- A
AWS Direct Connect
Why wrong: AWS Direct Connect is used for dedicated on-premises connectivity to AWS, not for connecting EC2 instances across regions.
- B
AWS Global Accelerator
Why wrong: AWS Global Accelerator is designed to improve performance for internet-facing applications by routing traffic over the AWS global network, but it adds unnecessary latency for direct instance-to-instance traffic within AWS.
- C
AWS Transit Gateway
Why wrong: AWS Transit Gateway can connect multiple VPCs across regions but requires transit gateway peering attachments and is more complex than VPC peering for a simple two-VPC scenario.
- D
VPC Peering
Inter-region VPC peering uses the AWS global network backbone to provide low-latency, private connectivity between EC2 instances in different regions, making it the correct choice.
Global Accelerator for Inter-Region Low Latency
This ANS-C01 practice question tests your understanding of network management and operations. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 network engineer is designing a multi-region application that requires low-latency traffic between EC2 instances in two different AWS Regions. The engineer needs to ensure that traffic between the instances uses the AWS global network and not the public internet. Which AWS service should be used?
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
VPC Peering
The correct answer is D (VPC Peering). Inter-region VPC peering connects VPCs in different regions using the AWS global network backbone, providing low-latency and private connectivity between EC2 instances. Option A (AWS Direct Connect) is used for on-premises to AWS connectivity, not between instances. Option B (AWS Global Accelerator) optimizes internet-facing traffic and adds unnecessary hops for internal traffic. Option C (AWS Transit Gateway) supports inter-region transit but requires additional configuration and is not the simplest solution for direct instance-to-instance connectivity.
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 Direct Connect
Why it's wrong here
AWS Direct Connect is used for dedicated on-premises connectivity to AWS, not for connecting EC2 instances across regions.
- ✗
AWS Global Accelerator
Why it's wrong here
AWS Global Accelerator is designed to improve performance for internet-facing applications by routing traffic over the AWS global network, but it adds unnecessary latency for direct instance-to-instance traffic within AWS.
- ✗
AWS Transit Gateway
Why it's wrong here
AWS Transit Gateway can connect multiple VPCs across regions but requires transit gateway peering attachments and is more complex than VPC peering for a simple two-VPC scenario.
- ✓
VPC Peering
Why this is correct
Inter-region VPC peering uses the AWS global network backbone to provide low-latency, private connectivity between EC2 instances in different regions, making it the correct choice.
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.
Trap categories for this question
Scenario analysis trap
AWS Transit Gateway can connect multiple VPCs across regions but requires transit gateway peering attachments and is more complex than VPC peering for a simple two-VPC scenario.
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.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: VPC Peering — The correct answer is D (VPC Peering). Inter-region VPC peering connects VPCs in different regions using the AWS global network backbone, providing low-latency and private connectivity between EC2 instances. Option A (AWS Direct Connect) is used for on-premises to AWS connectivity, not between instances. Option B (AWS Global Accelerator) optimizes internet-facing traffic and adds unnecessary hops for internal traffic. Option C (AWS Transit Gateway) supports inter-region transit but requires additional configuration and is not the simplest solution for direct instance-to-instance connectivity.
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.
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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.
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