What problems are caused by egress from a hybrid fiber/coax (HFC) network?

Egress from a hybrid fiber/coax (HFC) network primarily refers to the unintentional leakage of signals outside the network. This can lead to interference with communication systems, particularly in adjacent frequency bands. When signals escape the intended path, they can cause various forms of disruption, including degradation of service, performance issues, or interference with other users or services.

This scenario highlights the importance of network management, as proper shielding and system design are essential to mitigate egress and ensure optimal performance. In this context, the other options do not align with the consequences of egress. Increased service efficiency and reduced operational costs would imply a smoother and more effective network operation, which contradicts the issues arising from egress. Similarly, enhanced signal quality suggests improvements in the system rather than the challenges posed by signal leakage.