2023年最新のDCDC-002試験資料DCDC-002学習ガイド
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BICSI DCDC-002試験は、データセンターデザインコンサルタントに特化した個人向けの認定プログラムです。この試験は、データセンターの計画、設計、および実装に関する候補者の知識と専門知識をテストすることを意図しています。電源や冷却、セキュリティ、ネットワークデザイン、ケーブルインフラストラクチャなど、データセンターデザインに関連する幅広いトピックをカバーする包括的な試験です。
質問 # 29
What is the maximum recommended number of racks in an aisle?
- A. 40 racks
- B. 20 racks
- C. 30 racks
- D. 10 racks
正解：B
質問 # 30
What is the minimum aisle width?
- A. 3 feet
- B. Arm span distance between technicians
- C. Twice server cabinet depth
- D. The width shouldn't exceed more than half room length
正解：A
質問 # 31
what is the ANSI/TIA-942 typical range of pressure differential regarding positive pressure for data center.
- A. Less Than -4,+4 inches water column(-1000 opa ,+100 <pa>)
- B. More than +3in wc (>746Pa),but less than or equaltto+6,in wc(1492 pa))
- C. More than -0,005 in wc (< -1,24 Pa), but less than or equal to +0,05in wc (+12,4 Pa)
- D. Less than or equal to -0,1 in water column (-25 Pa)
正解：D
質問 # 32
What is the first preference regarding utility service, class F4?
- A. At least two circuits from two separate substations, diverse substation power grids and separate paths
- B. At least two circuits from one substation, same path
- C. At least one circuit from two separate substations, different voltage levels
- D. One circuit from one substation, separate paths
正解：A
質問 # 33
What is the distance from the bottom of the access floor to the bottom of the cable tray?
- A. 9 inches
- B. 8 inches
- C. 6 inches
- D. 7 inches
- E. 10 inches
正解：B
質問 # 34
What is the minimum distance recommended between a data center's backup generator and the main data center building?
- A. 30 feet
- B. 20 feet
- C. 10 feet
- D. 40 feet
正解：A
質問 # 35
What are the 3 different methods for grounding racks in a computer room?
- A. AC power, DC power, Ethernet
- B. Ground conductor, surge protection, equipment rack
- C. Copper cable, conduit, flexible connector
- D. Ground bus, direct connections, bond to rack
正解：D
解説：
Explanation
質問 # 36
What is the difference between a hot aisle and a cold aisle containment system?
- A. Cold aisle containment system is more cost-effective than hot aisle containment system
- B. Hot aisle containment system is more flexible and adaptable to changing needs than cold aisle containment system
- C. 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
- D. Hot aisle containment system is more efficient in terms of cooling than cold aisle containment system
正解：C
質問 # 37
what can take up to40 percent of overall space in the equipment area?
- A. principal loads
- B. electrical equipments
- C. redistribution systems
- D. computer
- E. all of above
- F. circulation and support equipment
正解：F
解説：
Explanation
質問 # 38
What is the clearance required for the hot aisle width?
- A. 8 ft
- B. 6 ft
- C. 4 ft
- D. 2 ft
正解：C
質問 # 39
what is the maximum recommended elevation for a data center
- A. 1,000 ft
- B. 10,000 ft
- C. 15,000 ft
- D. 5,000 ft
正解：B
質問 # 40
What type of slope is considered too extreme for a data center site?
- A. 15%
- B. 10%
- C. 20%
- D. 5%
正解：A
質問 # 41
What is the ASHRAE TC 9.9 recommended range for humidity levels in a data center?
- A. 20-50%
- B. 80-100%
- C. 40-60%
- D. 60-80%
正解：C
質問 # 42
What is recommended size ratio of Secure Storage Area?
- A. None Of These
- B. 15-20% more than Computer Room's Cross Sectional Area
- C. 5% of Computer Room Space
- D. 10% or greater than Available Floor Space
- E. 10% of Computer Room's Net Square Footage
正解：E
質問 # 43
Where should the entrance room be located within a data center?
- A. Anywhere with easy access to the outside
- B. In the computer room
- C. In a separate building on the campus
- D. Adjacent to or in a secured space within the computer room
正解：D
質問 # 44
Where should power cable be ran in an access floor?
- A. Cold aisle
- B. Below the access floor
- C. Hot aisle
- D. Above the access floor
正解：A
質問 # 45
What room should have direct access to the computer room?
- A. Break room
- B. Network Operations Center (NOC)
- C. Administrative office
- D. Server room
正解：B
質問 # 46
where should printers be located
- A. beside high traffic areas
- B. near equipment that has active air flow to cool them down
- C. placed outdoor, away from building facilities
- D. in a dedicated print room with dedicated air handling system
正解：D
質問 # 47
What are three reasons for locating the power distribution unit outside the computer room?
- A. removes maintenance item, removes a source of heat, allows P D U to occupy less expensive space
- B. lowers electricity costs, improves network speed, enhances security measures
- C. reduces cable congestion, prevents water damage, provides better access points
- D. increases cooling efficiency, eliminates fire hazard, minimizes noise pollution
正解：A
質問 # 48
What is the recommended clearance space required for hot and cold aisles in a data center?
- A. 3-4 feet
- B. 5-6 feet
- C. 1-2 feet
- D. 7-8 feet
正解：A
質問 # 49
What is the recommended range for the high temperature in a data center according to ASHRAE?
- A. 80.6 degrees
- B. 75 degrees
- C. 90 degrees
- D. 85 degrees
- E. 70 degrees
正解：A
質問 # 50
What is the high temperature that must be maintained in a data center according to TIA-942?
- A. 77 degrees
- B. 75 degrees
- C. 85 degrees
- D. 80 degrees
- E. 70 degrees
正解：A
質問 # 51
What are the steps involved in a security survey and analysis?
- A. Identify potential vulnerabilities
- B. Assess security controls and countermeasures
- C. All of the above
- D. Evaluate environmental factors
正解：C
質問 # 52
What is the formula for reliability of components in parallel?
- A. R = RA1 + RA2
- B. R = RA1 / RA2
- C. R = 1 - ([1-RA1) * (1-RA2)]
- D. R = RA1 - RA2
正解：C
質問 # 53
What is the acceptable dew point level in a data center according to TIA-942?
- A. 60 degrees
- B. 75 degrees
- C. 69.8 degrees
- D. 65 degrees
- E. 80 degrees
正解：C
質問 # 54
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