In a small company's local network, an IT technician suspects that there might be a Layer 2 loop occurring because of improper switch configuration. Which feature should be enabled on the company's network switches to prevent broadcast storms and ensure efficient handling of network frames?
The correct answer is Spanning Tree Protocol (STP). STP is a Layer 2 loop-prevention mechanism that creates a loop-free logical topology by exchanging Bridge Protocol Data Units (BPDUs), electing a root bridge, and blocking redundant paths. This stops broadcast storms while keeping backup links available if the primary path fails. Port Mirroring simply copies traffic to another port for monitoring and has no role in topology control. Quality of Service (QoS) classifies and prioritizes traffic but does not detect or block loops. "Loop Detection and Prevention Protocol (LDPD)" is not an industry-standard feature.
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What is Spanning Tree Protocol (STP)?
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What is the difference between STP and Rapid Spanning Tree Protocol (RSTP)?
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How does a Layer 2 loop affect network performance?