DCDC-003.1無料認定試験材料はこちらの160問題
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質問 # 35
What is the recommended clearance space required for hot and cold aisles in a data center?
- A. 1-2 feet
- B. 7-8 feet
- C. 5-6 feet
- D. 3-4 feet
正解：D
質問 # 36
What types of electrical equipment is typically located inside the computer room
- A. Circuit Breakers only
- B. Uninterrupted Power Supply (UPS) only
- C. power distribution units, not power distribution equipment, remote power panels, and power strips
- D. transformers only
正解：C
解説：
Explanation:
質問 # 37
Where is the recommended location for remote power panels?
- A. suspended from ceiling
- B. inside a sealed room
- C. at one or both ends of an equipment row
- D. outside the building
正解：C
質問 # 38
What type of power utility service is desired?
- A. Renewable energy-based utility service
- B. Underground or overhead utility service
- C. Overhead utility service
- D. Direct Current (DC) utility service
正解：B
質問 # 39
What electrical service feed options are there for a data center?
- A. Dual Entrance/Dual Pathway
- B. All of the above
- C. Single Entrance/Single Pathway
- D. Single Entrance/Dual Pathway
正解：B
質問 # 40
What is the appropriate fire rating requirements for an electrical room?
- A. 3 hours
- B. 1 hour
- C. 1/2 hour
- D. 2 hours
正解：B
質問 # 41
What is the recommended floor loading capacity for a data center?
- A. 1500 lbs per sq. ft.
- B. 1000 lbs per sq. ft.
- C. 1250 lbs per sq. ft.
- D. 1750 lbs per sq. ft.
- E. 2000 lbs per sq. ft.
正解：A
質問 # 42
What is the formula to find the maximum allowable cable depth in a non-solid bottom cable tray?
- A. H = 100/1 + (L * 0.0007)
- B. H = 50/1 + (L * 0.0007)
- C. H = 200/1 + (L * 0.0007)
- D. H = 150/1 + (L * 0.0007)
正解：D
質問 # 43
What IBC occupancy category are data centers placed in if they don't have to operate after an earthquake?
- A. Category3
- B. Category2
- C. Category 4
- D. Category1
正解：B
質問 # 44
What is the most common type of automatic transfer switch?
- A. Open transition
- B. Delayed transition
- C. Soft load transition
- D. Closed transition
正解：A
質問 # 45
what additional fuel filtering is required for generators in class F3 and F4 facilities
- A. three stage, spin-on-type fuel filters
- B. four stage, paper-type fuel filters
- C. two-stage, spin-on-type fuel filters
- D. five stage, mesh type fuel filters
正解：A
質問 # 46
Which areas should generate a history of all access attempts and monitored by CCTV Security System?
- A. Any concealed places
- B. Computer rooms, Loading docks, storage areas, Staging areas and Vendor Storage
- C. Storage Areas
- D. Only computer rooms
- E. Loading Docks
正解：B
質問 # 47
What is an automatic static transfer switch used for?
- A. Switching between different generator power sources
- B. Switching between multiple utility power sources
- C. Switching between AC and DC power sources
- D. Switching between utility and generator power sources
正解：D
質問 # 48
What is the smoke development rating required for all materials hosted in a containment system?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
質問 # 49
What is the recommended height of a ceiling in a data center or telecommunications room?
- A. 0
- B. 1015ft(correct)
- C. 1112ft
- D. 012 ft
正解：B
質問 # 50
What is the United States Average Power Utility Outage Annually And What Is The Average Repair Time?
- A. Three outages annually, with an unknown average repair time
- B. 2.5 outages annually, with average repair time of approximately 7 hours
- C. 1 outage annually, with average repair time of approximately eight hours
- D. 1.86 outages annually, with average repair time of four hours
正解：D
質問 # 51
What is the clearance required for the hot aisle width?
- A. 4 ft
- B. 6 ft
- C. 2 ft
- D. 8 ft
正解：A
質問 # 52
what are the dead loads of a structure?
- A. Loads due to snow, wash
- B. Dynamic loads due to external forces like suction winds and rain
- C. Temperature fluctuations leading to expansion and contraction
- D. Static loads due to force of gravity on fixed building elements (correct)
正解：D
質問 # 53
What are the speed and distance limitations of ESCON?
- A. 10 Gbps @ up to 40km
- B. 17 MB/s @ up to 60km
- C. 1 Gbps @ up to 100m
- D. 100 Mbps @ up to 20km
正解：B
質問 # 54
What is the recommended range of temperature for a data center?
- A. 22-26°C (72-79°F)
- B. 20-24°C (68-75°F)
- C. 18-22°C (64-72°F)
- D. 26-30°C (79-86°F)
- E. 24-28°C (75-82°F)
正解：B
質問 # 55
What is a possible downside to customer-owned maintenance holes?
- A. leaks leading to water infiltration into data center
- B. susceptibility to theft or damage by unauthorized personnel
- C. poor aesthetic appearance around facility exterior
- D. fire risk near data center property
正解：A
質問 # 56
What is the NEBS GR-3028-CORE recommended operational temperature.
- A. -25°F to +125°F (-32°C to +52°C)
- B. -20°F/-28° C minimum and up to a maximum of104 ° Fahrenheit/40° Celsius
- C. Up To140 Degrees Fahrenheit /60 Degrees Celsius
- D. -30°F to +110°F (-34°C to +43°C)
正解：B
質問 # 57
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