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2026 Statistics

Key Facts: CDMS Exam

40

Questions

EXIN Official Specification

60 min

Time Limit

EXIN Official Specification

67.5%

Passing Score (27/40)

EXIN Official Specification

€350 / $420

Exam Fee

EXIN / EPI Pricing

4 Equal Domains

Initiation, Discovery, Strategy, Cutover (25% each)

EPI CDMS Blueprint

3 Years

Validity Period

EPI Certification Rules

The EXIN EPI Certified Data Centre Migration Specialist exam features 40 multiple-choice questions in 60 minutes with a 67.5% passing score (27/40). Core domains cover Migration Initiation & Assessment (25%), Discovery & Scoping (25%), Strategy & Risk Management (25%), and Execution & Cutover (25%).

Sample CDMS Practice Questions

Try these sample questions to test your CDMS exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the primary objective of creating a formal Project Charter during the initiation phase of a data centre migration project?
A.To authorize the migration project and grant the project manager authority to commit organizational resources
B.To detail the hour-by-hour cutover sequence for the final migration weekend
C.To catalog all IP addresses and VLAN assignments across source and target data centres
D.To decommission legacy physical servers and wipe storage media
Explanation: A formal Project Charter serves to formally initiate the project, align executive stakeholders on goals and constraints, and grant the project manager explicit authority to commit enterprise resources. Detailed technical tasks like cutover runbooks, IP mapping, and physical decommissioning occur in later project phases.
2When constructing the financial business case for a data centre consolidation project, which cost factor is frequently overlooked during the transition period?
A.Dual-run operating costs for simultaneously running source and target data centres
B.The initial purchase price of target data centre rack cabinets
C.Ongoing utility billing for the target data centre post-migration
D.Annual software renewal maintenance fees for core applications
Explanation: Dual-run costs—paying for power, cooling, space, network cross-connects, and support contracts at both source and target locations concurrently during the build and migration phase—are a major cost driver that is often underestimated. Rack purchases and ongoing target utility bills are standard capital and operational costs.
3Which key stakeholder role is primarily responsible for approving application downtime windows and validating business functionality post-migration?
A.Application Owner (Business Owner)
B.Facilities Electrical Engineer
C.Network Cabling Technician
D.Data Centre Security Manager
Explanation: Application Owners (Business Owners) represent the business units that rely on IT services. They are accountable for defining acceptable outage windows, approving maintenance schedules, and executing User Acceptance Testing (UAT) post-migration. Facilities engineers and network technicians support infrastructure readiness but do not own business application approvals.
4What is the primary purpose of performing a Target Site Readiness Assessment prior to finalizing migration wave schedules?
A.To ensure power, cooling, space, cabling, and network connectivity at the destination are fully commissioned and tested
B.To verify that all source servers have been powered down and packaged in anti-static crates
C.To purge expired user accounts from Active Directory before data replication begins
D.To execute final data sanitization on legacy storage arrays
Explanation: A Target Site Readiness Assessment verifies that the target facility infrastructure (power distribution, cooling capacity, rack space, WAN bandwidth, structural loading, and security) is fully installed, commissioned, and capable of supporting incoming workloads. Source server shutdown and media sanitization occur during cutover and decommissioning phases.
5In the context of data centre migration planning, how does an Operational Level Agreement (OLA) differ from a Service Level Agreement (SLA)?
A.An OLA defines operational commitments between internal IT functional groups, whereas an SLA defines performance commitments to external business customers
B.An OLA is legally binding in commercial court, whereas an SLA is an informal internal document
C.An OLA dictates physical server hardware dimensions, whereas an SLA specifies power distribution topology
D.An OLA only applies to cloud migrations, whereas an SLA only applies to physical migrations
Explanation: SLAs specify service delivery and availability metrics agreed upon between IT and business stakeholders/customers. OLAs are internal agreements between different IT teams (e.g., Network, Storage, Database, Facilities) defining operational support responsibilities required to uphold SLAs.
6During the initiation phase, why must the project team review existing vendor maintenance agreements for equipment scheduled to be physically relocated?
A.To ensure physical transport does not void hardware warranty or vendor support coverage
B.To calculate the exact heat output in BTUs of each relocated chassis
C.To automatically renew software licenses upon arrival at the destination
D.To reconfigure network IP routing protocols during transit
Explanation: Many hardware manufacturers (e.g., storage arrays, mainframes, enterprise servers) require specialized, certified logistics providers for physical relocation to keep warranty and hardware support contracts intact. Relocating equipment without vendor notification or using unauthorized movers can void maintenance policies.
7Which regulatory requirement is of paramount importance when planning the cross-border physical or digital transfer of personal citizen data?
A.Data sovereignty and legal jurisdictional regulations (e.g., GDPR)
B.ANSI/TIA-942 cabling distance limits
C.ASHRAE TC 9.9 recommended temperature ranges
D.IEEE 802.3 Ethernet framing standards
Explanation: Cross-border data migrations must comply with national and international data privacy laws (such as GDPR in Europe) governing data sovereignty, cross-border transfers, and citizen privacy. TIA-942, ASHRAE, and IEEE standards address technical cabling, environmental, and networking rules.
8What is the most effective governance mechanism to control scope creep during a data centre migration project?
A.Establishing a formal Change Control Board (CCB) with mandatory impact assessments for requested additions
B.Allowing individual application owners to add new servers directly during cutover weekends
C.Freezing all software updates permanently across the entire enterprise
D.Conducting daily physical inspections of the target data centre white space
Explanation: A formal Change Control Board (CCB) evaluates proposed scope changes (e.g., adding legacy systems, changing wave dates, upgrading OS versions mid-migration) for risk, cost, and schedule impact before approval. Allowing ad-hoc additions during cutover introduces severe risk and delay.
9Which organizational structure represents the central governing body responsible for overseeing migration scope, budget, risks, and executive escalation?
A.Project Steering Committee
B.Field Logistics Crew
C.Storage Administration Support Desk
D.Helpdesk Tier 1 Support Team
Explanation: The Project Steering Committee (comprising executive sponsors, IT leadership, business unit heads, and the lead migration director) provides strategic direction, budget authority, and resolution for high-level risks and scope decisions. Field crews and tier 1 helpdesk perform tactical execution.
10Why must structural floor load capacity be evaluated at both source and target data centres prior to heavy equipment movement?
A.To prevent structural overload or floor tile collapse during equipment transport and rack installation
B.To measure the optical attenuation of single-mode fibre patch leads
C.To optimize database indexing parameters for high-volume transactions
D.To ensure static transfer switches operate within sub-cycle transfer times
Explanation: High-density server racks, large UPS cabinets, and heavy storage arrays exert significant concentrated point loads and distributed load weight. Verifying floor loading limits (kg/m² or lbs/sq ft) and loading dock ramps ensures structural safety during transit and placement.

About the CDMS Exam

The EXIN EPI Certified Data Centre Migration Specialist certification validates an IT professional's ability to plan, scope, manage, and execute complex data centre migrations without business disruption. It covers end-to-end migration lifecycle management: initiation, business case development, automated discovery, application dependency mapping, migration strategy selection (6 Rs), risk assessment, wave planning, runbook execution, cutover management, and post-migration validation.

Questions

40 scored questions

Time Limit

60 minutes

Passing Score

67.5% (27 of 40)

Exam Fee

€350 ($420) (EXIN / EPI)

CDMS Exam Content Outline

25%

Migration Project Initiation & Assessment

Business case, stakeholder governance, site assessment, compliance, SLA/OLA mapping, and resource allocation.

25%

Application & Infrastructure Discovery & Scoping

Automated discovery, application dependency mapping, asset inventory, wave planning, and CMDB reconciliation.

25%

Migration Strategy & Risk Management

Migration options (6 Rs), swing equipment, data replication methods, RTO/RPO targets, risk matrix, and contingency plans.

25%

Execution, Cutover & Post-Migration Validation

Cutover runbooks, war room management, final sync, network/DNS redirection, validation testing, and decommissioning.

How to Pass the CDMS Exam

What You Need to Know

  • Passing score: 67.5% (27 of 40)
  • Exam length: 40 questions
  • Time limit: 60 minutes
  • Exam fee: €350 ($420)

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

CDMS Study Tips from Top Performers

1Understand the key differences between the 6 Rs of migration: Rehost (Lift and Shift), Replatform (Lift, Tinker, Shift), Refactor/Rearchitect, Repurchase, Retain, and Retire.
2Master Application Dependency Mapping (ADM) techniques, passive vs active discovery, and how dependencies dictate move-group and migration wave sequencing.
3Know the definitions and trade-offs of storage replication methods: synchronous, asynchronous, block-level continuous data protection (CDP), and seed-and-delta replication.
4Understand how RTO (Recovery Time Objective) and RPO (Recovery Point Objective) drive cutover window sizing and rollback decision triggers.
5Familiarize yourself with physical move logistics: shock/vibration monitoring, transit insurance, server rack rigging, and chain of custody tracking.
6Review cutover war room roles: Migration Lead, Cutover Master, Network Lead, Database Admin, App Owner, and Business Validation Lead.

Frequently Asked Questions

What is the format of the EXIN EPI Certified Data Centre Migration Specialist exam?

The exam consists of 40 multiple-choice questions to be completed in 60 minutes. The passing score is 67.5%, requiring at least 27 correct answers.

Who should earn the EXIN EPI Certified Data Centre Migration Specialist certification?

This certification is designed for Data Centre Managers, IT Infrastructure Managers, Project Managers, Systems Engineers, Solution Architects, and Consultants responsible for planning or executing data centre relocation, consolidation, or cloud migration projects.

Are there mandatory prerequisites for the exam?

There are no strict prerequisites, but candidates are recommended to have prior data centre knowledge (such as CDCP certification) and experience in IT infrastructure architecture, networking, or systems administration.

How does this credential differ from general cloud migration certifications?

The EXIN EPI Data Centre Migration Specialist credential focuses holistically on physical-to-physical, physical-to-virtual, virtual-to-virtual, and hybrid cloud migrations, emphasizing facilities, physical move logistics, risk management, application dependencies, and operational continuity.

How long is the certification valid?

The certification is valid for 3 years, after which recertification can be completed through EPI's recertification guidelines or advanced credentials.