- A
Use AWS PrivateLink to connect the application to the database
Why wrong: PrivateLink is for accessing services via endpoint, not for encrypting traffic within a VPC.
- B
Enable SAP HANA TLS/SSL encryption for the database connections
TLS/SSL encryption secures data in transit between SAP application and database servers.
- C
Use VPC peering between the application and database subnets
Why wrong: VPC peering does not encrypt data in transit.
- D
Set up a VPN connection between the application and database servers
Why wrong: VPN adds complexity and performance overhead; TLS is more efficient.
Question 1,545 of 1,733
How to Encrypt SAP HANA Traffic in Transit on AWS
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 is planning to run SAP applications on AWS. The security team requires that all data transmitted between the SAP application servers and the SAP HANA database be encrypted in transit. The SAP HANA database is on an EC2 instance in the same VPC. The application servers are also in the same VPC. Which configuration should the company implement to meet the encryption requirement with minimal impact on performance?
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 SAP HANA TLS/SSL encryption for the database connections
Option B is correct because enabling SAP HANA TLS/SSL encryption encrypts data in transit between application and database servers directly, with minimal performance impact as it is built into the SAP HANA client-server protocol. Option A is incorrect: AWS PrivateLink is used for private connectivity to services across VPCs or to AWS services, not for encrypting internal traffic within the same VPC, and introduces unnecessary complexity. Option C is incorrect: VPC peering connects separate VPCs but does not encrypt traffic by default; it also is not needed when both servers are in the same VPC. Option D is incorrect: a VPN connection adds network overhead and is designed for connectivity across networks or the internet, which is unnecessary and suboptimal for same-VPC communication.
Key principle: Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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 AWS PrivateLink to connect the application to the database
Why it's wrong here
PrivateLink is for accessing services via endpoint, not for encrypting traffic within a VPC.
- ✓
Enable SAP HANA TLS/SSL encryption for the database connections
- ✗
Use VPC peering between the application and database subnets
Why it's wrong here
VPC peering does not encrypt data in transit.
- ✗
Set up a VPN connection between the application and database servers
Common exam traps
Common exam trap: usable hosts are not the same as total addresses
Subnetting questions often tempt you into counting all addresses. In normal IPv4 subnets, the network and broadcast addresses are not usable host addresses.
Detailed technical explanation
How to think about this question
Subnetting questions test whether you can identify the network, broadcast address, usable range, mask and correct subnet. Slow down enough to calculate the block size correctly.
KKey Concepts to Remember
- CIDR notation defines the prefix length.
- Block size helps identify subnet boundaries.
- Network and broadcast addresses are not usable hosts in normal IPv4 subnets.
- The required host count determines the smallest suitable subnet.
TExam Day Tips
- Write the block size before choosing the subnet.
- Check whether the question asks for hosts, subnets or a specific address range.
- Do not confuse /24, /25, /26 and /27 host counts.
Key takeaway
Count usable hosts — not total addresses — and remember that the network and broadcast addresses are not available to hosts in standard IPv4 subnets.
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.
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.
What to study next
Got this wrong? Here's your next step.
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PAS-C01 subnetting questions on CIDR, address ranges, and subnet selection.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — CIDR notation defines the prefix length..
What is the correct answer to this question?
The correct answer is: Enable SAP HANA TLS/SSL encryption for the database connections — Option B is correct because enabling SAP HANA TLS/SSL encryption encrypts data in transit between application and database servers directly, with minimal performance impact as it is built into the SAP HANA client-server protocol. Option A is incorrect: AWS PrivateLink is used for private connectivity to services across VPCs or to AWS services, not for encrypting internal traffic within the same VPC, and introduces unnecessary complexity. Option C is incorrect: VPC peering connects separate VPCs but does not encrypt traffic by default; it also is not needed when both servers are in the same VPC. Option D is incorrect: a VPN connection adds network overhead and is designed for connectivity across networks or the internet, which is unnecessary and suboptimal for same-VPC communication.
What should I do if I get this PAS-C01 question wrong?
Review block sizes, usable host formulas (2^n − 2), and how to find network and broadcast addresses for /24 through /30. Then practise related PAS-C01 subnetting questions on CIDR, address ranges, and subnet selection.
What is the key concept behind this question?
CIDR notation defines the prefix length.
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Last reviewed: Jun 20, 2026
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