忘的密码

成本是多少?()

A.4

B.8

C.23

D.12

A.配置PortFast和BPDU防护，以提高会聚速度

B.给RSTP PVST+配置非等成本负载均衡

C.将全部4条链路捆绑为一条EtherChannel

D.配置PPP并使用多链路

A.所有交换机和网桥的端口都处于转发状态

B.所有交换机和网桥的端口要么是根端口要么是指定端口

C.所有交换机和网桥的端口要么处于转发状态要么处于阻断状态

D.所有交换机和网桥的端口要么处于阻断状态要么处于环回状态

A.disable spanning-tree

B.spanning-tree off

C.spanning-tree security

D.spanning-tree portfast

(Select all that apply.)

A. Blocking

B. Auto

C. Desirable

D. On

E. Transparent

F. Learning

How could the Ezonexam corporation benefit from using VLANs on their network?

(Select three answer choices.)

A. VLANs allow access to network services based on department, not physical location.

B. VLANs utilize packet filtering to enhance network security.

C. VLANs provide a low-latency, high bandwidth internetworking alternative.

D. VLANs provide a method of communication between IP addresses in large networks.

E. VLANs establish segmented broadcast domains in switched networks.

F. VLANs can greatly simplify adding, moving, or changing hosts on the network.

recently entered. Which IOS command opens the history buffer and displays the most recently entered commands?

A. Show history

B. Show buffers

C. Show typed commands

D. Show terminal buffer

E. Show command

F. None of the above