What is a primary benefit of using fault tolerance in EtherChannel?

Using fault tolerance in EtherChannel primarily provides redundancy in case of link failure. EtherChannel allows the aggregation of multiple physical links between switches into a single logical link, effectively enhancing reliability and ensuring that the failure of one or more links does not disrupt network connectivity. If one link in the EtherChannel goes down, traffic will continue to flow over the remaining active links, maintaining uninterrupted service. This capability is essential for critical network environments where uptime is crucial, as it helps ensure that the loss of a single link does not lead to a complete network failure.

In contrast, options such as reduced bandwidth, prioritized traffic management, and extended coverage of wireless signals do not align with the primary purposes of EtherChannel. Fault tolerance focuses specifically on maintaining connectivity and service availability, making redundancy the key benefit of implementing this technology.