DU0-001 Practice Questions

A.  

Temperature and pressure both increase.

B.  

Temperature and pressure are decreased.

C.  

Temperature and pressure are unchanged.

D.  

Temperature is unchanged and pressure is decreased.

A.  

Chilled water system

B.  

Water cooled system

C.  

Glycol cooled system

D.  

Air cooled split system

A.  

They enclose the top and bottom of racks to balance hot and cold air.

B.  

They enclose the rear of racks to ensure mixing of hot and cold air.

C.  

They enclose the front of racks to ensure reliable supply air delivery.

D.  

They enclose the rear of racks to prevent mixing of hot and cold air.

A.  

Frequency

B.  

Power factor

C.  

Actual power

D.  

Apparent power

A.  

Provision a UPS module with a different power capacity.

B.  

Change out plug types when new IT equipment is installed.

C.  

Design for "worse case" capacity to prevent future downtime.

D.  

Have N+1 redundancy in part of the data center and 2N in another part based on equipment criticality.

A.  

Two voltage sine wave references consisting of two "hot" wires and a ground

B.  

One voltage sine wave reference consisting of a "hot" wire, a neutral wire, and a ground

C.  

Three voltage sine wave references consisting of one "hot" wire, one neutral wire, and a ground

D.  

Three voltage sine wave references consisting of three "hot" wires and accompanying neutral and a ground

A.  

Key access to the critical racks

B.  

Video camera pointed directly at critical racks

C.  

Iris scanner at the entrance to the data center

D.  

Nested security perimeters with racks at the innermost level

A.  

Identical UPS systems are required.

B.  

It is the most expensive configuration.

C.  

Only single corded loads can be supported.

D.  

Design capacities are much smaller than other configurations.