Cisco Certified Network Professional 2026 – 400 Free Practice Questions to Pass the Exam

VTP (VLAN Trunking Protocol) Version 2 introduces support for MD5 hashing, which enhances the security of VTP advertisements. This hashing mechanism ensures that VTP messages are authenticated and verifies the integrity of the data being transmitted between switches in the network. With the addition of MD5 hashing, network administrators can better protect their VLAN configuration updates from unauthorized modifications or tampering, making VTP communications more secure compared to its earlier version.

In contrast, extended VLAN support, multi-domain support, and improved VLAN management are features associated with later versions of VTP or other networking improvements rather than specific enhancements introduced in Version 2. Therefore, while VTP Version 1 lacks these advanced features, the introduction of MD5 hashing is a notable security upgrade that distinguishes Version 2.