This PK0-005 practice question tests your understanding of basics of it infrastructure and it project management. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is migrating to a new ERP system. The project manager needs to ensure minimal downtime during cutover. Which deployment strategy should be recommended?
Big bang
Why wrong: Big bang replaces the entire system at once, risking significant downtime if issues arise.
Pilot
Why wrong: Pilot is a trial for a limited user group, not a deployment strategy for the entire migration.
Parallel
Parallel operation runs both systems concurrently, allowing immediate switchback and minimal downtime.
Phased
Why wrong: Phased migration involves incremental cutovers, each potentially causing some downtime.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Parallel
The parallel deployment strategy is recommended because it allows the old and new ERP systems to run concurrently during cutover, enabling users to validate the new system while maintaining operations on the legacy system. This minimizes downtime by providing a fallback option if issues arise, ensuring business continuity during the migration.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Big bang
Why it's wrong here
Big bang replaces the entire system at once, risking significant downtime if issues arise.
Pilot
Why it's wrong here
Pilot is a trial for a limited user group, not a deployment strategy for the entire migration.
Parallel
Why this is correct
Parallel operation runs both systems concurrently, allowing immediate switchback and minimal downtime.
Related concept
Read the scenario before looking for a memorised answer.
Phased
Why it's wrong here
Phased migration involves incremental cutovers, each potentially causing some downtime.
Common exam traps
The trap here is that candidates often confuse 'phased' with 'parallel,' assuming that rolling out in stages inherently minimizes downtime, but parallel deployment uniquely allows both systems to run simultaneously to eliminate cutover downtime entirely.
Detailed technical explanation
In a parallel deployment, both the legacy and new ERP systems process the same transactions simultaneously, often using middleware or data synchronization tools to keep databases consistent. This approach requires careful data mapping and reconciliation to avoid duplication or corruption, and it typically demands double the infrastructure resources during the transition period. Real-world scenarios, such as migrating SAP ECC to S/4HANA, often use parallel runs for financial modules to ensure data integrity before decommissioning the old system.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the PK0-005 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Basics of IT Infrastructure and IT Project Management — This question tests Basics of IT Infrastructure and IT Project Management — Read the scenario before looking for a memorised answer..
The correct answer is: Parallel — The parallel deployment strategy is recommended because it allows the old and new ERP systems to run concurrently during cutover, enabling users to validate the new system while maintaining operations on the legacy system. This minimizes downtime by providing a fallback option if issues arise, ensuring business continuity during the migration.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This PK0-005 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PK0-005 exam.
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