ANS-C01 Network Security, Compliance and Governance Practice Question
A company uses AWS Direct Connect to connect their on-premises network to AWS. They want to encrypt all traffic between their on-premises router and the AWS Direct Connect location. Which solution should they implement?
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
✓
Enable MACsec on the Direct Connect connection.
MACsec provides encryption at Layer 2 for Direct Connect. Option A is wrong because IPsec VPN over the internet is not over Direct Connect. Option B is wrong because TLS is for application layer. Option D is wrong because AWS PrivateLink is for VPC endpoints.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use an IPsec VPN over the internet for additional encryption.
Why it's wrong here
This bypasses Direct Connect.
- ✗
Use AWS PrivateLink to create a secure connection.
Why it's wrong here
PrivateLink is for accessing services, not link encryption.
- ✓
Enable MACsec on the Direct Connect connection.
Why this is correct
MACsec encrypts the Direct Connect link at Layer 2.
- ✗
Use TLS to encrypt the traffic at the application layer.
Why it's wrong here
TLS is not for the physical link.
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.