CDCS-001 Free Exam Study Guide! (Updated 42 Questions)
CDCS-001 Dumps for GAQM: Date Centre Certified Exam Questions and Answer
Going through the GAQM CDCS-001 Exam preparation process is an essential aspect of being certified as a data centre specialist. CDCS-001 exam preparation process involves going through all the relevant study material and taking practice tests that will give the candidates an idea of what to expect in the actual exam. The right preparation will help build the candidates' confidence and equip them with the necessary knowledge and skills that the exam will test.
NEW QUESTION # 11
True or False: Fuel availability generally dictates the type of standby generator selected
- A. False
- B. True
Answer: B
Explanation:
Explanation
Fuel availability generally dictates the type of standby generator selected as different types of generators use different types of fuel. For example, gasoline generators are typically used in residential or small commercial applications, while diesel generators are usually used in larger industrial and commercial applications. Propane or natural gas generators may also be used, depending on the availability of fuel sources.
NEW QUESTION # 12
How many approaches are there to remove unwanted heat from an IT environment?
- A. Five
- B. Four
- C. Six
- D. Seven
Answer: A
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 # 13
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. Standby
- B. Active
- C. Passive
- D. Alternate
Answer: A
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 # 14
__________ represents the maximum power cable of being drawn by the equipment.
- A. Power rating
- B. Grade rating
- C. Star rating
- D. VA rating
Answer: A
Explanation:
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 # 15
______________ security means keeping unauthorized or ill-intentioned people out of places that they do not belong.
- A. Physical
- B. Network
- C. Logical
- D. Topological
Answer: A
Explanation:
Explanation
Physical security means keeping unauthorized or ill-intentioned people out of places that they do not belong.
This can involve a variety of measures, such as locks, alarms, access control systems, cameras, and guards.
Physical security is an important part of any security system, as it helps to protect valuable assets and personnel from theft, vandalism, and other malicious activities.
NEW QUESTION # 16
Which one of the following is an overall consideration for physical security?
- A. Identify the problem
- B. Define the problem
- C. Apply the solution
- D. Apply the technology
Answer: B
Explanation:
Explanation
Defining the problem is an important overall consideration for physical security. This process involves identifying and analyzing the threats and vulnerabilities that could potentially affect the security of the system, as well as determining what steps need to be taken to mitigate these risks. This process should be done before any other steps are taken to ensure physical security, as it helps to ensure that the security measures are tailored to the specific needs of the system.
NEW QUESTION # 17
For which one of these processes is Direct Current essential, and will not work with alternating current?
- A. Heating
- B. Electrolysis
- C. Lighting
- D. Turning a motor
Answer: B
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 # 18
Which type of Circuit Breaker uses an electromagnetic coil to pull a switch when a circuit carries too much current?
- A. Magnetic
- B. Thermal
- C. Static
- D. Pull
Answer: A
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 # 19
Which one of the following controls the voltage produced at the output of the alternator?
- A. Voltage Regulator
- B. Voltage Meter
- C. Voltage Backup Device
- D. Voltage Stabilizer
Answer: A
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 # 20
Which one of the following uses sensors such as laser beams or touch sensor?
- A. Backup device
- B. Alarms
- C. CCTV
- D. Server
Answer: B
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 # 21
A typical data center load would consist of _____ (Choose 3)
- A. Computers
- B. Cooling equipment
- C. Software
- D. Networking equipment
- E. Power generator
Answer: A,B,E
NEW QUESTION # 22
What are the two main applications for ac (alternate current)?
- A. power, information
- B. electric, magnetic
- C. direct, pulsating
- D. static, dynamic
Answer: A
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 # 23
____________ is a systematic variation of the voltage wave form or a series of random voltage changes of small dimensions.
- A. Voltage fluctuation
- B. Frequency variation
- C. Standby variation
- D. Voltage truncation
Answer: A
Explanation:
Explanation
Voltage fluctuation is a systematic variation of the voltage waveform or a series of random voltage changes of small dimensions that occur over a period of time. Voltage fluctuation can be caused by a variety of factors, such as changes in demand, changes in the power system, faults on the power system, or the switching of large loads.
NEW QUESTION # 24
A __________ generator system is a combination of an electrical generator and a mechanical engine mounted together to form a single piece of equipment.
- A. standby
- B. active
- C. software
- D. passive
Answer: A
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 # 25
Which one of the following is an advantage of Air Cooled Self-Contained System?
- A. Lowest installation cost
- B. All components contain more than one unit
- C. It has more heat removal capacity per unit
- D. It doesn't requires ductwork and/or dropped ceiling
Answer: D
Explanation:
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 # 26
Which one of the following is an advantage of Glycol Cooled System?
- A. Can be used in big data centers
- B. No additional cost is required
- C. No maintenance of glycol
- D. Glycol pipes can run long distances and can service several CRAC units
Answer: D
Explanation:
Explanation
Glycol cooled systems are advantageous because they are efficient and can service large data centers with multiple racks. Furthermore, glycol pipes can run long distances, allowing a single system to service several CRAC units. This eliminates the need for multiple systems, resulting in cost savings and reduced maintenance.
NEW QUESTION # 27
What are the two main applications for ac (alternate current)?
- A. power, information
- B. electric, magnetic
- C. direct, pulsating
- D. static, dynamic
Answer: A
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 # 28
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