Which VTP modes support the extended range of VLANs?

The correct answer is that the Transparent and Off modes support the extended range of VLANs. In a network using the VLAN Trunking Protocol (VTP), the different modes dictate how VLAN information is managed and propagated across switches.

In VTP Transparent mode, a switch does not participate in VLAN information sharing. It can create, modify, and delete VLANs within its own database but does not affect VTP advertisements to other switches. Importantly, switches in Transparent mode can support the extended VLAN range, which goes from VLAN 1006 to VLAN 4096, thus accommodating additional custom VLAN configuration.

Off mode indicates that VTP is entirely disabled on the switch. As a result, it does not share VLAN information with other switches, but it can still support and configure the extended range of VLANs because it operates independently of VTP. This means the switch can be used to configure VLANs manually, including those in the extended range.

The choice of Client and Server modes does not provide support for extended VLANs due to the limitations of VTP in these modes. While they can manage standard VLANs (1-1005) and participate in sharing VLAN information, neither Client nor Server modes allows the configuration of extended VLANs without specific configurations