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The CDCS certification exam is ideal for professionals who wish to advance their career in the field of data centres. Certified Data Centre Specialist (CDCS) certification is recognized globally and is highly respected in the industry. Certified Data Centre Specialist (CDCS) certification exam is also a great way for professionals to demonstrate their expertise and commitment to the field of data centres. The CDCS certification exam is a valuable asset for professionals who work in data centres, as it demonstrates their knowledge and skills in managing and optimizing data centre operations.
GAQM CDCS-001 exam is designed to test the knowledge and skills of professionals in various areas of data centre management. CDCS-001 exam covers topics such as data centre design, infrastructure, operations, security, and disaster recovery. Certified Data Centre Specialist (CDCS) certification program is designed to provide professionals with the knowledge and skills they need to manage and operate data centres effectively. The program also aims to help individuals develop their careers in the field of data centres.
NEW QUESTION # 24
What are the two main applications for ac (alternate current)?
- A. static, dynamic
- B. power, information
- C. direct, pulsating
- D. electric, magnetic
Answer: B
Explanation:
The two main applications for AC (alternate current) are power and information. AC is used to generate and transfer power to electrical devices, and is also used to carry information signals in telecommunications.
NEW QUESTION # 25
Which one of the following controls the voltage produced at the output of the alternator?
- A. Voltage Stabilizer
- B. Voltage Regulator
- C. Voltage Backup Device
- D. Voltage Meter
Answer: B
Explanation:
A voltage regulator controls the voltage produced at the output of the alternator. It's a device that maintains the output voltage of an alternating current (AC) power source within a safe range. The voltage regulator compares the actual output voltage to the desired voltage level and adjusts the voltage accordingly.
Voltage Meter, Voltage Stabilizer, and Voltage Backup Device are not devices that control the voltage produced at the output of the alternator. They are different types of equipment and have different functions.
A voltage meter is a device used to measure the voltage in an electrical circuit. A voltage stabilizer is an electronic device that maintains a constant voltage level. A voltage backup device is a device that provides temporary backup power in case of an electrical outage.
NEW QUESTION # 26
Which one of the following is a Physical Security Device?
- A. Contactless smart card
- B. Token card
- C. Access Key
- D. Fiber optic cable
Answer: A
Explanation:
A contactless smart card is a physical security device that uses radio frequency identification (RFID) technology to identify and authenticate an individual. This type of card is used in a variety of applications, such as access control systems and digital payment systems. It is also used in physical access control systems, where the card is used to unlock doors or grant access to restricted areas. Contactless smart cards are also used in building access systems, where the card is used to grant access to certain areas of the building.
NEW QUESTION # 27
Every air distribution system has a ____________ system and a _________ system
- A. Supply, Return
- B. Supply, Release
- C. Supply, Reverse
- D. Maintenance, Regulation
Answer: A
Explanation:
Every air distribution system has a supply system, which delivers conditioned air to the space, and a return system, which collects the air from the space and returns it to the air handling unit. The return system is responsible for providing the necessary negative pressure in the space to ensure proper air circulation.
NEW QUESTION # 28
Which type of circuit breaker uses an electromagnetic coil to trip the switch when the current exceeds safe limits?
- A. Static
- B. Pull
- C. Magnetic (Selected)
- D. Thermal
Answer: C
NEW QUESTION # 29
Which one of the following uses sensors such as laser beams or touch sensor?
- A. Alarms
- B. Server
- C. Backup device
- D. CCTV
Answer: A
Explanation:
Explanation
Alarms are physical security devices that use sensors such as laser beams or touch sensors to detect movement or intrusion. These devices are used to alert the user of any unauthorized activity in the area. Alarms can also be used in combination with CCTV cameras to provide a comprehensive security system.
NEW QUESTION # 30
True or False: The availability of fuel typically determines the type of standby generator chosen.
- A. True
- B. False
Answer: A
NEW QUESTION # 31
Which one of the following is an advantage of Air Cooled Self-Contained System?
- A. All components contain more than one unit
- B. Lowest installation cost
- C. It has more heat removal capacity per unit
- D. It doesn't requires ductwork and/or dropped ceiling
Answer: D
Explanation:
Air cooled self-contained systems are highly efficient and do not require ductwork and/or dropped ceiling for installation. This makes them a great choice for locations where installation costs are a major factor, such as in residential applications, or in places with limited space. Additionally, air cooled self-contained systems have more heat removal capacity per unit compared to water cooled systems, making them more cost- effective in the long run.
NEW QUESTION # 32
Which component protects electrical equipment from overloads or short circuits?
- A. Transfer Switch
- B. Stabiliser
- C. Transient
- D. Circuit Breaker
Answer: D
NEW QUESTION # 33
Every air distribution system has which two types of systems?
- A. Supply, Release
- B. Supply, Return (Selected)
- C. Supply, Reverse
- D. Maintenance, Regulation
Answer: B
NEW QUESTION # 34
Which one of the following is a disadvantage of Water Cooled System?
- A. All components are located inside the CRAC
- B. Condenser water piping loops long distances
- C. Introduces an additional source of liquid
- D. Usage of the building's condenser water is less expensive than chilled water
Answer: C
Explanation:
Water cooled systems introduce an additional source of liquid, which can be a potential source of contamination and damage to the IT equipment. Additionally, water cooled systems require more maintenance than air cooled systems and are more expensive to install due to the additional cost of the cooling tower, piping, and pumps.
NEW QUESTION # 35
___________ measures the amount of electrical current flowing through a circuit during a specific time interval.
- A. Volts
- B. Ampere
- C. Watts
- D. Ohm
Answer: B
Explanation:
An ampere (A) is the unit of measurement for electric current. It measures the amount of electrical current flowing through a circuit during a specific time interval. The ampere is named after Andre-Marie Ampere, a French mathematician and physicist who was one of the main discoverers of electromagnetism.
Ohm (#) is the unit of measurement for electric resistance, which is the opposition to the flow of an electric current through a circuit.
Volt (V) is the unit of measurement for electric potential difference, which is the energy required per unit charge to move a test charge between two places in a static electric field.
Watt (W) is the unit of measurement for power, which is the rate at which energy is used or generated in an electrical circuit.
References:
"Current" (https://www.britannica.com/topic/current-electricity)
"Electric current" (https://www.sciencedirect.com/topics/engineering/electric-current)
"Units of Measurement" (https://www.allaboutcircuits.com/textbook/direct-current/chpt-1/units-of- measurement/)
NEW QUESTION # 36
For which one of these processes is Direct Current essential, and will not work with alternating current?
- A. Turning a motor
- B. Lighting
- C. Heating
- D. Electrolysis
Answer: D
Explanation:
Explanation
Direct Current (DC) is essential for the process of electrolysis. Electrolysis is the process of breaking down a compound using an electric current. The electric current causes ions to move, which results in a chemical reaction that breaks down the compound. In order for electrolysis to work, a direct current is required, as the ions must flow in one direction. Alternating Current (AC) changes direction and would not provide a consistent flow of ions.
Heating, lighting, and turning a motor can be done by either DC or AC. Heating can be done by passing an electric current through a heating element, which can be powered by either DC or AC. Lighting can be done by passing an electric current through a light bulb, which can be powered by either DC or AC. A motor can be powered by either DC or AC, but the type of motor and the application will determine which type of current is more suitable.
NEW QUESTION # 37
Which one of the following controls the voltage produced at the output of the alternator?
- A. Voltage Stabilizer
- B. Voltage Regulator
- C. Voltage Backup Device
- D. Voltage Meter
Answer: B
Explanation:
Explanation
A voltage regulator controls the voltage produced at the output of the alternator. It's a device that maintains the output voltage of an alternating current (AC) power source within a safe range. The voltage regulator compares the actual output voltage to the desired voltage level and adjusts the voltage accordingly.
Voltage Meter, Voltage Stabilizer, and Voltage Backup Device are not devices that control the voltage produced at the output of the alternator. They are different types of equipment and have different functions.
A voltage meter is a device used to measure the voltage in an electrical circuit. A voltage stabilizer is an electronic device that maintains a constant voltage level. A voltage backup device is a device that provides temporary backup power in case of an electrical outage.
NEW QUESTION # 38
Which of the following is an example of a physical security identification method?
- A. Voice
- B. Expression
- C. Batch ID
- D. Sound
Answer: B
NEW QUESTION # 39
Which power distribution component is commonly used when multiple electrical devices are located in close proximity, particularly for audio, video, and computer equipment?
- A. Backup server
- B. Server plug
- C. Outlet strips
- D. Power distribution units (PDU) (Selected)
Answer: D
NEW QUESTION # 40
Which type of Circuit Breaker uses an electromagnetic coil to pull a switch when a circuit carries too much current?
- A. Static
- B. Pull
- C. Magnetic
- D. Thermal
Answer: C
Explanation:
Magnetic circuit breakers use an electromagnetic coil to pull a switch when a circuit carries too much current, thus tripping the circuit and preventing it from exceeding its rated amperage.
NEW QUESTION # 41
Which is a systematic variation of the voltage waveform or a series of small, random voltage changes?
- A. Voltage truncation
- B. Standby variation
- C. Frequency variation
- D. Voltage fluctuation
Answer: D
NEW QUESTION # 42
__________ represents the maximum power cable of being drawn by the equipment.
- A. Power rating
- B. Star rating
- C. VA rating
- D. Grade rating
Answer: A
Explanation:
Power rating represents the maximum power that can be drawn by the equipment. It is usually measured in watts (W) or kilowatts (kW) and represents the maximum amount of power that the equipment can consume without causing damage to the device or the power source.
VA rating (Volt-Ampere rating) is a measure of the apparent power in a circuit, which is the product of the voltage and current in the circuit. It is often used to describe the power handling capability of electronic devices and equipment.
Star rating is a rating system used to indicate the energy efficiency of electrical devices and equipment. The rating ranges from 1 to 5 stars, with 5 stars indicating the most energy-efficient device.
Grade rating is a rating system used to indicate the quality of electrical devices and equipment. It is used in different industry and can indicate the quality of electronic component and material used in equipment.
NEW QUESTION # 43
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