DU0-001 Online Practice Questions and Answers

What does the term "5-nines" availability mean?

A. 5 minutes of downtime per year

B. 9 minutes of downtime per year

C. 14 minutes of downtime per year

D. 45 minutes of downtime per year

In three-phase power, by how many degrees are the three basic power waveforms offset?

A. 60

B. 90

C. 120

D. 180

When is frequency variation a more likely occurrence?

A. When using new UPS technology

B. When using older UPS technology

C. When a generator is heavily loaded

D. When using three-phase power distribution

What are three critical considerations when managing IT equipment operations at the rack level?

(Choose three.)

A. Sound insulation

B. Security breaches

C. Generator availability

D. Status of rack PDUs

E. Power conditions of rack PDUs

How do blanking panels improve cooling within an enclosure?

A. By increasing the mixture of hot and cold air

B. By increasing air intake through vented doors

C. By directing exhaust heat into IT equipment intakes

D. By limiting the recirculation of air into IT equipment

What is the main advantage of using a wider than standard enclosure (over 600 mm)?

A. Supports more servers

B. Provides additional U space

C. Increases space for network cabling

D. Improves strength for seismic applications

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.

Which two clean agents are commonly specified for data center fire suppression? (Choose two.)

A. Inergen

B. FE-130

C. FM-200

D. Halon 1211

Which three factors should be considered when evaluating physical security systems? (Choose three.)

A. VESD protocols

B. User friendliness

C. Cost of equipment

D. Color of security hardware components

E. Likelihood of locking out legitimate users

What are the three basic physical security categories that describe technologies for personnel identification? (Choose three.)

A. Who you are

B. Where you are

C. What you have

D. Who you know

E. What you know