What should be configured for extended VLANs?

After implementing VTP, the extended VLANs are not being propagated to other VTP switches.

What should be configured for extended VLANs?
A . VTP does not support extended VLANs and should be manually added to all switches.
B . Enable VTP version 3, which supports extended VLAN propagation.
C . VTP authentication is required when using extended VLANs because of their ability to cause network instability.
D . Ensure that all switches run the same Cisco IOS version. Extended VLANs will not propagate to different IOS versions when extended VLANs are in use.

Answer: B

Explanation:

VTP version 1 and VTP version 2 do not propagate configuration information for extended- range VLANs (VLAN numbers 1006 to 4094). You must configure extended-range VLANs manually on each network device.

VTP version 3 supports extended-range VLANs (VLAN numbers 1006 to 4094). If you convert from VTP version 3 to VTP version 2, the VLANs in the range 1006 to 4094 are removed from VTP control. Reference: http://www.cisco.com/en/US/docs/switches/lan/ catalyst6500/ios/15.1SY/config_guide/sup2T/vtp .pdf