Cisco Certified Network Professional Practice Test 2025 - Free CCNP Exam Practice Questions and Study Guide.

The purpose of a Multiple Spanning Tree (MST) Instance is to allow multiple spanning tree instances to share the same VLANs. MST is designed to increase the efficiency of network operations by allowing a single spanning tree instance to manage multiple VLANs, reducing the overall control traffic and administrative overhead.

In a traditional Spanning Tree Protocol (STP) configuration, each VLAN would have its own separate spanning tree instance, which can lead to inefficiencies, especially in large networks with many VLANs. MST improves this situation by mapping multiple VLANs to a smaller number of MST instances. This means that administrators can create logical groupings of VLANs that can share the same spanning tree, which optimizes network performance and enhances stability by reducing the number of spanning tree calculations that need to be processed.

The other options do not accurately reflect the role of MST. Bundling multiple links into a single logical link pertains to Link Aggregation Control Protocol (LACP) rather than MST. Enhancing communication across devices in a single instance lacks specificity; while MST does help with communication efficiency, its primary purpose is the management of VLANs across instances. Configuring routing protocols for each VLAN relates to Layer 3 routing functions, which are separate from the spanning tree processes