[单选题]阅读以下的配置信息，将(1)～(4)处空缺的内容填写相应的位置。

SW1＞enable //进入特权模式

SW1vlan database //进入vlan配置子模式

SW1(lan)vtp server //设置本交换机为Server模式

SW1(lan)vtp domain(1) //设置域名

SW1(lan)(2) //启动修剪功能

SW1(lan)exit //退出vlan配置模式

SW1(lan)(3) //查看vtp设置信息

VTP version:2

Configuration Revision:0

Maximum VLANs supported locally:64

Number of existing VLANs:1

VTP Operating Mode:Serverl

VTP domain Name:Serverl

VTP pruning Mode:Enable

VTP V2 Mode:Disabled

VTP Traps Generation:Disabled

MD5 digest:0x82 0x6B 0xFB 0x94 0xEF 0x92 0x30

Configuartion last modified by 0.0.0.0 at 7-1-05 00:07:51

SW2vlan database

SW2(vlan)vtp domain NULL

SW2(vlan)(4)

Swtting device to VTP CLIENT mode

SW2(vlan)exit