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試験番号：DU0-001問題集
試験科目：APC 「Data Center University Associate Certification」
問題と解答：全325問
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NO.1 How do enclosures improve rack system cooling?
A. By improving natural air flow
B. By improving fire suppression
C. By allowing hot and cold air to mix together
D. By preventing hot and cold air from mixing together
Answer: D
APC参考書 DU0-001認定資格 DU0-001
NO.2 What describes the number of times AC current is switched back and forth over a period of 1 second?
A. Voltage
B. Frequency
C. Amperage
D. Power factor
Answer: B
APC DU0-001 DU0-001 DU0-001 DU0-001 DU0-001過去問
NO.3 What are three power distribution components found in data centers? (Choose three.)
A. Ground loop
B. Branch circuit
C. Metered outlet strip
D. Power distribution unit (PDU)
E. Valve regulated lead acid (VRLA) battery
Answer: BCD
APC DU0-001認定証 DU0-001 DU0-001
NO.4 Cooling towers are a typical component of which heat rejection system?
A. Water cooled system
B. Glycol cooled system
C. Air cooled split system
D. Air cooled self-contained system
Answer: A
APC練習問題 DU0-001 DU0-001 DU0-001 DU0-001参考書
NO.5 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
Answer: A
APC過去問 DU0-001参考書 DU0-001 DU0-001認定試験
NO.6 What is an advantage of choosing a four-post open frame rack over a two-post open frame rack?
A. Lower cost
B. Smaller footprint
C. Easier assembly
D. Increased strength
Answer: D
APC DU0-001 DU0-001
NO.7 What is the purpose of grounding?
A. To protect against electric shock
B. To step down 208 V power to 120 V power
C. To maintain the voltage during neutral wire bonding
D. To provide a path for the Ground Fault Interrupt (GFI) circuit
Answer: A
APC DU0-001 DU0-001
NO.8 What is defined as the force of electricity moving through a circuit?
A. Volt
B. Amp
C. Ohm
D. Frequency
Answer: A
APC認定試験 DU0-001認定証 DU0-001
NO.9 Which type of humidification system uses quartz lamps extended over an open pool of water to
release water vapor?
A. Infrared humidifier
B. Ultrasonic humidifier
C. Electromagnetic humidifier
D. Steam canister humidifier
Answer: A
APC DU0-001 DU0-001練習問題 DU0-001 DU0-001認証試験 DU0-001参考書
NO.10 Click the Exhibit button.
Which air distribution method is displayed in this picture?
A. Fully ducted supply, flooded return
B. Flooded supply, fully ducted return
C. Flooded supply, locally ducted return
D. Locally ducted supply, flooded return
Answer: A
APC認定試験 DU0-001認定証 DU0-001 DU0-001 DU0-001
NO.11 What is the highest cost UPS configuration?
A. System + system
B. Parallel redundant
C. Isolated redundant
D. Distributed redundant
Answer: A
APC認定試験 DU0-001 DU0-001認定資格 DU0-001 DU0-001認定資格
NO.12 What is the difference between an undervoltage and a sag?
A. A sag lasts less time than an undervoltage condition.
B. A sag has less of a voltage drop than an undervoltage condition.
C. A sag is due to downstream loads and undervoltage is due to the power source.
D. A sag occurs in low voltage distribution and undervoltage occurs in high voltage distribution.
Answer: A
APC認定証 DU0-001 DU0-001認定証
NO.13 The rear of an IT equipment rack is fitted with a duct that is connected to a drop ceiling plenum; the
plenum is connected by a duct to the perimeter CRAC unit. The CRAC unit discharges air into a raised
floor. The IT equipment rack is located above a hole in the raised floor which allows conditioned air to
enter the rack.
This is an example of which type of air distribution system?
A. Flooded supply, fully ducted return
B. Locally ducted supply, flooded return
C. Flooded supply, locally ducted return
D. Fully ducted supply, fully ducted return
Answer: D
APC過去問 DU0-001 DU0-001 DU0-001
NO.14 What is required for the transfer of heat from one object to another?
A. A difference in airflow
B. A difference in volume
C. A difference in pressure
D. A difference in temperature
Answer: D
APC DU0-001 DU0-001認定試験 DU0-001問題集
NO.15 What would be a comprehensive strategy for protecting the most critical racks of a data center?
A. Key access to the critical racks
B. Video camera pointed directly at critical racks
C. Iris scanner at the entrance to the data center
D. Nested security perimeters with racks at the innermost level
Answer: D
APC過去問 DU0-001 DU0-001認定証 DU0-001認証試験 DU0-001
NO.16 Click the Exhibit button.
Which air distribution method is displayed in the exhibit?
A. Flooded supply, flooded return
B. Flooded supply, fully ducted return
C. Flooded supply, locally ducted return
D. Locally ducted supply, flooded return
Answer: A
APC DU0-001 DU0-001 DU0-001認定試験
NO.17 Click the Exhibit button.
Which air distribution method is displayed in this picture?
A. Flooded supply, fully ducted return
B. Flooded supply, locally ducted return
C. Locally ducted supply, flooded return
D. Locally ducted supply, flooded return
Answer: B
APC認定試験 DU0-001 DU0-001
NO.18 What is a component of the network-critical physical infrastructure (NCPI)?
A. Voice over IP
B. Fire protection
C. Office supplies
D. Desktop application software
Answer: B
APC DU0-001認定資格 DU0-001認定証 DU0-001認定試験
NO.19 What does GFCI mean?
A. Ground Fault Circuit Interrupter
B. General Facilities Cooling Index
C. Gaussian Filter Charge Indicator
D. Grounded Flaw Circuitry Installed
Answer: A
APC DU0-001 DU0-001 DU0-001
NO.20 What is a difference between Single-phase and three-phase power?
A. Single-phase power is flat but three-phase power is sinusoidal.
B. Single-phase power is dependent on power factor but three-phase power is not.
C. Single-phase power is limited to approximately 120 kW but three-phase power is unlimited.
D. Single-phase power is more costly for the power company to distribute than three-phase power.
Answer: D
APC DU0-001 DU0-001
NO.21 What describes the ratio of watts to volt-amps?
A. Frequency
B. Power factor
C. Actual power
D. Apparent power
Answer: B
APC過去問 DU0-001練習問題 DU0-001
NO.22 Which statement correctly defines direct current (DC)?
A. Only high voltage is used.
B. Electricity flows in one direction only.
C. The circuit does not have multiple paths.
D. The circuit is directly attached to the power source.
Answer: B
APC参考書 DU0-001 DU0-001過去問
NO.23 What are three benefits of Inergen? (Choose three.)
A. It is non-conductive.
B. It has zero ozone depletion potential.
C. It has a low pressure delivery system.
D. It requires less storage tanks than Halon.
E. It is safe to discharge in an occupied area.
Answer: ABE
APC DU0-001参考書 DU0-001
NO.24 An infrared scan of cabling can detect what two problems? (Choose two.)
A. An overloaded circuit
B. A loose connection
C. Compatibility errors
D. Electrical interference
Answer: AB
APC DU0-001 DU0-001
NO.25 What is the unit of measurement of the electrical resistance of a circuit?
A. Volt
B. Amp
C. Ohm
D. Frequency
Answer: C
APC DU0-001参考書 DU0-001 DU0-001認定証 DU0-001
NO.26 What is the unit of measurement of the electrical current moving through a circuit?
A. Volt
B. Amp
C. Ohm
D. Frequency
Answer: B
APC DU0-001 DU0-001認証試験
NO.27 What does the CFD acronym stand for?
A. Certified Field Dichotomy
B. Circular Flow Determination
C. Computational Finite Deviation
D. Computational Fluid Dynamics
Answer: D
APC DU0-001 DU0-001参考書 DU0-001練習問題 DU0-001
NO.28 What is an example of a standard building management system (BMS) protocol?
A. IPV6
B. TCP/IP
C. MODBUS
D. 10/100 BASE-T
Answer: C
APC DU0-001問題集 DU0-001 DU0-001
NO.29 What are three advantages of biometric access control? (Choose three.)
A. Cannot be lost
B. Inexpensive to deploy
C. Difficult to fool the sensor
D. Cannot be shared with others
E. Always correctly identifies the user
Answer: ACD
APC練習問題 DU0-001 DU0-001練習問題
NO.30 Requiring frequent password changes can compromise security because _____.
A. Users tend to write down frequently changed passwords
B. It makes the password database an easier target for hackers
C. It makes it harder for legitimate users to access their own data
D. It burdens the IT help desk with requests for forgotten or expired passwords
Answer: A
APC DU0-001 DU0-001 DU0-001過去問 DU0-001
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