Cisco Certified Network Associate (CCNA) 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 1055

Which of the following best describes the function of the Spanning Tree Protocol?

To ensure fast data transmission in a network.

To prevent loops in network topology.

The function of the Spanning Tree Protocol (STP) is primarily to prevent loops in network topology. In a network with switches, loops can form when there are multiple pathways between devices, potentially causing broadcast storms and overwhelming the network. STP helps by identifying and disabling redundant links, thus preventing these loops while still allowing for redundancy where necessary. This ensures a stable and efficient network topology.

While ensuring fast data transmission, managing VLAN configurations, and enhancing security are important aspects of network management, they are not the primary functions of STP. Instead, STP specifically addresses the problem of network loops, which is crucial for maintaining network stability and performance.

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To manage VLAN configurations.

To enhance security of a network.

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