ANS-C01 Network Design Practice Question
A company wants to allow their employees to securely access resources in a VPC from their home offices. Which AWS service should they use?
⚠ Common exam trap
AWS often tests the distinction between user-based VPN (Client VPN) and network-based VPN (Site-to-Site VPN), where candidates mistakenly choose Site-to-Site VPN for remote employees because they overlook the requirement for individual client software and user authentication.
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 Client VPN
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.
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 Client VPN
Why this is correct
Client VPN provides secure remote access for individual users.
- ✗
AWS Direct Connect
Why it's wrong here
Direct Connect is for dedicated network connections.
- ✗
AWS Site-to-Site VPN
Why it's wrong here
Site-to-Site VPN connects entire networks, not individual users.
- ✗
Amazon CloudFront
Why it's wrong here
CloudFront is a content delivery network.
Quick reference
VPN Protocol Comparison
| Protocol | Port | Encryption | Authentication | Use Case |
|---|---|---|---|---|
| IKEv2 / IPsec | UDP 500 / 4500 | AES-256 | Certificates / PSK | Site-to-site & remote access |
| SSL / TLS VPN | TCP 443 | TLS 1.3 | Certificates / MFA | Clientless remote access |
| L2TP / IPsec | UDP 1701 | AES (IPsec) | PSK / Certificates | Legacy remote access |
| WireGuard | UDP 51820 | ChaCha20 | Public keys | Modern high-performance VPN |
| PPTP | TCP 1723 | MPPE (weak) | MS-CHAPv2 | Legacy — avoid in production |
PPTP is considered insecure. IKEv2/IPsec and SSL VPN are the current recommended options.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.