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NEW QUESTION # 11
A typical data center load would consist of _____ (Choose 3)
- A. Software
- B. Computers
- C. Power generator
- D. Cooling equipment
- E. Networking equipment
Answer: B,C,D
NEW QUESTION # 12
Which one of the following measures the real power drawn by the load equipment?
- A. Volts
- B. Amps
- C. Watts
- D. Amperes
Answer: C
Explanation:
Explanation
Watts measures the real power drawn by the load equipment and is determined by multiplying the volts and amps of the load
NEW QUESTION # 13
___________ protects electrical equipment from damage caused by overload or short circuit.
- A. Volt switch
- B. Circuit breaker
- C. Server
- D. IEC cable
Answer: B
Explanation:
Explanation
A circuit breaker is a device that protects electrical equipment from damage caused by overload or short circuit. It does this by automatically disconnecting the power supply when it detects a surge or drop in voltage, preventing the equipment from being damaged.
NEW QUESTION # 14
Which one of the following is an advantage of using Natural Gas?
- A. More exhaust able
- B. Maximum carbon build up
- C. Minimum carbon build up
- D. Tends to cost more
Answer: C
Explanation:
Explanation
The main advantage of using natural gas is that it tends to produce fewer carbon emissions than other fossil fuels, such as coal or oil. Natural gas combustion produces less carbon dioxide and other pollutants than other fuels, making it a cleaner and more renewable source of energy. Additionally, natural gas costs less than other fuels, making it a more cost-effective option.
NEW QUESTION # 15
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:
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 # 16
___________ measures the amount of electrical current flowing through a circuit during a specific time interval.
- A. Volts
- B. Watts
- C. Ohm
- D. Ampere
Answer: D
Explanation:
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 # 17
Which one of the following Volt Configurations support commercial environments and data centers?
- A. 3-phase 280V
- B. Single phase 120V and 240V
- C. Single phase 120V
- D. Single phase 240V
Answer: A
NEW QUESTION # 18
How many approaches are there to remove unwanted heat from an IT environment?
- A. Four
- B. Six
- C. Seven
- D. Five
Answer: D
Explanation:
Explanation
There are five common approaches to removing unwanted heat from an IT environment:
* Air conditioning: using mechanical cooling to remove heat from the air.
* Air economization: using outside air to cool the IT environment when the temperature is cooler than the desired temperature inside the data center.
* Liquid cooling: using a liquid coolant to absorb and remove heat from IT equipment.
* Evaporative cooling: using water evaporation to cool the air.
* Immersion cooling: submerging IT equipment in a liquid coolant to remove heat.
NEW QUESTION # 19
Which type of Circuit Breaker uses an electromagnetic coil to pull a switch when a circuit carries too much current?
- A. Thermal
- B. Magnetic
- C. Static
- D. Pull
Answer: B
Explanation:
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 # 20
Which type of outlet is used for non-computing devices?
- A. Harmonic
- B. Grounding
- C. Static
- D. Convenience
Answer: D
Explanation:
Explanation
Convenience outlets, also known as duplex receptacles or wall outlets, are used to provide power to non-computing devices, such as lamps, televisions, and other household appliances. They are typically found in residential and commercial buildings and are connected to a circuit breaker or fuse for protection against overloading and electrical fires
NEW QUESTION # 21
What is a Data Center?
- A. A building or a portion of a building where debugging takes place
- B. A room in a building dedicated to monitoring data and information.
- C. A building or portion of a building whose primary function is to research new data.
- D. A building or a portion of a building whose primary function is to house a computer room and its related support areas
Answer: D
Explanation:
Explanation
A building or a portion of a building whose primary function is to house a computer room and its related support areas. A Data Center is a secure, temperature-controlled environment that houses computer systems, equipment, and associated components. It is typically used to store, process, and distribute large amounts of data and information. Data Centers typically include server racks, storage arrays, network switches, firewalls, and other components necessary for the operation of computer systems.
NEW QUESTION # 22
Which system in Air Distribution System takes the hot exhaust air from the IT equipment to the CRAC
- A. Supply system
- B. Regulation system
- C. Return system
- D. Maintenance system
Answer: C
Explanation:
Explanation
The return system in an air distribution system takes the hot exhaust air from the IT equipment and returns it to the Computer Room Air Conditioner (CRAC) unit. The CRAC unit cools the hot exhaust air and recirculates it back into the data center. The return system typically includes ducts, grills, and other components that allow the hot air to be efficiently and effectively returned to the CRAC unit.
Supply system is responsible for bringing in the cooled and filtered air from the CRAC unit to the data center.
Maintenance system and regulation system are not related to air distribution system in the data center.
NEW QUESTION # 23
A __________ generator system is a combination of an electrical generator and a mechanical engine mounted together to form a single piece of equipment.
- A. software
- B. passive
- C. active
- D. standby
Answer: D
Explanation:
Explanation
A Standby Generator System is a combination of an electrical generator and a mechanical engine mounted together to form a single piece of equipment. The generator provides power to essential appliances and equipment in the event of a power outage. Standby Generator Systems are usually powered by gasoline, diesel, natural gas, or propane, and they are designed to be able to be activated quickly in the event of an emergency.
NEW QUESTION # 24
Which type of power can be a source available to the data center that takes over the function of supplying when utility power is unavailable?
- A. Passive
- B. Standby
- C. Active
- D. Alternate
Answer: B
Explanation:
Explanation
Standby power, also known as backup power, is a type of power that can be a source available to the data center that takes over the function of supplying when utility power is unavailable. Standby power systems are designed to provide power to critical loads in the event of a power outage, and can include generators, uninterruptible power supplies (UPS), and batteries. Standby power systems can be used to provide power to the data center for a short period of time, such as a few hours or days, until utility power is restored.
Passive, Active and Alternate are not specific type of power sources used in data center. They are terms used in different context and have different meaning.
NEW QUESTION # 25
Every air distribution system has a ____________ system and a _________ system
- A. Supply, Release
- B. Supply, Reverse
- C. Supply, Return
- D. Maintenance, Regulation
Answer: C
Explanation:
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 # 26
AC is more easily distributed than DC. This is because:
- A. Wires have less resistance if they are carrying AC
- B. AC can be transformed from a low voltage to a high voltage and back again with a transformer. DC cannot.
- C. DC needs wires to be totally insulated, while AC wires can be bare, hung from insulator on pylons.
- D. AC can be transmitted using lighter wires.
Answer: B
Explanation:
Explanation
AC can be transformed from a low voltage to a high voltage and back again with a transformer, while DC cannot. This makes it easier to distribute AC electricity over long distances and is why it is used more widely than DC electricity. A and B are also true, as wires carrying AC can be bare and don't need to be totally insulated. Wires have less resistance when carrying AC electricity, which is why it is more efficient than DC.
NEW QUESTION # 27
Which one of the following is a Physical Security Device?
- A. Access Key
- B. Contactless smart card
- C. Fiber optic cable
- D. Token card
Answer: B
Explanation:
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 # 28
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CDCS-001 exam questions from Exam4Free dumps: https://www.exam4free.com/CDCS-001-valid-dumps.html (42 Q&As)
Free 2023 GAQM: Date Centre CDCS-001 dumps are available on Google Drive shared by Exam4Free: https://drive.google.com/open?id=1Z9ZR37YIAYu6v6ht02a8W1XMCcNk-eHH
