CV0-004 Latency Routing Practice Question
A company runs a production application on multiple cloud regions for high availability. They want to minimize latency for global users. Which DNS routing policy should they use?
⚠ Common exam trap
Candidates often confuse geolocation routing with latency routing. Geolocation routes based on predetermined geographic boundaries, while latency routing uses real-time performance measurements to find the fastest region.
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
✓
Latency routing
Latency routing policy directs traffic to the AWS region that provides the lowest latency for the user based on real-time network measurements. This minimizes latency for global users by routing to the region that responds fastest, which is the requirement in this scenario. Geolocation routing routes based solely on the user's geographic location, which may not always correspond to lowest latency if the nearest region is congested or the user is far from a region in their assigned location.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Latency routing
Why this is correct
Correct. Latency routing measures end-user latency to each region and routes to the region with the lowest latency, thus minimizing latency for global users.
- ✗
Failover routing
Why it's wrong here
Incorrect. Failover routing is used to route traffic to a backup site when the primary site fails. It does not minimize latency.
- ✗
Geolocation routing
Why it's wrong here
Incorrect. Geolocation routing routes based on the user's geographic location (e.g., continent, country). It may not always direct to the lowest-latency region if the user's location does not have a nearby region, or if the nearest region has higher latency due to network conditions.
- ✗
Simple routing
Why it's wrong here
Incorrect. Simple routing is the default policy that routes all traffic to a single resource. It does not consider latency or geography.
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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.