Question 1,654 of 1,705
Network DesignmediumMultiple SelectObjective-mapped

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 multi-region active-active application. They need to ensure that traffic is routed to the closest healthy region and that failover happens automatically. Which TWO services should be used together to achieve this?

Question 1mediummulti select
Review the full routing breakdown →

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

AWS Global Accelerator with endpoint groups

AWS Global Accelerator (C) uses Anycast IPs to direct traffic to the closest healthy endpoint group, automatically rerouting traffic if a region becomes unhealthy. This provides fast regional failover and low-latency routing without DNS caching delays, making it ideal for active-active multi-region applications.

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.

  • AWS Transit Gateway with inter-region peering

    Why it's wrong here

    For VPC connectivity, not user traffic routing.

  • Amazon CloudFront with multiple origins

    Why it's wrong here

    Not for dynamic application routing.

  • AWS Global Accelerator with endpoint groups

    Why this is correct

    Provides anycast IPs and health checks.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Amazon Route 53 with latency-based routing

    Why this is correct

    Routes based on latency.

    Related concept

    Read the scenario before looking for a memorised answer.

  • AWS Direct Connect with multiple locations

    Why it's wrong here

    Not for traffic routing across regions.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often think Route 53 latency-based routing (D) alone is sufficient for automatic failover, but it relies on DNS caching and TTLs, which can delay failover by minutes, whereas Global Accelerator provides sub-second failover and is the recommended service for active-active multi-region traffic steering.

Detailed technical explanation

How to think about this question

Global Accelerator uses the AWS global network backbone and Anycast static IPs to route traffic to the optimal endpoint group based on latency, health, and proximity. Under the hood, it leverages BGP Anycast announcements to direct traffic to the nearest edge location, then uses internal routing to the chosen endpoint group, with health checks performed every 10 seconds (configurable) to trigger automatic failover. In a real-world scenario, if a region becomes degraded, Global Accelerator can shift traffic to another region within seconds, avoiding the DNS TTL propagation delays that affect Route 53 latency-based routing.

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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this ANS-C01 question test?

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: AWS Global Accelerator with endpoint groups — AWS Global Accelerator (C) uses Anycast IPs to direct traffic to the closest healthy endpoint group, automatically rerouting traffic if a region becomes unhealthy. This provides fast regional failover and low-latency routing without DNS caching delays, making it ideal for active-active multi-region applications.

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: Jun 24, 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.