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CV0-004 Practice Question: Migrating its on-premises application to a public…
A company is migrating its on-premises application to a public cloud. The application requires low-latency access to a legacy database that cannot be moved to the cloud. The cloud deployment must use a hybrid architecture. Which network connectivity solution should the cloud architect recommend to minimize latency and provide secure, reliable communication?
⚠ Common exam trap
CompTIA often tests the misconception that a site-to-site VPN is sufficient for low-latency hybrid connectivity, but the trap here is that VPNs over the internet cannot guarantee consistent latency or bandwidth, whereas a dedicated private connection provides a Service Level Agreement (SLA) for performance and reliability.
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
✓
Use a dedicated private connection via a cloud provider's direct connect service.
A dedicated private connection via a cloud provider's direct connect service (e.g., AWS Direct Connect, Azure ExpressRoute, or Google Cloud Interconnect) establishes a private, physical link between the on-premises data center and the cloud VPC. This bypasses the public internet entirely, providing consistent low-latency performance, higher bandwidth, and a more reliable connection for hybrid architectures where the legacy database remains on-premises.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use a dedicated private connection via a cloud provider's direct connect service.
Why this is correct
Dedicated connections offer consistent performance and security.
- ✗
Route traffic through the public internet with encryption.
Why it's wrong here
Public internet is not suitable for low-latency, reliable hybrid connections.
- ✗
Deploy a CloudFront distribution to cache database queries.
Why it's wrong here
CloudFront does not provide a network connection; it is for content caching.
- ✗
Establish a site-to-site VPN over the internet.
Why it's wrong here
VPNs can introduce jitter and latency, and are less reliable than dedicated connections.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 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 CV0-004 exam.