Free Preparation Discussions
MENU
Exin CDCS Exam Questions
- Topic 1: Data Centre Life Cycle and Standards: This section of the exam measures the skills of data center professionals and covers the various stages involved in the life cycle of a data center, from planning and design to implementation and decommissioning.
- Topic 2: Designing and Implementing a Data Centre: In this module, the exam assesses the knowledge of Exin data center professionals tasked with the design and implementation of data centers. Candidates will learn the key principles of creating an efficient data center layout, including considerations for scalability, redundancy, and security.
- Topic 3: Data Centre Environmental Considerations and Efficiency: This section evaluates the proficiency of data center professionals in addressing environmental factors and promoting efficiency within data center operations. The target audience, including data center managers and engineers, will be tested on their ability to identify and implement measures that enhance energy efficiency, cooling management, and sustainable practices.
Free Exin CDCS Exam Actual Questions
Note: Premium Questions for CDCS were last updated On Sep. 27, 2026 (see below)
Given: A = attenuation in dB, R = real measured value, M = maximum acceptable value. Which formula should be used to calculate the required attenuation factor of EMF shielding material?
Attenuation is the logarithmic ratio between input and output signals. For power, we use 10 log; for voltage or current, 20 log. Since EMF shielding is measured as field strength (V/m or A/m), power relationship is proportional to the square of field. Thus the correct attenuation calculation for shielding effectiveness is:
where:
M = maximum permissible field strength
R = measured field strength after shielding
This ensures the shield reduces field intensity to below allowable limits.
The building requires sprinklers and is equipped with a wet-pipe system. What action should you recommend for the computer room?
NFPA 75 (IT equipment rooms) recommends pre-action sprinklers for data processing spaces to minimize accidental water discharge risk; wet-pipe is generally discouraged directly over IT hardware.
===========
A sprinkler system employs automatic sprinklers attached to a piping system containing water and connected to a water supply so that water discharges immediately when a head opens. What is this called?
In a wet pipe system, the piping is always filled with water under pressure. When a sprinkler head is triggered by heat, water is discharged immediately. This is the most common sprinkler system for general buildings.
Dry pipe: Pipes contain air or nitrogen; water enters only after valve activation.
Deluge: Pipes are empty, and all heads open simultaneously, releasing water everywhere.
Pre-action: Pipes are dry until detection and valve activation; reduces accidental discharge risk, recommended for IT rooms.
Since the definition describes immediate discharge from water-filled pipes, this is a wet pipe system.
What is the main reason to install Earth Leakage protection?
Earth Leakage Protection is primarily installed to protect human lives by detecting and disconnecting power when a fault current flows to the ground. This type of protection is essential to avoid electrical shock hazards that could occur when insulation fails, or equipment is improperly grounded.
Detailed Explanation:
Earth leakage currents can occur due to insulation faults or accidental contact with live parts. Earth Leakage Protection systems, such as Residual Current Devices (RCDs), quickly detect these faults and disconnect the circuit to prevent harm to personnel. This is especially crucial in environments like data centers where high-powered equipment is continuously running and any electrical fault can pose significant safety risks.
EPI Data Center Specialist Reference:
EPI emphasizes that human safety is paramount in data center operations. Proper grounding and leakage protection are fundamental safety measures, and EPI guidelines align with this focus, underscoring the importance of protecting personnel from electrical hazards through appropriate safety systems.
The temperature in the computer room is increased from 18 C (64 F) to 27 C (81 F). What is the impact on the amount of gas required to suppress a fire assuming a halocarbon agent?
Design concentrations for halocarbons (e.g., FM-200/HFC-227ea, Novec 1230) increase with ambient temperature; higher temperature higher minimum extinguishing concentration more agent mass.
===========
- Select Question Types you want
- Set your Desired Pass Percentage
- Allocate Time (Hours : Minutes)
- Create Multiple Practice tests with Limited Questions
- Customer Support
Richard Young
6 days agoStephanie Sanchez
24 days agoJames Clark
9 days agoThomas Anderson
1 month agoEmily Edwards
2 months agoBetty Martin
2 months agoSteven Moore
3 months agoMaria Anderson
3 months agoJeffrey Lopez
4 months agoLinda Martinez
4 months agoLinda Sanchez
5 months agoSteven Brown
5 months agoKevin Morgan
5 months agoLisa Wright
5 months agoEdward Scott
5 months agoStephen Rodriguez
5 months agoHarold Smith
4 months agoCatarina
6 months agoBea
6 months agoMoon
6 months agoDylan
7 months agoOmega
7 months agoCarma
7 months agoAleshia
7 months agoKate
8 months agoKarrie
8 months agoCrista
8 months agoMakeda
8 months agoShaun
9 months agoAhmed
9 months agoScot
9 months agoElke
9 months agoRosendo
10 months agoBambi
10 months agoRosendo
10 months agoDustin
10 months agoApolonia
11 months agoDenae
11 months agoDick
11 months agoMargart
11 months agoRory
12 months agoLouann
12 months agoProvidencia
1 year agoFausto
1 year agoOlive
1 year agoVicente
1 year agoShantay
1 year agoAvery
1 year agoEmmanuel
1 year agoEssie
1 year agoJosue
1 year agoMicheline
1 year agoHelga
1 year agoWinifred
1 year agoPaz
1 year agoKattie
1 year agoBillye
1 year agoChandra
1 year agoEvan
2 years agoCherelle
2 years agoQuentin
2 years agoLeota
2 years agoArlene
2 years agoMaryrose
2 years agoDanica
2 years agoJarod
2 years agoRessie
2 years agoSylvia
2 years agoJessenia
2 years agoKaty
2 years agoGiovanna
2 years agoArdella
2 years agoSalley
2 years agoDana
2 years agoXuan
2 years agoLeana
2 years agoLon
2 years agoTamesha
2 years agoLenna
2 years agoGerald
2 years agoIsabelle
2 years agoLizbeth
2 years agoJade
2 years agoBok
2 years ago