- A
Amazon CloudFront with multiple origins.
Why wrong: CloudFront is a CDN, not a global traffic router for ALBs.
- B
AWS Network Load Balancer with cross-zone load balancing.
Why wrong: NLB operates within a single region and does not route across regions.
- C
Amazon Route 53 with latency routing policy.
Route 53 latency routing routes traffic based on the lowest latency between the client and the endpoint.
- D
AWS Global Accelerator.
Why wrong: Global Accelerator uses Anycast and directs traffic to the nearest edge location, but not specifically latency-based routing to ALBs.
Question 480 of 1,705
Route 53 Latency Routing for Multi-Region ALB Traffic Distribution
This ANS-C01 practice question tests your understanding of network implementation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 has deployed an application across multiple AWS Regions using Application Load Balancers (ALBs). The company wants to route traffic to the nearest healthy endpoint using latency-based routing. Which AWS service should be used to distribute traffic across the ALBs?
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
✓
Amazon Route 53 with latency routing policy.
Amazon Route 53 with a latency routing policy is the correct choice because it directs traffic to the ALB endpoint that provides the lowest latency for the end user, based on measured round-trip times between the user and each AWS Region. This aligns with the requirement to route traffic to the nearest healthy endpoint using latency-based routing, as Route 53 evaluates health checks on the ALBs and only considers healthy endpoints when determining the lowest latency.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon CloudFront with multiple origins.
Why it's wrong here
CloudFront is a CDN, not a global traffic router for ALBs.
- ✗
AWS Network Load Balancer with cross-zone load balancing.
Why it's wrong here
NLB operates within a single region and does not route across regions.
- ✓
Amazon Route 53 with latency routing policy.
Why this is correct
Route 53 latency routing routes traffic based on the lowest latency between the client and the endpoint.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Global Accelerator.
Why it's wrong here
Global Accelerator uses Anycast and directs traffic to the nearest edge location, but not specifically latency-based routing to ALBs.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS Global Accelerator's Anycast-based performance routing with latency-based routing, but Global Accelerator uses static IPs and the AWS backbone for geographic proximity, not real-time user-to-endpoint latency measurements like Route 53 latency policy.
Detailed technical explanation
How to think about this question
Route 53 latency routing policy works by maintaining a latency database that maps each user's DNS resolver to the measured latency for each endpoint (e.g., ALB in us-east-1 vs. eu-west-1). When a DNS query arrives, Route 53 returns the IP of the healthy endpoint with the lowest latency for that resolver, and the response is cached by the resolver for the TTL (default 60 seconds). This approach is effective for global applications but can be affected by DNS caching, so a short TTL is critical for dynamic traffic shifting during failover events.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Implementation — This question tests Network Implementation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Route 53 with latency routing policy. — Amazon Route 53 with a latency routing policy is the correct choice because it directs traffic to the ALB endpoint that provides the lowest latency for the end user, based on measured round-trip times between the user and each AWS Region. This aligns with the requirement to route traffic to the nearest healthy endpoint using latency-based routing, as Route 53 evaluates health checks on the ALBs and only considers healthy endpoints when determining the lowest latency.
What should I do if I get this ANS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services 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 ANS-C01 exam.
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