DU0-001 Online Practice Questions and Answers

Which statement illustrates a characteristic of nominal voltage?

A. Nominal voltage is the voltage reference published by the power company.

B. In most geographies, nominal voltage is fixed at either 380 V or 460 V.

C. Nominal voltage is calculated based upon the load characteristics of the end user.

D. Nominal voltage is the voltage that is supplied to the building and factors in power distribution losses.

What is an advantage of using a diesel fuel source for a standby generator?

A. Cleaner burning fuel

B. No fuel storage problems

C. More hours of operation between engine overhauls

D. Less engine preventative maintenance requirements

Which three critical functions does grounding serve for a standby generator? (Choose three.)

A. Prevents harmonics from affecting the IT load

B. Provides a low-impedance electrical return path

C. Prevents electrical shock during maintenance and/or repair

D. Serves as a reference signal to the automatic transfer switch

E. Ensures circuit breakers trip before electrical malfunctions develop into fires

Which NCPI component protects the data center during long duration outages (several hours to days)?

A. Generator

B. Static UPS

C. Flywheel UPS

D. Automatic transfer switch

Which method transfers heat through a solid material?

A. Radiation

B. Convection

C. Conduction

D. Evaporation

Which three are network topologies? (Choose three)

A. Star

B. Ring

C. Tree

D. Wheel

E. Pyramid

When developing a management strategy, how long do organizations typically focus on fully implementing each management process before moving on to the next?

A. One to three months

B. Three to six months

C. Six to nine months

D. Nine to twelve months

What is most critical for an aircraft that is in flight?

A. Reliability

B. Availability

C. Manageability

D. Maintainability

Physical security can be increased by which three activities? (Choose three.)

A. Adding more IT personnel

B. Adding live security guards

C. Changing from smart cards to bar code badges

D. Adding concentric security zones to increase "depth of security"

E. Adding password or fingerprint verification at a card-reading checkpoint

Which two criteria make bar code cards a good choice? (Choose two.)

A. Low budget

B. Low security requirement

C. High security requirement

D. Frequently changing access privileges