DCDC-003.1 Free Practice Test

What is the minimum distance recommended between a data center's backup generator and the main data center building?

1. A. 10 feet
2. B. 20 feet
3. C. 30 feet
4. D. 40 feet

Correct Answer: C

What is the difference between a hot aisle and a cold aisle containment system?

1. A. Hot aisle containment system encloses the hot aisle to prevent mixing with the cold air while cold aisle containment system encloses the cold aisle to prevent mixing with the hot air
2. B. Hot aisle containment system is more efficient in terms of cooling than cold aisle containment system
3. C. Cold aisle containment system is more cost-effective than hot aisle containment system
4. D. Hot aisle containment system is more flexible and adaptable to changing needs than cold aisle containment system

Correct Answer: A

How do you calculate thermal load in a data center?

1. A. IT Thermal Output + Cooling System
2. B. IT Thermal Output + Lighting System
3. C. IT Thermal Output + PDU System
4. D. IT Thermal Output + Cooling System + Lighting System
5. E. IT Thermal Output + Cooling System + Lighting System + PDU System

Correct Answer: E

According to NEB, what is the recommended rate of temperature change per hour in a data center?

1. A. 36 degrees
2. B. 45 degrees
3. C. 54 degrees
4. D. 63 degrees
5. E. 72 degrees

Correct Answer: C

What's conservative' hydrogen maximum flow rate per minute for battery.

1. A. 500 cm/m²
2. B. 21 cm/m⊃2;
3. C. 61 cm/m⊃2;
4. D. None of these answer

Correct Answer: B