[2026年03月]更新のEXIN CDFOM公式認定ガイドPDF
試験CDFOM Certified Data Center Facilities Operations Manager
質問 # 22
Management wants to receive a monthly report on data center cost breakdown per business unit without transferring the actual cost to the users.
Which model should you apply?
- A. Pay back
- B. Show back
- C. Setback
- D. Chargeback
正解：B
解説：
EPI's financial management guidance distinguishes between several internal cost transparency models.
Chargebackoccurs when costs are formally billed to internal departments or customers. However, in this scenario, management wants visibility of cost distributionwithoutmaking business units financially responsible. This aligns directly with theShow Backmodel.
Show Back is a non-billing mechanism that reports how much each business unit would hypothetically be charged if costs were allocated proportionally. It improves cost awareness, encourages responsible consumption, and helps management understand operational cost drivers without generating friction associated with real billing. Show Back is commonly used in organizations where financial culture, policy constraints, or strategic choices prevent the use of formal chargeback.
Options A (Chargeback) does not meet the requirement because it transfers costs. Options C and D are not recognized cost transparency models within EPI or general IT financial management practices.
Therefore, the most suitable model for cost transparencywithout financial transferisB - Show Back.
質問 # 23
Which is not a specific leadership quality?
- A. Funny
- B. Honesty
- C. Empathy
- D. Accountability
正解：A
解説：
Leadership qualities emphasized in EPI's data center organizational framework include:
* Accountability: taking ownership of decisions and actions.
* Empathy: understanding staff perspectives and motivating teams.
* Honesty: demonstrating integrity and trustworthiness.
These traits support effective team management, professional communication, and high-reliability operations in mission-critical environments.
"Funny"is not a leadership quality recognized in any professional leadership framework.
While being personable can help morale, humor isnota leadership competency.
Thus,Dis the correct answer.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* Leadership qualities relate to responsibility, integrity, and the ability to motivate and support teams.
* Humor is not a defined leadership competency.
質問 # 24
A co-location data center wants to reduce IT energy consumption as part of its sustainability program.
It has no direct influence over the IT usage of its customers.
What is the best approach?
- A. The data center may issue recommendations to customers regarding the optimization of storage and CPU usage
- B. In a co-location environment, the customers determine what they do with their IT, the data center service provider has no say in this
- C. The data center may decide to reduce the power delivered to each rack by 10%
- D. The data center may set limits to the volume of storage allowed for each customer
正解：A
解説：
In a co-location environment, the data center operator manages the facility infrastructure-power, cooling, space, security-but does not directly control how customers operate their IT equipment. However, sustainability programs aim to reduce total energy consumption, which includes IT loads. Since the operator cannot mandate hardware usage or impose arbitrary power reductions, the appropriate method ispromoting awareness and issuing recommendationsthat help customers optimize their systems.
These recommendations may include best practices such as consolidating workloads, improving server utilization, removing unused equipment ("zombie servers"), adopting more efficient storage architectures, using virtualization, and refreshing legacy hardware. This aligns with EPI's sustainability principles, where collaboration and customer education play a key role in reducing energy consumption in shared environments.
Option A is incorrect because, although customers control IT loads, the operatorcaninfluence them through guidance and programs. Option B is unsafe and violates contractual power allocations. Option D imposes limitations not covered by typical co-location contracts and could disrupt customer operations.
Thus,providing optimization recommendationsis the best and most realistic approach.
質問 # 25
The organization is implementing an information security management system (ISMS).
What is the common process model to follow?
- A. ROI
- B. PDCA
- C. PCI-DSS
- D. SMART
正解：B
解説：
The ISMS framework (aligned with ISO 27001) follows thePDCA cycle:
P - Plan
D - Do
C - Check
A - Act
This model ensures:
* Continuous improvement
* Systematic risk management
* Documented policies and controls
* Regular audits and corrective actions
Why other options are incorrect:
* A - SMART: For objective setting, not ISMS.
* B - PCI-DSS: A security compliance standard, not a process model.
* C - ROI: A financial metric, unrelated.
Thus,Dis correct.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* ISMS implementation is based on PDCA methodology.
* Ensures continuous improvement of security controls.
質問 # 26
What is the main objective of the security incident management process?
- A. To test emergency response plans
- B. To address security breaches and potential weaknesses
- C. To verify whether the correct individuals are assigned as security guard
- D. To comply with ISO 27001
正解：B
解説：
Security incident management is a core function in maintaining physical security integrity within the data center environment. The main purpose of this process is torespond to, manage, and eliminate security breaches and vulnerabilitiesthat could compromise facility protection, customer assets, or sensitive operational areas. According to EPI's security governance principles, a security incident may include unauthorized access attempts, misuse of credentials, badge anomalies, tailgating, tampering, suspicious activities, or procedural violations.
The security incident management process ensures that such events are logged, assessed, investigated, escalated, and resolved in a timely and structured manner. It also identifies root causes and potential systemic weaknesses that must be corrected to prevent recurrence. This includes reviewing procedures, improving physical controls, reinforcing training, and implementing corrective or preventive measures.
Option A is unrelated; guard assignment is part of staffing, not incident management. Option C refers to testing emergency plans, which is part of preparedness and exercises. Option D refers to compliance activities, but compliance is not theobjectiveof incident management-it is aresult.
Therefore, the correct answer isB - addressing breaches and weaknesses.
質問 # 27
What describes the term predictive maintenance?
- A. Just-in-time maintenance based on monitoring equipment performance
- B. Scheduled maintenance based on history of failure within the site
- C. Maintenance performed upon detection of potential issues
- D. Routine, time or count-based maintenance
正解：A
解説：
Predictive maintenance is defined as:
"Maintenance executed based on real-time or trend-based performance monitoring to intervene just before failure occurs." Predictive maintenance uses:
* Condition monitoring
* Vibration analysis
* Sensor data
* Temperature, load, and performance metrics
* Trend analysis
* Analytics predicting impending failure
This allows maintenance to be performedjust-in-time, preventing unplanned downtime.
Why other options are incorrect:
* Adescribes preventive maintenance (routine/time-based).
* Cdescribes reliability-centered or historical pattern scheduling.
* Dis close but refers more to condition-based maintenance, which is a subset; predictive maintenance specifically uses monitoring to forecast failure, not just detect issues.
Thus,Bis the most correct definition.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* Predictive maintenance relies on monitoring equipment conditions and performance trends.
* It reduces downtime and optimizes maintenance schedules.
質問 # 28
During inventory of assets it is identified that a number of items are in a different location compared to what is indicated on the inventory list.
What is the most likely root cause of this?
- A. Lack of asset management database capabilities
- B. Lack of procedures
- C. Lack of staff training
- D. Lack of finance
正解：B
解説：
Accurate asset management relies heavily onclear, enforced proceduresfor:
* Logging asset movement
* Updating location records
* Recording installations, removals, or relocations
* Maintaining accurate configuration and asset databases
If assets are located in different places than recorded, the root cause is typically:
"Lack of procedures" or failure to follow them.
Without proper procedures:
* Staff may move items without documentation.
* Asset updates may not be recorded.
* Inventory lists become outdated.
* Tracking and audit functions fail.
Why other options are incorrect:
* A: Training is important but secondary; without procedures, training has no structure.
* C: Most modern asset systems can track locations; the issue is usually process-related, not system capability.
* D: Financial constraints do not cause incorrect asset locations.
Thus,Bis correct.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* Asset management accuracy depends on well-defined and enforced procedures.
* Incorrect asset locations typically indicate process failures, not financial or system issues.
質問 # 29
The process of restoring normal service operation as quickly as possible and therefore minimizing the adverse impact on service levels committed to by the organization to its customers, is covered by?
- A. Capacity management
- B. Equipment life cycle management
- C. Change management
- D. Incident management
正解：D
解説：
Incident Management's primary objective is:
"Restore normal service as quickly as possible and minimize business impact." This aligns precisely with the scenario described.
Why other options are incorrect:
* A: Change management governs planned changes, not restoration.
* B: Capacity management ensures sufficient resources, not incident recovery.
* D: Equipment lifecycle deals with long-term asset management.
Thus,Cis correct.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* Incident management focuses on fast service restoration and minimizing impact.
* Central to service operations and SLA protection.
質問 # 30
The data center organization has all its services prepared and wishes to announce the outcome to its customers so that they can place their order.
What document - or information - will it share?
- A. Service catalog
- B. Service portfolio
- C. Business continuity plan
- D. Needs analysis report
正解：A
解説：
EPI distinguishes between:
* Service Portfolio# internal document used for service design, planning, assessment
* Service Catalog# customer-facing document listing available services
Theservice catalogprovides customers with:
* Service descriptions
* Service options
* Ordering information
* Terms and conditions
* SLA details
* Pricing models (where applicable)
It is specifically designed to allow customers to select and order services.
Why other options are incorrect:
* A: Service portfolio is internal only.
* B: BCP is unrelated to service ordering.
* C: Needs analysis is internal planning documentation.
Thus,Dis correct.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* The service catalog contains all customer-orderable services.
* It is the primary communication tool for customer consumption.
質問 # 31
Customers complain that reported incidents are responded to at first but then seem to disappear after a while with the customer no longer receiving a proper follow-up.
What is the most likely cause of this?
- A. The data center does not have adequate contingency in the resource allocations
- B. Incomplete shift hand-over
- C. The overall staff skill levels are insufficient to support the customer
- D. The service desk application is not configured to send automatic 'ticket closed' emails
正解：B
解説：
A common operational problem occurs when incidents areinitially responded to but then lose attention.
EPI identifiesincomplete shift handoveras a major root cause because:
* Incident ownership is not transferred correctly
* Pending actions are not communicated
* Operators on the next shift are unaware of unresolved incidents
* Follow-up obligations are lost
This leads to customers receiving initial responses but no closure or updates.
Why other options are incorrect:
* A: Even without auto-emails, incidents would still be followed up internally.
* B: Skill level issues affect resolution quality, not disappearance of tickets.
* D: Lack of contingency causes delays, not loss of tracking.
Thus,Cis correct.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* Proper shift handover is essential to maintain service continuity.
* Incomplete handover leads to dropped incidents and SLA failures.
質問 # 32
Failure probability of mechanical equipment components is high, and management wants to keep downtime to an absolute minimum.
Which is the best spare part option to choose?
- A. Only high-cost parts at site
- B. No parts at site
- C. Basic parts at site
- D. Full parts at site
正解：D
解説：
Having the correct spare parts strategy is critical for minimizing downtime, especially for mechanical systems such as chillers, CRAC units, pumps, AHUs, and cooling distribution systems. Within the EPI Facilities Management framework, downtime risk and spare parts strategy are tightly linked. When the probability of component failure is high, or uptime requirements are extremely stringent, the recommended approach is to maintainfull spare parts onsite. This ensures rapid replacement of any failed component without waiting for vendor delivery, logistics, or procurement delays.
Afull parts at sitestrategy means that all critical consumable and non-consumable parts-motors, sensors, belts, bearings, filters, control boards, valves, and other essential components-are immediately available.
This is the approach used in high-availability data centers targeting Tier III or Tier IV performance levels or facilities operating with strict SLA commitments.
Options A and B increase repair time because missing parts cause extended outages waiting for shipment or vendor arrival. Option D is ineffective because lower-cost parts often fail more frequently, making only high- cost inventory insufficient.
Thus, the safest, lowest-downtime option isfull parts at site.
質問 # 33
Welding works need to be conducted.
Is a Permit to Work (PTW) required and if so, what type of PTW?
- A. A PTW is required for energy work
- B. Welding is covered under standard maintenance work, a PTW is not required
- C. A PTW is required for cold work
- D. A PTW is required for hot work
正解：D
解説：
EPI's Permit to Work (PTW) system categorizes work activities based on risk levels to ensure safe execution and hazard control within the data center.
Welding operations involveopen flame, sparks, high heat, molten metal, and ignition sources, making them a high-risk activity.
In EPI safety doctrine,welding is explicitly classified under "Hot Work." Hot Work includes activities such as:
* Welding
* Cutting
* Grinding
* Brazing
* Soldering
* Flame use or spark-producing tools
Because of the fire ignition potential, aHot Work Permitis mandatory before welding can begin.
The Hot Work PTW ensures:
* Fire watch personnel are assigned
* Fire suppression systems are prepared or temporarily disabled with compensating controls
* Surrounding area is inspected for combustible material
* Correct PPE is used
* Hot-work zoning, barriers, and extinguishers are in place
* Post-work monitoring is performed
Therefore,Option D (A PTW is required for hot work)is the correct and EPI-aligned answer.
EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)
* The PTW system ensures hazardous activities are controlled.
* Welding is classified as Hot Work.
* Hot Work requires a dedicated PTW with fire-risk mitigation and supervisory approval.
質問 # 34
What is defined by the Recovery Time Objective (RTO)?
- A. The time within which the impacts of not resuming activities would become unacceptable to the organization
- B. The maximum age of the data to be restored in case of a disaster
- C. The minimum level of service required to be operational again
- D. The prioritized timeframes for resuming disrupted activities at a specified minimum acceptable capacity
正解：D
質問 # 35
What is the outcome of a risk evaluation process?
- A. The required budget treating the data center risk
- B. The decision whether risk treatment needs to take place
- C. The list of all identified risks
- D. The report advising the board of management to accept all identified risks
正解：B
解説：
In the EPI framework for risk management, after the risk identification and risk analysis steps, therisk evaluationstep determines whether the assessed risks areacceptableorrequire treatmentbased on the organization's risk appetite, criteria, and the potential impact. The evaluation leads to a decision on whether risk treatment needs to take place.
* It isnotsimply compiling all risks (so option C is incorrect).
* It isnotexclusively about budgeting (so option D is incorrect) though budgeting follows treatment decisions.
* It isnotnecessarily advising to accept all risks (so option B is incorrect) but rather it supports decision- making on treatment.
* Therefore, option A is correct: the outcome is the decision whether to treat the risk.
EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)
* Risk evaluation assesses identified and analysed risks against risk criteria to decide on acceptability or need for treatment.
* The outcome is a documented decision-making step in the risk management process.
質問 # 36
What is defined by the Recovery Time Objective (RTO)?
- A. The time within which the impacts of not resuming activities would become unacceptable to the organization
- B. The maximum age of the data to be restored in case of a disaster
- C. The minimum level of service required to be operational again
- D. The prioritized timeframes for resuming disrupted activities at a specified minimum acceptable capacity
正解：D
解説：
In organizational resilience and business continuity planning, theRecovery Time Objective (RTO)is a core metric used to determine the acceptable downtime for each business function.
EPI defines RTO as the:
"Targeted duration within which disrupted services or processes must be restored to a minimum acceptable operational level after a disaster." Key points:
* Timeframe for RecoveryThe RTO identifieshow quicklya facility, system, or service must be restored before the outage causes unacceptable consequences.
* Minimum Service CapacityThe RTO refers to restoring operationsat a minimum acceptable level, not full normal operations.
* Business Impact Analysis (BIA) OutputRTO is derived during BIA where criticality and dependencies of business processes are assessed and prioritized.
* Prioritization of ResourcesRTO informs disaster recovery planning, resource allocation, and restoration sequencing.
Therefore, the correct definition matches:
D - "The prioritized timeframes for resuming disrupted activities at a specified minimum acceptable capacity." Why the other options are incorrect:
* Adescribes the MTPD (Maximum Tolerable Period of Disruption).
* Bdescribes elements of the Minimum Business Continuity Objective (MBCO).
* Cdescribes the Recovery Point Objective (RPO).
EPI DCFOM-Aligned Reference Concepts (Paraphrased, Not Verbatim)
* RTO defines the permitted downtime for a service.
* RTO is linked to minimum acceptable capability after recovery.
* RTO is determined through BIA.
質問 # 37
Which action is most appropriate when the standard warranty does not meet the business requirements?
- A. Write-off the investment and purchase new equipment
- B. Review with the service provider and - budget permitted - discuss a service contract to extend the services beyond the standard warranty coverage
- C. Purchase additional spare parts
- D. Increase staff standby levels
正解：B
解説：
Standard warranties often provide limited support focused on parts replacement with no guaranteed response time, no preventive maintenance, and no rapid onsite intervention. When business requirements demand higher availability, faster recovery times, or enhanced repair capabilities, the standard warranty is insufficient.
EPI's facilities management principles recommend upgrading to aservice contractthat offers extended or enhanced coverage. This may include guaranteed response times, onsite labor, preventive maintenance, full system checks, expedited parts replacement, and comprehensive support that aligns with business-critical uptime requirements.
Option B is correct because it provides a structured, contractual method to bridge gaps between operational needs and manufacturer baseline support. The contract can be tailored to specific risks, SLAs, and operational priorities.
Option A (increasing staff standby) does not solve the issue of vendor response or parts availability. Option C (writing off the asset) is unnecessary and financially unreasonable. Option D (purchasing spare parts) helps but does not provide labor response, diagnostics, or SLA-backed service delivery.
Thus, the most appropriate and effective action is tonegotiate an extended service contract.
質問 # 38
To set up a framework for an effective environmental management system, which standard should be followed?
- A. ISO 5001
- B. ISO 14001
- C. LEED
- D. EU-COC
正解：B
解説：
For environmental management systems (EMS), the internationally recognized and adopted standard is:
ISO 14001 - Environmental Management Systems
ISO 14001 provides a framework for:
* Environmental policy
* Environmental impact assessment
* Sustainability objectives
* Compliance obligations
* Environmental performance monitoring
* Continuous improvement
Why the other options are incorrect:
* A - EU-COC: Energy efficiency best practices for data centers, not a full EMS.
* B - ISO 50001: Energy management standard, focusing on energy efficiency only.
* C - LEED: Building sustainability certification, not a management system.
Thus,Dis correct.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* ISO 14001 is the recognized standard for environmental management systems.
* Supports sustainability, compliance, and environmental performance improvement.
質問 # 39
The data center service provider has decided that maintenance of the data center facilities infrastructure will be outsourced.
Is it still involved in the risk management process of data center maintenance?
- A. Yes, since although risk can be shared, it cannot be transferred
- B. No, since the data center service provider is not actively involved in the actual maintenance of the data center.
- C. No, the selected maintenance service provider is responsible
- D. It depends on the knowledge and experience of the maintenance service provider
正解：A
解説：
EPI's governance and risk management principles clearly state:
* When a data center outsources maintenance,operational work can be outsourced, but risk cannot be transferred.
* Risk may beshared, mitigated, or reduced through contractual arrangements, butownership remains with the data center service provider.
* The data center operator is still responsible for ensuring compliance, operational continuity, and safety-even if another party performs the maintenance tasks.
Therefore:
* The service provider must remain involved in risk evaluation, risk treatment, and ongoing monitoring.
* Oversight responsibilities cannot be delegated.
OptionsCandDare incorrect because outsourcing the activity doesnotoutsource risk accountability.
OptionBis irrelevant because risk responsibility does not depend on provider expertise.
Thus,Ais correct.
EPI DCFOM-Aligned Reference Concepts (Paraphrased)
* Risk ownership remains with the organization even when maintenance is outsourced.
* Outsourcing shares risk but does not transfer it.
* The data center must maintain involvement in the risk management process.
質問 # 40
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