Quick Answer
The answer is AWS Client VPN, as it is the only service designed to provide secure, user-level access to internal applications hosted in a VPC without traversing the public internet. AWS Client VPN establishes a TLS-based VPN tunnel from the employee’s device directly into the VPC, and it integrates with directory services like Active Directory or SAML-based identity providers to enforce authentication and authorization policies at the individual user level, rather than at the network level. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this question tests your ability to differentiate between remote user access and site-to-site connectivity—a common trap is confusing AWS Client VPN with AWS Site-to-Site VPN, which connects entire networks, not individual users. Remember that Direct Connect is a dedicated physical link for hybrid networks, and a bastion host only provides interactive shell access without native policy enforcement. A useful memory tip: think of Client VPN as “per-user VPN” for remote workers, while Site-to-Site VPN is “per-network VPN” for branch offices.
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 wants to allow its employees to securely access internal applications hosted in a VPC without traversing the internet. The company also wants to be able to enforce security policies at the user level. Which AWS service should the company use?
Bastion host in a public subnet
Why wrong: Bastion host does not enforce user-level policies.
AWS Direct Connect
Why wrong: Direct Connect is a dedicated physical connection.
AWS Site-to-Site VPN
Why wrong: Site-to-Site VPN is for network-to-network connectivity.
AWS Client VPN
Client VPN provides per-user secure access to VPC.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Client VPN
Option C is correct because AWS Client VPN provides secure access to VPC resources with user-level authentication and authorization. Option A is incorrect because AWS Site-to-Site VPN is for site-to-site connectivity, not individual users. Option B is incorrect because Direct Connect is dedicated network connection, not for remote users. Option D is incorrect because a bastion host requires SSH/RDP and does not enforce user-level policies natively.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Bastion host in a public subnet
Why it's wrong here
Bastion host does not enforce user-level policies.
AWS Direct Connect
Why it's wrong here
Direct Connect is a dedicated physical connection.
AWS Site-to-Site VPN
Why it's wrong here
Site-to-Site VPN is for network-to-network connectivity.
AWS Client VPN
Why this is correct
Client VPN provides per-user secure access to VPC.
Related concept
Authentication checks who the user is.
Common exam traps
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Detailed technical explanation
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related ANS-C01 questions on access control and AAA configuration.
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FAQ
Network Design — This question tests Network Design — Authentication checks who the user is..
The correct answer is: AWS Client VPN — Option C is correct because AWS Client VPN provides secure access to VPC resources with user-level authentication and authorization. Option A is incorrect because AWS Site-to-Site VPN is for site-to-site connectivity, not individual users. Option B is incorrect because Direct Connect is dedicated network connection, not for remote users. Option D is incorrect because a bastion host requires SSH/RDP and does not enforce user-level policies natively.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related ANS-C01 questions on access control and AAA configuration.
Authentication checks who the user is.
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Same concept, more angles
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Variation 1. A company wants to allow their employees to securely access resources in a VPC from their home offices. Which AWS service should they use?
easyWhy A: AWS Client VPN is a managed, cloud-based VPN service that allows individual users to securely access AWS resources from remote locations, such as home offices, using a VPN client installed on their device. It supports OpenVPN-based connections and integrates with Active Directory for user authentication, making it ideal for remote employee access to a VPC without requiring dedicated hardware or complex site-to-site configurations.
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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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