BICSI Data Center Design Consultant - DCDC (DCDC-002) Free Practice Test

Question 1

Which network topology uses the least amount of cabling?

A. Top of Rack

B. Bus

C. Star

D. Mesh

Correct Answer: A

Question 2

What should be done with unused rack space?

A. it should be filled with blanking devices to reduce non-functional airflow

B. they should be turned off to save energy costs

C. it should be used for additional storage purposes

D. it should be left open to allow for better ventilation

Correct Answer: A

Question 3

What is the recommended fire suppression system for a data center?

A. None of the above

B. Water-based

C. Gas-based

D. Powder-based

E. Foam-based

Correct Answer: C

Question 4

What is the appropriate fire rating requirements for an electrical room?

A. 2 hours

B. 3 hours

C. 1 hour

D. 1/2 hour

Correct Answer: C

Question 5

What are the 3 different methods for grounding racks in a computer room?

A. AC power, DC power, Ethernet

B. Ground bus, direct connections, bond to rack

C. Ground conductor, surge protection, equipment rack

D. Copper cable, conduit, flexible connector

Correct Answer: B

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Question 6

What is the United States Average Power Utility Outage Annually And What Is The Average Repair Time?

A. 2.5 outages annually, with average repair time of approximately 7 hours

B. 1 outage annually, with average repair time of approximately eight hours

C. 1.86 outages annually, with average repair time of four hours

D. Three outages annually, with an unknown average repair time

Correct Answer: C

Question 7

What is the smoke development rating required for all materials hosted in a containment system?

A. 600

B. 300

C. 150

D. 450

Correct Answer: D

Question 8

What is the minimum height of a ceiling in a data center or telecommunications room?

A. eight feet from finished floor to any obstruction, sprinklers, lighting

B. Five feet from finished floor to any obstruction, sprinklers, lighting

C. ten feet from finished foroor to asany oos obstruction, sprinklers, lighting(correct)

D. twelve feet from finished floot to pay constructionjssgspritesari sek

Correct Answer: C

Question 9

What is the formula for reliability?

A. R = e^-T

B. R = T/e

C. R = log(T)

D. R = e^T

Correct Answer: A

Question 10

What 3 standards books should be followed for data center grounding and bonding?

A. TIA 942, TIA 607 and IEEE 1100

B. ASHRAE Standard 90.1, ASHRAE Standard 62.1 and ASHRAE Standard 55

C. TIA 568, ANSI/TIA-606-B and TIA 568-C.1

D. UL 467, UL 96A and NFPA 70

Correct Answer: A

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Question 11

what is the ANSI/TIA-942 typical range of pressure differential regarding positive pressure for data center.

A. Less than or equal to -0,1 in water column (-25 Pa)

B. Less Than -4,+4 inches water column(-1000 opa ,+100 <pa>)

C. More than -0,005 in wc (< -1,24 Pa), but less than or equal to +0,05in wc (+12,4 Pa)

D. More than +3in wc (>746Pa),but less than or equaltto+6,in wc(1492 pa))

Correct Answer: A

Question 12

what is the best practice performance metric to gauge thermal compliance for ASHRAE and NEBS for a given data center

A. Power Usage Effectiveness (PUE)

B. Airflow Efficiency Ratio (AFER)

C. Temperature-Humidity Index (THI)

D. Computational Fluid Dynamics (CFD) modeling

Correct Answer: D

Question 13

What type of power utility service is desired?

A. Overhead utility service

B. Underground or overhead utility service

C. Direct Current (DC) utility service

D. Renewable energy-based utility service

Correct Answer: B

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BICSI Data Center Design Consultant - DCDC (DCDC-002) Free Practice Test