Amazon Data Centre Operations Technician interview questions

1. Tell us about yourself 2. What is the Difference between analog and digital system. 3.Between analog and digital which one do we use to Start up the system. 4. What is kW and kVA 5.Explain the Building Management Systems operation. 6.What is PDU. 7.Why do you think UPS are very essential to our network because they are expensive and they can only last for 20 seconds. 8. Explain N+1, 2N and N-1. 9.Mention three components that are in the UPS, AHU,Chillers,Cooling Towers and VFDs. 10. Why do we need to synchronize/parallel the Generators. 11. Explain Variable Frequency Drive (VFD)operation. 12. Explain the process that the Chillers use to heat fro the building. you must know the operation of the chiller here. 13.Explain a Difficult situation that was out of your role where you had to make a decision , what was the outcome. 14. How do you deliver results?