- A
AWS Direct Connect
Correct. AWS Direct Connect establishes a dedicated, private network link between an on-premises data center and AWS, offering consistent bandwidth and lower latency by avoiding the public internet.
- B
AWS Site-to-Site VPN
Why wrong: Incorrect. AWS Site-to-Site VPN creates a secured connection over the public internet. While encrypted, it does not provide the dedicated, low-latency performance a Direct Connect link offers, and performance can vary with internet conditions.
- C
AWS Client VPN
Why wrong: Incorrect. AWS Client VPN is a managed remote access VPN service for individual users to connect to AWS or on-premises networks. It is not designed for site-to-site data center connections and uses the public internet.
- D
AWS Transit Gateway
Why wrong: Incorrect. AWS Transit Gateway is a network transit hub that simplifies connecting multiple VPCs and on-premises networks, but it does not itself provide the physical connectivity. It works with Direct Connect or VPN attachments to route traffic.
Quick Answer
The answer is AWS Direct Connect. This service is the correct choice because it establishes a dedicated private network connection from an on-premises data center directly to AWS, completely bypassing the public internet. By using a physical cross-connect or a hosted virtual interface, it eliminates the variability and congestion of internet-based traffic, ensuring consistent, low-latency performance for latency-sensitive applications. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of network connectivity options and the trade-off between public internet (VPN) and private dedicated links. A common trap is confusing AWS Direct Connect with a Site-to-Site VPN—remember that VPNs still traverse the public internet, while Direct Connect is a private, physical link. For a quick memory tip, think "Direct Connect = Direct, Dedicated, and Disconnected from the internet."
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. 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 runs a latency-sensitive application on AWS that must communicate with an on-premises data center. The company requires a dedicated, private network connection that provides consistent, low-latency performance and bypasses the public internet. Which AWS service should the company use to meet these requirements?
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 Direct Connect
AWS Direct Connect is the correct choice because it provides a dedicated, private network connection from an on-premises data center to AWS, bypassing the public internet entirely. This ensures consistent, low-latency performance for latency-sensitive applications by using a physical cross-connect or hosted virtual interface, which avoids the variability and potential congestion of internet-based connections.
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 this is correct
Correct. AWS Direct Connect establishes a dedicated, private network link between an on-premises data center and AWS, offering consistent bandwidth and lower latency by avoiding the public internet.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Site-to-Site VPN
Why it's wrong here
Incorrect. AWS Site-to-Site VPN creates a secured connection over the public internet. While encrypted, it does not provide the dedicated, low-latency performance a Direct Connect link offers, and performance can vary with internet conditions.
- ✗
AWS Client VPN
Why it's wrong here
Incorrect. AWS Client VPN is a managed remote access VPN service for individual users to connect to AWS or on-premises networks. It is not designed for site-to-site data center connections and uses the public internet.
- ✗
AWS Transit Gateway
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse AWS Site-to-Site VPN (which also provides a private tunnel) with a dedicated connection, overlooking that VPNs still traverse the public internet and cannot guarantee consistent low latency, whereas Direct Connect offers a physically private path.
Detailed technical explanation
How to think about this question
AWS Direct Connect operates over a dedicated fiber-optic cable using 802.1Q VLANs to segregate traffic, supporting speeds from 50 Mbps to 100 Gbps via 10GBASE-LR or 100GBASE-LR4 optics. It uses BGP (Border Gateway Protocol) for dynamic routing, allowing for private virtual interfaces (VIFs) to access VPCs or public VIFs for AWS public services, with latency typically under 5 ms for same-region connections. In real-world scenarios, financial trading platforms rely on Direct Connect to achieve sub-millisecond latency between colocation facilities and AWS, which is impossible with VPNs due to internet jitter.
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 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 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 CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Direct Connect — AWS Direct Connect is the correct choice because it provides a dedicated, private network connection from an on-premises data center to AWS, bypassing the public internet entirely. This ensures consistent, low-latency performance for latency-sensitive applications by using a physical cross-connect or hosted virtual interface, which avoids the variability and potential congestion of internet-based connections.
What should I do if I get this CLF-C02 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.
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 →
Last reviewed: Jun 11, 2026
This CLF-C02 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 CLF-C02 exam.
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