Which definition describes an active/passive network configuration?

An active/passive network configuration is typically characterized by having one interface that is actively handling traffic while another interface is configured as a standby or backup. In this setup, the passive interface does not actively participate in routing traffic under normal conditions; instead, it remains in a ready state to take over if the active interface fails. This design enhances network reliability and redundancy, as it ensures that there is a failover mechanism in place to maintain service availability.

The other options reflect different network designs. For example, sharing traffic across multiple interfaces suggests a load-balancing scenario which is not the same as an active/passive configuration. Active routing by all interfaces implies an active/active setup, where multiple interfaces are simultaneously handling traffic, which also diverges from the active/passive model. Multiple interfaces combined for load balancing reinforces the concept of distributing traffic evenly across active pathways, contrasting with the premise of having a passive backup ready to take over in failure scenarios.