2024 Realistic Verified CDCP exam dumps Q&As - CDCP Free Update [Q33-Q50]

2024 Realistic Verified CDCP exam dumps Q&As – CDCP Free Update [Q33-Q50]

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2024 Realistic Verified CDCP exam dumps Q&As – CDCP Free Update

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NEW QUESTION 33
Which type of Humidifier suspends quartz lamps over an open pool of water?

Infrared Humidifiers

Water Canister Humidifier

Steam Canister Humidifier

Ultrasonic Humidifier

Infrared humidifiers are a type of humidifier that use quartz lamps to heat water in an open pool and evaporate it into the air. They are energy-intensive and require frequent maintenance and cleaning. They are not recommended for data centers, as they can introduce contaminants and bacteria into the air, and increase the risk of fire and electrical hazards.
References: EPI Data Centre Training Framework, CDCP Preparation Guide, Make Humidification Adjustments | ENERGY STAR

NEW QUESTION 34
Does unplanned downtime of a data centre have an impact on the business results?

No, because data centres operate independently from the business.

No, unplanned data centre downtime is already financially planned for in the yearly budget planning process.

Yes, data centre downtime can result in business downtime.

Yes, but data centre downtime only impacts the airline industry.

Data centres are essential for supporting the IT operations and applications of various businesses across different industries. Data centre downtime can have a negative impact on the business results, such as loss of revenue, customer satisfaction, productivity, reputation, and competitive advantage. According to a web search, the average cost of data centre downtime in 2020 was $8,851 per minute, and the average duration of a data centre outage was 95 minutes1. This means that a typical data centre outage could cost a business over
$840,000 in direct and indirect losses1. Therefore, data centre downtime can have a significant impact on the business results, regardless of the industry or sector.
References: Unplanned Downtime Costs More Than You Think, Downtime, Outages and Failures – Understanding Their True Costs, The Unplanned Downtime Nightmare – And How Operators Can Avoid

NEW QUESTION 35
What is the current recommended temperature for ICT equipment as described in the ASHREA TC 9.9 guideline?

8-18 C (46.4 -64.4 °F)

20-40 °C (68 – 104 °F)

18-27 C (64.4 – 80.6°F)

25-45 °C (77 – 113 °F)

The current recommended temperature for ICT equipment as described in the ASHRAE TC 9.9 guideline is
18-27 C (64.4 – 80.6°F). This is the recommended range for the dry-bulb temperature at the inlet of the servers, which is the most critical parameter for ensuring the optimal performance and reliability of the ICT equipment. The recommended range is based on the thermal specifications of the majority of the ICT equipment in the market, as well as the energy efficiency and environmental considerations of the data centre cooling systems. The recommended range is suitable for Classes A1 to A4 of the ASHRAE thermal guideline classes, which cover different types and generations of ICT equipment.
References:
1: 2021 Equipment Thermal Guidelines for Data Processing Environments – ASHRAE2, page 1, Table 2.1 3:
ASHRAE TC9.9 Data Center Power Equipment Thermal Guidelines and Best Practices4, page 10, section 2.1
5: Does your Data Center Follow ASHRAE TC 9.9 Thermal Guidelines for Data Processing Environments?6, page 1, section 1

NEW QUESTION 36
What is a requirement of an FM200 (HFC-227) installation?

It is a high-pressure gas; therefore nozzles must be mounted with two brackets.

Drainage system under the raised floor.

Install the gas containers (tanks) close to the data centre.

Install pre-action sprinklers in the same room as the FM200.

FM200 (HFC-227) is a clean agent fire suppression system that uses a high-pressure gas to extinguish fires by reducing the oxygen concentration and absorbing the heat. FM200 is stored in cylinders at pressures of up to
42 bar (600 psi) and is released through nozzles into the protected area. Because of the high pressure, the nozzles must be mounted with two brackets to prevent them from moving or breaking during discharge. The brackets must be securely attached to the ceiling or wall and aligned with the nozzle outlet. The nozzle outlet must also be free of any obstructions that could affect the discharge pattern or distribution.
References:
*EPI Data Centre Professional (CDCP®) Preparation Guide, page 32
*FSL-227 Technical Manual, page 10
*Firetrace ILP Manual, page 21

NEW QUESTION 37
Which one of the following is a factor that can affect Availability and Reliability?

Inadequate Cooling

Employee Salaries

Radio Active Waves

Attenuation

Availability and reliability are two important aspects of data centre performance that measure how often the system is operational and how dependable it is. According to the EPI Data Centre Framework, availability is the percentage of time that a system or component is in an operable state, while reliability is the probability that a system or component will perform its required function under given conditions for a specified period of time. Both availability and reliability can be affected by various factors, such as design, maintenance, human error, power supply, security, etc. One of the factors that can have a significant impact on both availability and reliability is cooling. Cooling is essential for maintaining the optimal temperature and humidity levels for the IT equipment and preventing overheating, which can cause failures, downtime, and reduced lifespan.
Inadequate cooling can result from insufficient capacity, poor airflow management, faulty components, or environmental conditions. Inadequate cooling can reduce the availability and reliability of the data centre by increasing the risk of thermal stress, hot spots, performance degradation, and equipment damage. Therefore, cooling is a critical factor that can affect availability and reliability in a data centre.
References:
*EPI Data Centre Framework1
*EPI Data Centre Training Framework2
*EPI Data Centre Competence Framework3
*Data Center Availability, Reliability Hinge On Numerous Factors4
*A Look at Data Center Reliability and Availability5

NEW QUESTION 38
systems are designed specifically to protect the structure of a building.

Pro-inert

Inergen

Water sprinkler

Total Flooding

Water sprinkler systems are designed to protect the structure of a building from fire by suppressing or extinguishing the flames with water. Water sprinkler systems are typically installed in the ceiling or walls of a building and are activated by heat or smoke detectors. Water sprinkler systems can reduce the risk of fire spreading and causing structural damage to the building.
References:
*EPI Data Centre Professional (CDCP®) Preparation Guide, page 28
*Fire Protection Systems for Data Centers | EPI

NEW QUESTION 39
Measuring “Business Values” begins first with.

Physical Infrastructure

Topology

Network

Budget

Measuring “Business Values” begins first with budgeting and identifying the costs associated with the project.
This includes understanding the economic impact of the project, such as the cost of labor, materials, and other resources. It is also important to evaluate the return on investment (ROI) of the project, which will help to determine its overall value. Additionally, it is important to consider the long-term impact of the project and its potential to add value to the business in the future.

NEW QUESTION 40
Where should exit/emergency signs be located?

Depends on the policy of the data centre

At every escape door and pathways leading to doors (arrows)

In the Computer room only

At each door

According to the EPI Data Centre Operations Standard (DCOS), exit/emergency signs should be located at every escape door and pathways leading to doors (arrows) to ensure a safe and quick evacuation in case of an emergency1. This is also consistent with the best practices for data centre emergency preparedness and response, which recommend having a clear and visible signage system for emergency exits23.
References: 1: EPI Data Centre Operations Standard (DCOS), Version 2.0, Section 5.4.2.1, Page 42 2: How to Prepare and Respond to Data Center Emergencies, White Paper 217, Schneider Electric, Page 4 3: How to Properly Manage Data Center Emergencies, IT Business Edge, Slide 2

NEW QUESTION 41
Which one of the following is used in Measuring Business Value?

Regeneration Cost

Scalability

Reliability

Upfront Cost

Measuring business value is the process of assessing the benefits and costs of IT investments and initiatives in relation to the strategic objectives and priorities of the organization. One of the factors that can be used to measure business value is scalability, which is the ability of a system or component to handle increasing workloads or demands without compromising performance, quality, or functionality. Scalability is important for business value because it enables the organization to adapt to changing market conditions, customer expectations, and growth opportunities. Scalability can also reduce operational costs, increase efficiency, and improve customer satisfaction. Therefore, scalability is one of the factors that can be used in measuring business value.
References:
*EPI Data Centre Training Framework1
*EPI Data Centre Competence Framework2
*Measuring the Business Value of IT3
*How to Measure the Business Value with Effective Data Quality Governance
*7 Rules for Demonstrating the Business Value of IT

NEW QUESTION 42
Which type of Humidifier is composed of water-filled canister containing electrodes?

Infrared Humidifiers

Water Canister Humidifier

Steam Canister Humidifier

Ultrasonic Humidifier

A steam canister humidifier is a type of humidifier that uses electricity to heat water in a canister containing electrodes. The water conductivity and the water level determine the amount of current and steam production.
The steam canister humidifier is also known as an electrode boiler humidifier or an electrode steam humidifier123.
References: 1: EPI Data Centre Professional (CDCP®) Reference Materials, page 192: Electrode and resistive type humidifiers compared | steamovap technologies inc3: Know-How | Electrode Steam Humidifier – Condair Group.

NEW QUESTION 43
Which one of the following is an AC Power Quality Anomaly?

Signal Distortion

Waveform Distortion

Backup Condition

Attenuation

Waveform distortion is a type of AC power quality anomaly that occurs when the shape of the voltage or current waveform deviates from the ideal sinusoidal shape. Waveform distortion can be caused by nonlinear loads, such as rectifiers, inverters, variable frequency drives, and electronic devices, that draw current in pulses or harmonics. Waveform distortion can result in overheating, reduced efficiency, malfunctioning, or damage of equipment.
References: EPI Data Centre Training Framework, CDCP Preparation Guide, 5 anomalies in AC power that can damage your home devices, 9 Most Common Power Quality Problems

NEW QUESTION 44
What is the primary reason to install a monitoring system in the data centre?

To notice abnormalities early so that actions can be taken to avoid disasters

To create a proper asset database

To implement automated change management

To be able to collect data for capacity planning

The primary reason to install a monitoring system in the data centre is to notice abnormalities early so that actions can be taken to avoid disasters, according to the CDCP Preparation Guide1 and various web sources234. A monitoring system is a system that collects and analyzes data about the power, cooling, environmental, and security conditions in the data centre, and alerts the operators or managers about any issues or threats that may affect the performance, availability, or reliability of the data centre. A monitoring system can help to prevent or minimize the impact of disasters, such as power outages, fire, water damage, overheating, equipment failure, or cyberattacks, by providing timely and accurate information that enables fast and corrective action. A monitoring system can also help to improve the energy efficiency, capacity planning, and asset management of the data centre, by providing useful insights and trends that support informed decision making.
References:
1: CDCP Preparation Guide, page 21, section 2.3.5 2: Improving Data Center Management and Monitoring5, page 1, section 1 3: Guide to Data Center Monitoring6, page 1, section 1 4: Why Data Center Monitoring is Essential7, page 1, section 1

NEW QUESTION 45
Which Class of Fires involves ordinary combustible materials such as paper, wood and cloth?

Class A

Class B

Class D

Class K

According to the CDCP® Preparation Guide, Class A fires involve ordinary combustible materials such as paper, wood and cloth. These materials leave behind ash or embers when they burn. Class A fires can be extinguished by water or other cooling agents that reduce the temperature of the fuel below its ignition point.
References: CDCP® Preparation Guide, page 30. Basics of Fire Protection in a Data Center. 3 Levels of Data Center Fire Protection Standards. Three Levels of Data Center Fire Protection.

NEW QUESTION 46
Which of statements below is true?

Single-mode cabling can use both LED and laser as a light source.

Single-mode cabling is more expensive than multi-mode cabling.

Multi-mode cabling can cross longer distances.

Multi-mode cabling is more expensive than single-mode cabling.

Single-mode cabling and multi-mode cabling are two types of fiber optic cables that differ in their core diameter, wavelength, light source, bandwidth, distance, and cost. Single-mode cabling has a smaller core diameter and uses a laser as a light source, which enables it to transmit data over longer distances and higher bandwidths. However, single-mode cabling is also more expensive than multi-mode cabling, because it requires more precise alignmentand splicing, and more costly light sources and connectors. Multi-mode cabling has a larger core diameter and uses LEDs or VCSELs as a light source, which makes it cheaper and easier to install and maintain. However, multi-mode cabling also has a shorter distance and lower bandwidth than single-mode cabling, because it suffers from more modal dispersion and attenuation.
References:
1: Data Center Cabling: Single Mode vs Multimode Fibers2, page 1, section 1 3: Single Mode vs Multimode Fiber Cable Guide4, page 1, section 1 5: Single-Mode vs. Multi-Mode Fiber Cables: Explained6, page 1, section 1 7: 2 Types of Fiber Optic Cable: Single Mode vs. Multimode Fiber8, page 1, section 1

NEW QUESTION 47
A fire extinguisher in the data centre is found which is classed as ABC.
Is this suitable?

Yes

Depends on the brand

Only for fires not related to electrical power

A fire extinguisher in the data centre that is classed as ABC is not suitable, because it contains dry chemical powder that can damage the ICT equipment and the data. ABC fire extinguishers are designed to fight Class A, B, and C fires, which are fueled by combustible materials, flammable liquids or gases, and electrical equipment, respectively. However, the dry chemical powder can leave a corrosive residue on the ICT equipment, which can cause short circuits, data loss, or malfunction. Moreover, the dry chemical powder can be difficult to clean, especially from the small spaces and crevices of the ICT equipment. Therefore, ABC fire extinguishers are not recommended for data centres, and should be replaced with more suitable fire extinguishers, such as clean agent fire extinguishers, which use gas or liquid that does not leave any residue or harm the ICT equipment.
References:
1: CDCP Preparation Guide, page 24, section 2.4.3 2: Data Center Fire Suppression: Overview & Protection Guide3, page 1, section 1 4: Fire Extinguisher Classes and Suitability5, page 1, section 1 6: SAFETY DATA SHEET Commercial ABC Dry Chemical (Fire Extinguishing Agent …7, page 1,

NEW QUESTION 48
is the arithmetic mean of time between the failing and the subsequent running of the system in a particular time period.

MTBF

MCBF

MLBF

MTTR

MTBF stands for Mean Time Between Failures, and it is the arithmetic mean of time between the failing and the subsequent running of the system in a particular time period. MTBF is a measure of reliability that indicates how often a system or component fails during its operation. MTBF can be calculated by dividing the total operating time by the number of failures over a given period. For example, if a system operates for 1000 hours and experiences 5 failures, the MTBF is 1000/5 = 200 hours.
References: EPI Data Centre Training Framework, CDCP Preparation Guide, MTBF, MTTR, MTTF, MTTA:
Understanding incident metrics – Atlassian

NEW QUESTION 49
When having two non-synchronized power sources, the ATS / STS need to be of the type:

Break before make.

Make before break.

Both make before break or break before make can be used.

Both an ATS and STS can never handle two non-synchronized sources.

When having two non-synchronized power sources, the ATS / STS need to be of the type break before make, which means that the switch disconnects from one source before connecting to the other source. This prevents any short circuit, back feed, or phase mismatch that could occur if the two sources were connected simultaneously. Break before make switches are also known as open transition switches, because they create a brief interruption in the power supply during the switching process. This interruption is usually acceptable for most ICT equipment, as they have internal power supplies or batteries that can handle the transient. However, if the interruption is not acceptable, then the two power sources need to be synchronized before switching, which requires a make before break switch, also known as a closed transition switch. Make before break switches connect to the second source before disconnecting from the first source, which ensures a seamless transfer of power without any interruption. However, make before break switches require that the two sources have the same voltage, frequency, and phase, which can be achieved by using a synchronization module or a phase-locked loop.
References:
1: CDCP Preparation Guide, page 17, section 2.3.1 2: STS in data centres – Borri3, page 1, section 1 4: Using Static Transfer Switches to Enhance Data Center … – Donwil5, page 1, section 1 6: What is an Automatic Transfer Switch (Power)? | Ethan Banks7, page 1, section 1

NEW QUESTION 50
What is the main difference between an Environmental Monitoring System (EMS) and a Building Management System (BMS)?

An EMS provides local alarms. A BMS provides both local and remote alarms.

A BMS is only able to monitor dry contacts (on/off). An EMS can also monitor analog values.

A BMS only operates as a stand-alone system. An EMS can be configured as a redundant system.

An EMS monitors only. A BMS monitors and controls.

The main difference between an Environmental Monitoring System (EMS) and a Building Management System (BMS) is that an EMS monitors only, while a BMS monitors and controls. An EMS is a system that collects and records data from various sensors and devices that measure environmental parameters, such as temperature, humidity, air quality, power, and water. An EMS provides alerts and reports based on the data, but it does not control or adjust the environmental conditions. A BMS is a system that integrates and manages various building systems, such as HVAC, lighting, security, fire, and access. A BMS not only monitors the data from these systems, but also controls and optimizes them to achieve the desired performance and efficiency. A BMS can also communicate with an EMS to receive data and provide feedback.
References:
1: Environmental Monitoring Systems vs Building Management Systems2, page 1, section 1 3: Building Monitoring System vs Environmental Monitoring System4, page 1, section 1 5: BUILDING AND ENVIRONMENTAL MANAGEMENT SYSTEMS AND HOW THEY MEET GMP …6, page 1, section 1 7:
Environmental Monitoring System vs. Building Management System8, page 1, section 1

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