Network Defense Essentials (NDE) Practice Exam

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Study for the Network Defense Essentials Test. Dive into multiple choice questions with hints and explanations. Prepare thoroughly for your exam!

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Which lighting system is specifically used during power failures?

Task lighting
Emergency lighting
Ambient lighting
Natural lighting

The correct answer is: Emergency lighting

Emergency lighting is specifically designed to operate during power failures. Its primary function is to provide illumination in critical areas to ensure safety and facilitate safe evacuation. Typically found in commercial buildings, schools, and public facilities, this type of lighting is strategically placed to illuminate escape routes, exits, and high-traffic areas, helping people navigate in low-light conditions when standard lighting is unavailable. This lighting system is often powered by backup batteries or generators, ensuring that it activates automatically when a power outage occurs. Emergency lighting is crucial for maintaining safety protocols during unexpected power failures, helping to prevent confusion and accidents in the dark. Other lighting types serve different purposes: task lighting focuses on illuminating specific work areas, ambient lighting provides general illumination for comfort, and natural lighting relies on sunlight, which is not available during a power outage.