Quick Answer
The answer is Route 53 latency routing, CloudWatch alarms, and AWS Lambda. Route 53 latency routing directs users to the AWS region with the lowest network latency, while CloudWatch monitors the health of the Application Load Balancers and Auto Scaling groups; when an alarm triggers due to regional unhealth, Lambda automatically updates the Route 53 DNS records to failover traffic to a healthy region. On the ANS-C01 exam, this combination tests your understanding of integrating DNS-based routing with event-driven automation for global resilience—a common trap is choosing Global Accelerator, which uses anycast and does not support Route 53 latency-based policies, or CloudFront, which is for content delivery rather than active regional failover. Remember the mnemonic “LCL” for Latency, CloudWatch, Lambda to recall the three services working together for global latency routing and regional failover.
This ANS-C01 practice question tests your understanding of network management and operations. 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 a global application deployed across multiple AWS regions. The application uses Application Load Balancers (ALBs) and Auto Scaling groups. The network team wants to route traffic to the nearest region based on latency, and also wants to failover to another region if the primary region becomes unhealthy. Which THREE services should be used together to achieve this? (Choose THREE.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Amazon CloudFront with origin failover
Why wrong: Not for regional routing.
Amazon Route 53 latency-based routing
Routes based on latency.
Amazon CloudWatch alarms to detect regional health
Triggers failover.
AWS Lambda to update Route 53 records on failover
Automates DNS change.
AWS Global Accelerator
Why wrong: Uses anycast, not Route 53.
Answer choices
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 latency-based routing
Options A, B, and D are correct. Route 53 latency routing routes to the region with lowest latency, CloudWatch alarms can monitor health, and Lambda can automate DNS changes for failover. C is wrong because Global Accelerator uses anycast and does not use Route 53 latency routing. E is wrong because CloudFront is for content delivery, not regional failover.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon CloudFront with origin failover
Why it's wrong here
Not for regional routing.
Amazon Route 53 latency-based routing
Why this is correct
Routes based on latency.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Amazon CloudWatch alarms to detect regional health
Why this is correct
Triggers failover.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
AWS Lambda to update Route 53 records on failover
Why this is correct
Automates DNS change.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
AWS Global Accelerator
Why it's wrong here
Uses anycast, not Route 53.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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 Management and Operations — study guide chapter
Learn the concepts, then practise the questions
Network Management and Operations practice questions
Targeted practice on this topic area only
All ANS-C01 questions
1,705 questions across all exam domains
AWS Certified Advanced Networking Specialty ANS-C01 study guide
Full concept coverage aligned to exam objectives
ANS-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise ANS-C01 questions linked to Network Management and Operations.
Practise ANS-C01 questions linked to Network Security, Compliance and Governance.
Practise ANS-C01 questions linked to Network Design.
Practise ANS-C01 questions linked to Network Implementation.
Practise ANS-C01 questions linked to ANS-C01 fundamentals.
Practise ANS-C01 questions linked to ANS-C01 scenario.
Practise ANS-C01 questions linked to ANS-C01 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon Route 53 latency-based routing — Options A, B, and D are correct. Route 53 latency routing routes to the region with lowest latency, CloudWatch alarms can monitor health, and Lambda can automate DNS changes for failover. C is wrong because Global Accelerator uses anycast and does not use Route 53 latency routing. E is wrong because CloudFront is for content delivery, not regional failover.
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.
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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 →
Same concept, more angles
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 has a global application deployed across multiple AWS Regions. Users are routed to the nearest Region using Amazon Route 53. The application uses an Application Load Balancer in each Region. The network team wants to ensure that traffic is always routed to a healthy Region in case of a Regional failure. Which Route 53 routing policy should be used?
hardWhy A: Option D is correct because Latency-based routing with health checks can route to the region with the lowest latency and fail over if health checks fail. Option A is wrong because Simple routing does not support health checks. Option B is wrong because Weighted routing distributes traffic based on weights, not latency. Option C is wrong because Failover routing is primary/backup, not latency-based.
Last reviewed: Jun 20, 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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.