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220-1201 Practice Question: Migrating its on-premises email server to a cloud…
A company is migrating its on-premises email server to a cloud service. Employees must retain all existing emails and folders. Which cloud deployment model best fits this requirement?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Hybrid cloud
A hybrid cloud deployment combines on-premises infrastructure with public cloud services, allowing data migration while maintaining local access during the transition. This ensures existing emails can be retained and synchronized. A public-only or private-only model would not support the migration seamlessly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Public cloud
Why it's wrong here
A public cloud model involves migrating all email server data and services entirely to a third-party provider's infrastructure, such as AWS, Azure, or Google Cloud. This approach necessitates a complete data transfer, which can be complex and may not inherently support keeping local copies of the email server data operational during the transition phase. Consequently, it presents challenges for a gradual, controlled migration while ensuring continuous data availability and integrity.
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Private cloud
Why it's wrong here
A private cloud solution dedicates computing resources and services exclusively to a single organization, whether hosted on-premises or by a third party. While offering enhanced control and security, migrating to a private cloud from an existing on-premises email server still constitutes a complete shift to a new, dedicated environment. This model does not inherently facilitate a hybrid transition where some services remain local while others move to the cloud, as it typically involves a full migration to the private infrastructure.
- ✓
Hybrid cloud
Why this is correct
A hybrid cloud strategy integrates a company's on-premises infrastructure with public or private cloud services, creating a unified, interconnected environment. This approach enables organizations to strategically distribute workloads and data, allowing critical email services or historical archives to remain on-premises while new services or less sensitive data migrate to the cloud. This flexibility supports a phased, controlled migration, ensures data retention, and provides robust disaster recovery options by leveraging both environments simultaneously.
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Community cloud
Why it's wrong here
A community cloud is a collaborative cloud infrastructure shared by several organizations that have common computing concerns, such as specific security requirements, compliance regulations, or shared mission objectives. While beneficial for joint projects or industry-specific applications, this model is not designed for an individual company's general email server migration. Its shared nature and specialized focus make it unsuitable for a standalone transition of an organization's core email infrastructure.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 220-1201 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 220-1201 exam.