The acronym STP stands for which protocol?

• A. Spanning Tree Protocol
• B. Security Transport Protocol
• C. Simple Transfer Protocol
• D. Stream Transport Protocol

Answer: (A)

Preventing loops in Layer 2 Ethernet networks is what this tests. Spanning Tree Protocol creates a loop-free topology by using the Spanning Tree Algorithm to elect a root bridge and then determine the shortest path to that root for every switch. Redundant inter-switch links are put into a blocking state so no cycles form, and if an active path fails, a blocked link can transition to forwarding to restore connectivity. This mechanism is exactly what STP is designed to do, which is why the acronym stands for Spanning Tree Protocol. The other terms don’t refer to the standard protocol used to stop switching loops, so they aren’t correct. You may encounter rapid or multiple spanning tree variants, but the core idea remains: build a tree and eliminate cycles.