DU0-001 Online Practice Questions and Answers

What is a fundamental purpose of a step-up or step-down transformer?

A. Supply a neutral reference on the secondary side that is different than what is supplied on the primary side.

B. Supply a ground reference on the secondary side that is different than what is supplied to the primary side.

C. Deliver a voltage reference on the secondary side of the transformer different than what is supplied to the primary side.

D. Deliver the same voltage reference on the secondary side of the transformer equal to that supplied on the primary side.

What are two circuit breaker types found in a building or data center? (Choose two.)

A. Thermal

B. Magnetic

C. Fast-acting

D. Photovoltaic

Which substance transfers heat most efficiently?

A. Gas

B. Solid

C. Liquid

D. Vapor

What percentage of electricity used to power IT equipment is typically converted into heat?

A. 85%

B. 90%

C. 95%

D. 99%

Which is an example of a rack-oriented cooling architecture?

A. A cooling unit is located in the ceiling plenum to cool the data center racks.

B. A cooling unit is located within the rack itself to cool the contents of that rack.

C. A cooling unit utilizes perforated raised floor tiles to deliver cool air to the rack.

D. A cooling unit is located along the perimeter wall of the data center to cool a specific zone of racks.

Which two choices would ease the maintenance and serviceability of equipment in a data center? (Choose two)

A. Underfloor cabling

B. Proper cable management

C. Split rear doors to allow for easier access

D. Unique enclosures to meet specific equipment needs

Which statement describes the capability of a data cable installation?

A. Category 5 cable can support 1 Gigabit Ethernet.

B. Category 5e cable can support 1 Gigabit Ethernet

C. Category 6a cable can support 10 Gigabit Ethernet.

D. Category 6a cable can support 100 Gigabit Ethernet.

Tracking achievement against agreed upon service levels is an example of which specific management process?

A. Planned down time

B. Infrastructure improvement

C. Availability metrics reporting

D. Advanced warning for failure

Which of the following is an example of equipment that would be monitored by a building management system (BMS) ?

A. A network router

B. A telephone switch

C. A data center server

D. A comfort-air conditioning system

What represents the optimum scenario for investing in network-critical physical infrastructure (NCPI) technologies?

A. NCPI cost is low and the risk/cost of downtime is high.

B. NCPI cost is high and the risk/cost of downtime is low.

C. The projected cost of downtime has not yet been established.

D. Oversize the initial NCPI investment to minimize the possibility of downtime.