Which of the following components is tested from the Forward Flight Attendant panel on the ERJ 175?

The Forward Flight Attendant panel on the ERJ 175 is designed to provide the flight attendants with the capability to monitor and test various safety features, including smoke detection systems. When it comes to smoke detection, the panel allows for the testing of both the forward and aft lavatory smoke detectors. This dual functionality ensures that flight attendants can verify the operational status of smoke detection systems in both lavatories, enhancing safety across the aircraft.

In a real-world scenario, it is crucial that both lavatory areas are adequately monitored for smoke, as the presence of smoke could indicate a fire or other hazardous situation. By testing both the forward and aft lavatory smoke detectors from this centralized location, the crew can ensure that the entire cabin environment is secure for passengers and crew alike.