- A
AWS Direct Connect
Why wrong: Direct Connect is for on-premises to AWS.
- B
Internet Gateway
Why wrong: Internet Gateway is for internet access.
- C
VPC peering
VPC peering supports inter-region connections.
- D
AWS Transit Gateway
Why wrong: Transit Gateway does not support inter-region peering directly.
Question 702 of 1,705
ANS-C01 Network Implementation Practice Question
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 wants to securely connect two VPCs in different AWS regions using AWS infrastructure. Which 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
VPC peering is the correct service because it allows direct, private connectivity between two VPCs in different AWS regions using AWS's internal network, without traversing the public internet. It uses the existing AWS infrastructure to route traffic between the VPCs via private IP addresses, and it supports inter-region peering as of 2017, making it the simplest and most cost-effective solution for this specific requirement.
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
Direct Connect is for on-premises to AWS.
- ✗
Internet Gateway
Why it's wrong here
Internet Gateway is for internet access.
- ✓
VPC peering
Why this is correct
VPC peering supports inter-region connections.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Transit Gateway
Why it's wrong here
Transit Gateway does not support inter-region peering directly.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose AWS Transit Gateway because they think it is required for inter-region connectivity, but they overlook that VPC peering directly supports cross-region connections and is the simpler, more cost-effective option for a two-VPC scenario.
Detailed technical explanation
How to think about this question
VPC peering uses the AWS global network backbone to route traffic between VPCs, leveraging the same infrastructure that supports AWS services like EC2 and S3. Under the hood, it creates a layer-3 routing table entry in each VPC's route table, pointing to the peered VPC's CIDR block via a peering connection ID, and traffic is encapsulated using AWS's internal networking protocols. A real-world scenario is connecting a production VPC in us-east-1 with a disaster recovery VPC in eu-west-1, where VPC peering provides low-latency, private communication without needing a VPN or dedicated line.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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: VPC peering — VPC peering is the correct service because it allows direct, private connectivity between two VPCs in different AWS regions using AWS's internal network, without traversing the public internet. It uses the existing AWS infrastructure to route traffic between the VPCs via private IP addresses, and it supports inter-region peering as of 2017, making it the simplest and most cost-effective solution for this specific requirement.
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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