مسابقة Energy University Power Over Ethernet's Effect on Wiring Closets MCQ Course Answers Ahmed Amin اخر تحديث : Heat is dissipated both inside and outside of the wiring closet. T F When selecting a UPS for a wiring closet, one should consider which of the following? The total power required in Watts The run time required in minutes The level of redundancy desired The voltages and receptacles required All of the above Which of the following is a benefit of Power over Ethernet? Reduction in cabling Freedom regarding location of devices Less required physical infrastructure All of the above Which of the following typical wiring closet characteristics is NOT a major challenge They are usually hidden in a building They usually hold equipment with varying airflow patterns They are usually poorly lit and poorly ventilated They contain equipment that produces more heat than ever before Which of the following is the most accurate description of a midspan PSE? A unit which injects power at the switch along with data traffic A unit which injects power upstream, after the network switch A unit that injects power at the switch against data traffic. None of the above are accurate descriptions of a midspan PSE Which of the following is the most accurate description of an endpoint PSE? A unit which injects power at the switch along with data traffic A unit which injects power upstream, after the network switch A unit that injects power at the switch against data traffic. None of the above are accurate descriptions of an endpoint PSE Current flowing through cable causes energy to dissipate in the form of heat. T F Which of the following is ASHRAE's recommended maximum room temperature for wiring closets? 60°F (16°C) 67°F (19°C) 70°F (21°C) 77°F (25°C) Which of the following is the correct term for the cooling method that involves heat leaving the room through the walls and ceiling? Conduction Passive ventilation Active ventilation Dedicated air conditioning Which of the following is a case where dedicated air conditioning is appropriate even when ventilation appears to be a technically viable? The ventilation air outside the closet contains significant dust or other contaminants. The ventilation air outside the closet is subject to excessive temperature swings. Practical constraints, such as leases or cosmetics, make it impossible to add ventilation ducts All of the above Link To Course تعديل المقال الأقسام مسابقة Energy University ENERGY UNIVERSITY COURSES Racks and Cabling مقالات قد تهمك
