CDCS-001 Questions - Truly Beneficial For Your GAQM Exam (Updated 42 Questions)
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NEW QUESTION # 12
____________ is a systematic variation of the voltage wave form or a series of random voltage changes of small dimensions.
- A. Voltage fluctuation
- B. Voltage truncation
- C. Frequency variation
- D. Standby variation
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 # 13
Which one of the following is an overall consideration for physical security?
- A. Define the problem
- B. Apply the technology
- C. Identify the problem
- D. Apply the solution
Answer: A
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 # 14
What is a Data Center?
- A. A building or portion of a building whose primary function is to research new data.
- B. A room in a building dedicated to monitoring data and information.
- C. A building or a portion of a building whose primary function is to house a computer room and its related support areas
- D. A building or a portion of a building where debugging takes place
Answer: C
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 # 15
Which one of the following Volt Configurations support commercial environments and data centers?
- A. Single phase 120V
- B. Single phase 240V
- C. Single phase 120V and 240V
- D. 3-phase 280V
Answer: D
NEW QUESTION # 16
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 # 17
Which mounted system can use any of the five heat removal methodologies?
- A. Floor Mounted System
- B. Air Mounted System
- C. Ceiling Mounted System
- D. Chilled Mounted System
Answer: C
NEW QUESTION # 18
A typical data center load would consist of _____ (Choose 3)
- A. Computers
- B. Networking equipment
- C. Power generator
- D. Software
- E. Cooling equipment
Answer: A,C,E
NEW QUESTION # 19
Whenever electrical power is being consumed in an IT room or data center. __________ is generated.
- A. Humidity
- B. Heat
- C. Static electricity
- D. Condensation
Answer: B
Explanation:
Explanation
Whenever electrical power is being consumed in an IT room or data center, heat is generated. This heat must be removed in order to maintain an optimal temperature for the equipment, and this is usually done through cooling systems such as air conditioning, air economization, liquid cooling, evaporative cooling, and immersion cooling.
NEW QUESTION # 20
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 # 21
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 # 22
Which one of the following is a Physical Security Device?
- A. Token card
- B. Contactless smart card
- C. Access Key
- D. Fiber optic cable
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 # 23
AC is more easily distributed than DC. This is because:
- A. AC can be transmitted using lighter wires.
- B. DC needs wires to be totally insulated, while AC wires can be bare, hung from insulator on pylons.
- C. Wires have less resistance if they are carrying AC
- D. AC can be transformed from a low voltage to a high voltage and back again with a transformer. DC cannot.
Answer: D
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 # 24
Which one of the following describes the amount of resistance electricity encounters?
- A. Volts
- B. Ampere
- C. Watts
- D. Ohm
Answer: D
Explanation:
Explanation
Ohm () describes the amount of resistance electricity encounters. It is one of the base units of the International System of Units (SI), and is defined as the amount of resistance that a conductor has when a force of one volt is applied across it. Ohms are used to measure the electrical resistance of a circuit, and can be used to determine the power of a circuit or the amount of current flowing through it.
NEW QUESTION # 25
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. Alternate
- B. Standby
- C. Active
- D. Passive
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 # 26
__________ represents the maximum power cable of being drawn by the equipment.
- A. VA rating
- B. Star rating
- C. Grade rating
- D. Power rating
Answer: D
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 # 27
Which mounted system is used to cool small IT environments?
- A. Floor Mounted System
- B. Air Mounted System
- C. Chilled Mounted System
- D. Ceiling Mounted System
Answer: B
Explanation:
Explanation
An air mounted system is often used to cool small IT environments. This type of cooling system is typically mounted on the wall or ceiling and works by blowing cool air into the room to lower the temperature. Air mounted systems are compact, easy to install and maintain, and can be a cost-effective solution for small spaces.
NEW QUESTION # 28
Which power distribution component is often used when many electrical devices are enclosed proximity especially with audio, video and computers?
- A. Outlet strips
- B. Backup server
- C. Power distribution units (PDU)
- D. Server plug
Answer: C
Explanation:
Explanation
The best option for enclosing many electrical devices in proximity, especially with audio, video and computers, is Power Distribution Units (PDUs). PDUs are designed to provide power to multiple devices using a single power source, such as a wall outlet or a generator, while providing protection against power surges.
PDUs are generally equipped with multiple outlets to allow for a variety of electrical devices to be connected and powered simultaneously.
NEW QUESTION # 29
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