DCDC-002 BICSI Data Center Design Consultant – DCDC Questions and Answers

Raised floor allows for better airflow and cable management

Solid floor allows for better cooling efficiency and higher load capacity

Raised floor is cheaper and easier to install

Solid floor is more flexible and adaptable to changing needs

65 degrees

60 degrees

55 degrees

70 degrees

75 degrees

6 inches

7 inches

8 inches

9 inches

10 inches

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

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

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

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

N

N+1

2N

2N+1

3N

Standard, Backup and Emergency

Prime, Continuous and Standby

Primary, Secondary and Tertiary

Normal, Redundant and Fault-tolerant

In the cold aisle

Above the access floor

In the plenum space

In the equipment room

In the office area

100 square feet

B 240 square feet

250 square feet

280 square feet

None of above

2 ft

4 ft

6 ft

8 ft

Hot aisle containment system encloses the hot aisle to prevent mixing with the cold air while cold aisle containment system encloses the cold aisle to prevent mixing with the hot air

Hot aisle containment system is more efficient in terms of cooling than cold aisle containment system

Cold aisle containment system is more cost-effective than hot aisle containment system

Hot aisle containment system is more flexible and adaptable to changing needs than cold aisle containment system

At least two circuits from one substation fed via alternative power grid

Two balanced feeds with different voltages derived from a single distribution station

One circuit from one substation, separate paths

At least four circuits each from different distribution stations but fed via common feeders

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

it should be used for additional storage purposes

it should be left open to allow for better ventilation

they should be turned off to save energy costs

At Least Two Circuits From Same Power Grid But Different Substations And Separate Paths

One Balanced Feeder Coordinated With Upstream Backup Feed

One Circuit From Single Sub Station Fed Via Additional Path from Alternate Power Grid

Two Balanced Feeds With Same Voltage Derived From A Single Distribution Station

Star

Mesh

Bus

Top of Rack

power distribution units, not power distribution equipment, remote power panels, and power strips

transformers only

Uninterrupted Power Supply (UPS) only

Circuit Breakers only

to house the telecommunications main grounding busbar

to store backup telecommunication devices

as a dedicated location outside building

None of these

Waste-disposal units and dumpsites only.

Petroleum storage installations like petrol stations & oil storage facilities only.

Fireworks manufacturing companies only.

All of The Above

64.4 degrees

60 degrees

55 degrees

70 degrees

75 degrees

5%

10%

15%

20%

Transforming voltage

Delivering power directly to the server racks

Transferring control between utility and generator

Managing cooling systems

150

300

450

600

adjacent to the non-secured loading dock

far away as possible from secure data

adjacent to security offices

adjacent to the secured loading dock

None of above

Rated power * .01

IT load * .01

Rated power * .02

IT load * .02

Rated power * .05

Only computer rooms

Storage Areas

Any concealed places

Loading Docks

Computer rooms, Loading docks, storage areas, Staging areas and Vendor Storage

Type 4 - What you possess

Type 5 - What you desire

Type 6 - What you create

Type 1 - What you have

Type 2 - What you know

Type 3 - What you are

the electrical Room

computing Room

Mechanical Room

Security Rooms

Non-combustible materials

all

24 "

30 "

36 "

42 "

45%

50%

55%

60%

In the computer room

In a separate building on the campus

Adjacent to or in a secured space within the computer room

Anywhere with easy access to the outside

away from computer room, adjacent to equipment entrance at data center

next door to computing area

outermost point of Data Centre

Near Backup Generator

All

20-50%

40-60%

60-80%

80-100%

4 inches and 6 inches

6 inches and 8 inches

8 inches and 10 inches

10 inches and12inches

1-2 feet

3-4 feet

5-6 feet

7-8 feet

At Least 3 Miles

At Least 5 Miles

At least 10 miles

None of the above.

24 hours

48 hours

72 hours

96 hours

provide backup power to IT equipment only

supply power to the restrooms during a utility outage

back up office lighting

all of the above

4 feet along entire route

22 feet along entire route

44 feet along entire route

66 Feet Along the Entire Route

2 feet

3 feet

4 feet

5 feet

55 degrees

60 degrees

65 degrees

70 degrees

75 degrees

circulation and support equipment

principal loads

computer

electrical equipments

redistribution systems

all of above

Min. of 2 ft but recommended 6 ft.

Min. of 4 ft but recommended 6 ft.

Min. of 6 ft but recommended 8 ft.

Min. of 8 ft but recommended 10 ft.

Energy utilization, efficiency of cooling and redundant generators

Physical security, environmental monitoring, backup power source

Reduce transmission loss, conduit path minimizing & spacing requirement for system

Leakage current control, firewall protection & hardening redundancy

0.01-0.05 inches water gauge

0.05-0.1 inches water gauge

0.1-0.15 inches water gauge

0.15-0.2 inches water gauge