下列哪一条命令是用来保存交换机的配置信息（）。

A . show running-config B . show startup-config C . show backup-config D . show versio

A . copy startup to active B . copy tftp-server to startup C . copy tftp-server to active D . copy active to startu

A . show ip nat translations B . show ip nat statistics C . debug ip nat D . clear ip nat translation E . clear ip nat translation *

A . [Quidway]display ip igmp interface B . <Quidway>display ip igmp interface C . <Quidway>display ip igmp D . [Quidway]display igmp interface

A . A、show interface B . B、show isdn q921 C . C、show isdn q931 D . D、show isdn status E . E、show isdn active

A . aaa accounting network start-stop tacacs+ B . aaa accounting system start-stop tacacs+ C . aaa accounting exec start-stop tacacs+ D . aaa accounting connection start-stop tacacs+

A . [Quidway]save B .

A . B B . W C . C D . V

A . 正确 B . 错误

A . show vtp B . show vtp status C . show vtp server D . show trunk

A . A、RAM B . B、注册表 C . C、CMOS D . D、硬盘

A . DISPLAY interface B . DISPLAY running-config C . DISPLAY ipx interface D . debug ipx interface

A . A、show bufferpool B . B、show running－config C . C、show interface

A . dialer time ridle B . dialer time rcompete C . dialer time renable D . dialer time rwait-carrier

A . LIST B . DISPLAY C . SHOW D . 都可以

A . 正确 B . 错误

A . upper B . translate C . tr D . lower

A . display acl config all B . display access-list all C . display ip access-list all D . display access-list link

A . copy run start B . copy start run C . copy run tftp D . copy tftp ru

A．Routershow running—config B．Routershow startup—config C．Router‘show configuration D．Router＞show running—config

A．write flash B．copy running-config startup-config C．write NVRAM D．copy startup-config running-config

A．isplay buffer pool B．isplay current-config C．isplay interface D．isplay vlan