单项选择题 Study the Exhibit below carefully: London#show vtp VTP Version: 2 Configuration Revision: 0 Maximum VLANs supported locally: 64 Number of existing VLANs: 5 VTP Operating Mode: Client VTP Domain Name: London VTP Pruning Mode: Disabled VTP V2 Mode: Disabled VTP Traps Generation: Disabled Based on the information given above, what is the VTP function of this particular switch?（）

多项选择题 You are a senior network administrator at TestKing and your trusty junior administrator tells you that he failed his task of adding VLAN 50 to a Catalyst switch in the network. You enter in the show vtp status command and get this output: TK2# show vtp status VTP Version :2 Configuration Revision :7 Maximum VLANs supported local :68 Number of existing VLANs :8 VTP Operating Mode :Client VTP Domain Name :corp VTP Pruning Mode :Disabled VTP V2 Mode :Disabled VTP Traps Generation :Disabled MD5 digest :0x22 0xF3 0x1A Configuration last modified by 172.18.22.15 at 5-28-03 1t:53:20 What commands must be issued on this switch to add VLAN 50 to the database?（）

多项选择题 There are 2 switches in the Testking LAN, with no routers. Ports 1, 2 & 3 are assigned to VLAN 1 in switch 1 and 2 and ports 4, 5 & 6 are assigned to VLAN 2 in both switches. These two switches are connected together via a trunked link. Which of the conditions below would verify trunk and VLAN operation?（）