The answer is a combination of Route 53 latency-based routing, health checks, and weighted records. Latency-based routing automatically directs traffic to the region with the lowest response time, while health checks continuously monitor each ALB endpoint to detect failures and remove unhealthy regions from rotation. Weighted records then allow you to shift traffic gradually for planned maintenance by adjusting the relative weights of the DNS records. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this scenario tests your ability to distinguish between routing policies—many candidates mistakenly choose failover routing, but that only supports active-passive setups, not the active-active, latency-optimized design required here. A common trap is assuming Geo proximity is needed, but latency routing already handles performance-based selection without geographic constraints. Memory tip: think “LHW” for Latency, Health checks, and Weighted records—the three pillars of controlled, resilient multi-region failover.
ANS-C01 Network Design Practice Question
This ANS-C01 practice question tests your understanding of network design. 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 is designing a network architecture for a critical application that must be highly available across AWS Regions. The application uses an Application Load Balancer (ALB) in each Region, and the company wants to use a global DNS name that automatically routes traffic to the healthy Region with the lowest latency. The company also needs to be able to perform planned failover for maintenance. Which THREE components are required to meet these requirements?
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 weighted routing policy for each ALB endpoint
Route 53 latency-based routing sends traffic to the Region with lowest latency. Health checks detect Region failures. Weighted records allow shifting traffic for maintenance. Option A is correct because latency routing is needed. Option B is correct because health checks enable failover. Option D is correct because weighted records allow manual traffic shifting. Option C is not required because failover routing is not used. Option E is not required because Geo proximity is not needed.
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 Route 53 geolocation routing policy
Why it's wrong here
Geolocation is for location-based routing, not latency.
✗
Amazon Route 53 failover routing policy
Why it's wrong here
Failover routing is for primary/secondary, not latency-based.
✓
Amazon Route 53 weighted routing policy for each ALB endpoint
Why this is correct
Weighted records allow manual traffic shifting for maintenance.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon Route 53 latency-based routing policy
Why this is correct
Latency routing sends traffic to the lowest-latency healthy Region.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon Route 53 health checks for each ALB endpoint
Why this is correct
Health checks automatically remove unhealthy Regions.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Network Design — This question tests Network Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Route 53 weighted routing policy for each ALB endpoint — Route 53 latency-based routing sends traffic to the Region with lowest latency. Health checks detect Region failures. Weighted records allow shifting traffic for maintenance. Option A is correct because latency routing is needed. Option B is correct because health checks enable failover. Option D is correct because weighted records allow manual traffic shifting. Option C is not required because failover routing is not used. Option E is not required because Geo proximity is not needed.
What should I do if I get this ANS-C01 question wrong?
Identify which ANS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is designing a network architecture for a critical application that requires high availability across multiple AWS regions. The application uses an Application Load Balancer (ALB) in each region. Which TWO services can provide global routing and failover between the two ALBs?
medium
✓ A.Amazon Route 53 with failover routing and health checks
B.AWS WAF
C.Network Load Balancer (NLB)
D.Amazon CloudFront
✓ E.AWS Global Accelerator
Why A: Options A and D are correct. Amazon Route 53 with health checks can route DNS queries to healthy endpoints across regions. AWS Global Accelerator provides anycast IPs and can route traffic to healthy regional endpoints. Option B is wrong because CloudFront is a CDN and does not route to ALBs directly for failover. Option C is wrong because a Network Load Balancer is regional. Option E is wrong because AWS WAF is a web application firewall.
Last reviewed: Jun 20, 2026
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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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