Cisco Certified Network Professional 2025 – 400 Free Practice Questions to Pass the Exam

The pruning command in a VLAN Trunking Protocol (VTP) domain is propagated from the VTP server. In a VTP environment, the server is responsible for managing VLAN information and controls the configuration parameters that are distributed to all switches within the domain, including commands related to VLAN pruning.

When a VTP server sends a pruning command, it updates all VTP client switches and other servers in the domain. This is an essential aspect of VTP, as it facilitates the efficient management of VLAN traffic across the network by allowing unnecessary broadcast traffic to be trimmed, which optimizes bandwidth and reduces unnecessary load on network devices.

The other choices do not have the capability to effectively propagate pruning commands in a VTP domain, as they lack the administrative authority or functional role associated with VTP servers. This highlights the unique and critical role of the VTP server in managing VLANs and their associated configurations.