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EXIN CDCP Exam Syllabus Topics:

Topic	Details
Topic 1	Raised Floor Suspended Ceiling: The topic discusses applicable standards, signal reference grid, and disability act and regulations.
Topic 2	Auxiliary Systems: The topic covers water leak detection systems, data centre monitoring requirements, EMS, BMS and DCIM.
Topic 3	Power Infrastructure: It focuses ATS and STS systems, redundancy levels and techniques, static and dynamic UPS systems, battery types, thermo-graphics, and renewable energy factor (REF).
Topic 4	Light: This topic covers light fixture types and placement, emergency lighting, and emergency Power Supply (EPS).
Topic 5	Physical Security and Safety: Sub-topics are about physical security considerations and physical safety considerations.
Topic 6	Data Centre Location, Building and Construction: It focuses on appropriate sites and components of an effective data centre and supporting facilities setup.
Topic 7	Electro Magnetic Fields: The topic deals with effects of EMF on human health and equipment (H)EMP, standards, and EMF shielding solutions.

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EXIN Certified Data Centre Professional (CDCP) Sample Questions (Q62-Q67):

NEW QUESTION # 62
The UPS vendor is offering the latest model of their UPS to you. The vendor indicates that the UPS is categorized as VFD class.
Is this UPS a fit for your mission-critical data centre?

A. No
B. Yes
C. Yes, but only if they install it with a 12-pulse rectifier.
D. Yes, but only if you oversize the battery bank with 10%.

Answer: A

Explanation:
A UPS (uninterruptible power supply) that is categorized as VFD class is not a fit for your mission-critical data centre, because it does not provide adequate protection against voltage and frequency variations. VFD stands for Voltage and Frequency Dependent, which means that the output voltage and frequency of the UPS depend on the input voltage and frequency. VFD UPSs are also known as offline, standby, or line-interactive UPSs. They typically switch to battery power only when the input power fails or goes beyond a certain threshold. However, this switching may cause a brief interruption or a transient in the output power, which can affect the performance and reliability of the ICT equipment. Moreover, VFD UPSs do not filter or regulate the input power, which means that they pass on any voltage or frequency fluctuations, harmonics, or noise to the output power. These power quality issues can also damage or degrade the ICT equipment and the data.
For your mission-critical data centre, you need a UPS that is categorized as VFI class, which stands for Voltage and Frequency Independent. VFI UPSs are also known as online, continuous, or double-conversion UPSs. They provide a constant and clean output power that is independent of the input power. VFI UPSs convert the input AC power to DC power, and then convert it back to AC power with the desired voltage and frequency. This double conversion process isolates the output power from the input power, and eliminates any power quality issues. VFI UPSs also have zero switching time, which means that they do not cause any interruption or transient in the output power when switching to battery power. VFI UPSs are designed to protect the ICT equipment and the data from any adverse effects of voltage and frequency variations, and to ensure the highest level of availability and reliability.
References:
1: CDCP Preparation Guide, page 17, section 2.3.1 2: Understanding UPS Classification: Fuji Electric's Technical Guide3, page 1, section 1 4: Uninterruptible Power Supplies Key Product Criteria5, page 1, section
1 6: UPS Function: Reduced Input Voltage for VFDs - KEB7, page 1, section 1

NEW QUESTION # 63
What should be a consideration when having casters (rollers/wheels) or feet under the rack?

A. Skirts at the bottom of the rack to avoid air flow between the hot and cold aisles.
B. The casters and feet should be larger to avoid a too heavy point load on the floor tile.
C. Casters and feet should be of a soft material, for example rubber, to avoid damage to the raised floor tile.
D. Casters and feet should not be locked to ensure the racks are still able to be moved to another position.

Answer: B

Explanation:
The casters and feet under the rack are used to support the weight of the rack and its equipment, and to allow the rack to be moved if needed. However, the casters and feet should also be designed to avoid putting too much pressure on the floor tile, especially if the data centre uses a raised floor system. A too heavy point load on the floor tile can cause the tile to crack, deform, or collapse, which can damage the rack, the equipment, and the underlying infrastructure. To prevent this, the casters and feet should be larger, so that they can distribute the weight over a larger area and reduce the point load. The casters and feet should also be compatible with the floor type and the load rating of the floor tile.
References:
1: CDCP Preparation Guide, page 22, section 2.4.1.1 2: Raised Floor Design Considerations for Data Center3, page 1, section 1 4: [SOLVED] server rack on casters or feet5, page 1, section 1

NEW QUESTION # 64
What should be considered when using a direct air handler for a data centre?

A. Cost of operation as power consumption on these units tend to be higher compared to traditional air conditioning technology.
B. Space available inside the computer rooms as the air handler space requirement for the inside the Computer room is quite large.
C. Temperature, humidity and contamination of the outdoor environment.
D. The availability of three-phase power due to the high power requirements of these air handler units.

Answer: C

Explanation:
Direct air handlers are a type of cooling system that use outdoor air to cool the data centre. They draw in fresh air from outside, filter it, and supply it to the data centre at the desired temperature and humidity level. Direct air handlers can reduce the energy consumption and operating costs of data centres by eliminating the need for mechanical cooling or refrigeration. However, they also have some challenges and limitations that need to be considered. One of the main factors to consider when using direct air handlers for data centres is the temperature, humidity and contamination of the outdoor environment. Depending on the location and climate of the data centre, the outdoor air may not always be suitable for cooling the data centre. For example, if the outdoor air is too hot, too humid, or too polluted, it may not provide enough cooling capacity, or it may damage the IT equipment or cause corrosion. Therefore, direct air handlers need to have sensors and controls to monitor the outdoor air quality and adjust the airflow accordingly. They may also need to have backup cooling systems or supplementary cooling devices, such as evaporative coolers or heat exchangers, to cope with extreme weather conditions or peak loads.
References: Data Center Cooling: A Comprehensive Guide - Dgtl Infra, Carrier Data Center Cooling System
39DC, Dublin Data Center: Rooftop Air Handlers.

NEW QUESTION # 65
How many monitoring points should be used in Temperature Measurement?

A. 0
B. 1
C. 2
D. 3

Answer: B

Explanation:
According to the EPI Data Centre Professional (CDCP®) Reference Materials, the recommended number of monitoring points for temperature measurement in a data centre is 3 per rack: one at the top, one at the middle, and one at the bottom1. This is to ensure that the temperature distribution within the rack is uniform and within the acceptable range for the equipment. The temperature sensors should be placed at the front of the rack, where the air enters the equipment, and not at the back, where the hot air exits1.
References: 1: EPI Data Centre Professional (CDCP®) Reference Materials, page 23.

NEW QUESTION # 66
What is the main difference between an Environmental Monitoring System (EMS) and a Building Management System (BMS)?

A. A BMS only operates as a stand-alone system. An EMS can be configured as a redundant system.
B. A BMS is only able to monitor dry contacts (on/off). An EMS can also monitor analog values.
C. An EMS provides local alarms. A BMS provides both local and remote alarms.
D. An EMS monitors only. A BMS monitors and controls.

Answer: D

Explanation:
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

NEW QUESTION # 67
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EXIN CDCP Exam Syllabus Topics:

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