100% Accurate Answers! Mar-2026 CDCS-001 Actual Real Exam Questions
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NEW QUESTION # 25
In an air distribution system, which subsystem carries the hot exhaust air from IT equipment to the CRAC unit?
- A. Maintenance system
- B. Regulation system
- C. Supply system
- D. Return system (Selected)
Answer: D
NEW QUESTION # 26
__________ represents the maximum power cable of being drawn by the equipment.
- A. VA rating
- B. Power rating
- C. Grade rating
- D. Star rating
Answer: B
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 cooling system is typically used for small IT environments?
- A. Ceiling Mounted System (Selected)
- B. Chilled Mounted System
- C. Air Mounted System
- D. Floor Mounted System
Answer: A
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. Server plug
- D. Power distribution units (PDU)
Answer: D
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
Which three of the following typically make up a data center load?
- A. Networking equipment (Selected)
- B. Computers
- C. Software
- D. Cooling equipment (Selected)
- E. Power generator
Answer: A,B,D
NEW QUESTION # 30
___________ security refers to preventing unauthorized or malicious individuals from accessing areas where they do not belong
- A. Topological
- B. Physical
- C. Logical
- D. Network
Answer: B
NEW QUESTION # 31
Which one of the following is a Physical Security Identification Method?
- A. Batch ID
- B. Voice
- C. Expression
- D. Sound
Answer: B
Explanation:
Voice identification is a physical security identification method that uses the sound of an individual's voice to identify them. This method is often used in combination with other identification methods, such as biometric scans, to provide a more secure form of authentication. Voice identification is used in a variety of situations, such as when accessing a secure facility or when making financial transactions.
NEW QUESTION # 32
Which mounted system is used to cool small IT environments?
- A. Air Mounted System
- B. Ceiling Mounted System
- C. Chilled Mounted System
- D. Floor Mounted System
Answer: A
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 # 33
Which one of the following is an advantage of Air Cooled Self-Contained System?
- A. It has more heat removal capacity per unit
- B. All components contain more than one unit
- C. It doesn't requires ductwork and/or dropped ceiling
- D. Lowest installation cost
Answer: C
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 # 34
True or False: Human error is a major cause of data center downtime
- A. True
- B. False
Answer: A
Explanation:
Explanation
Human error is a major cause of data center downtime. Human mistakes are one of the top causes of data center outages, accounting for around one-third of all downtime incidents. Common causes of human error in data centers include misconfiguration, inadequate maintenance, and improper security practices. To reduce the risk of human error, it is important to ensure that data center staff receive proper training, have adequate access control measures in place, and are familiar with best practices for data center operations.
NEW QUESTION # 35
Which one of the following is an overall consideration for physical security?
- A. Apply the solution
- B. Identify the problem
- C. Define the problem
- D. Apply the technology
Answer: C
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 # 36
Which of the following processes requires direct current (DC) and cannot function with alternating current (AC)?
- A. Turning a motor
- B. Lighting
- C. Electrolysis
- D. Heating
Answer: C
NEW QUESTION # 37
The distance that a signal's energy can travel in the time it takes for one cycle to occur is called the signal's:
- A. frequency
- B. amplitude
- C. wavelength
- D. period
Answer: C
Explanation:
Wavelength is a measure of the distance that a signal's energy can travel in the time it takes for one cycle of the signal to occur. It is calculated by dividing the speed of light by the frequency of the signal. Wavelength is generally expressed in meters (m).
NEW QUESTION # 38
Which one of the following is a disadvantage of Water Cooled System?
- A. All components are located inside the CRAC
- B. Introduces an additional source of liquid
- C. Condenser water piping loops long distances
- D. Usage of the building's condenser water is less expensive than chilled water
Answer: B
Explanation:
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 # 39
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. software
- C. active
- 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 # 40
Which of the following is an example of a physical security identification method?
- A. Batch ID
- B. Voice
- C. Sound
- D. Expression
Answer: D
NEW QUESTION # 41
For which one of these processes is Direct Current essential, and will not work with alternating current?
- A. Turning a motor
- B. Lighting
- C. Electrolysis
- D. Heating
Answer: C
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 # 42
Which of the following controls the voltage output of an alternator?
- A. Voltage Meter
- B. Voltage Stabilizer
- C. Voltage Regulator
- D. Voltage Backup Device
Answer: C
NEW QUESTION # 43
True or False: A grounded wire is connected to metal appliance cases
- A. True
- B. False
Answer: A
Explanation:
Explanation
A grounded wire is connected to metal appliance cases in order to provide a safe path for electricity to flow in the event of a short circuit or other electrical problem. This helps to protect the appliance and the people using it from potential electrical shocks, and it also helps prevent fires and other accidents.
NEW QUESTION # 44
Which one of the following is a Physical Security Identification Method?
- A. Batch ID
- B. Voice
- C. Expression
- D. Sound
Answer: B
Explanation:
Explanation
Voice identification is a physical security identification method that uses the sound of an individual's voice to identify them. This method is often used in combination with other identification methods, such as biometric scans, to provide a more secure form of authentication. Voice identification is used in a variety of situations, such as when accessing a secure facility or when making financial transactions.
NEW QUESTION # 45
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