Question 1,680 of 1,660
SAP-C02 Design for New Solutions Practice Question
A company is designing a new application that will process sensitive financial data. The data must be encrypted at rest and in transit. The application runs on EC2 instances. Which combination of services meets these requirements?
⚠ Common exam trap
The trap here is that candidates often pick options that address only one requirement (e.g., only encryption at rest or only encryption in transit) or confuse storage services (S3) with compute services (EC2), failing to realize both encryption states must be covered for the EC2-based application.
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 EBS encryption on the volumes and configure the application to use TLS for all network traffic.
It addresses both encryption requirements: EBS encryption ensures data at rest is encrypted using AWS KMS-managed keys, and configuring the application to use TLS encrypts data in transit between clients and the EC2 instances. This combination directly meets the stated security needs without relying on external services like S3 or ACM for the EC2-hosted application.
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 Amazon S3 with server-side encryption and enforce HTTPS.
Why it's wrong here
S3 is not for EC2 instance storage; EBS volumes need encryption.
- ✗
Use AWS Key Management Service (KMS) to generate keys and enable encryption on EBS volumes.
Why it's wrong here
KMS is a key management service, but the instance still needs to use TLS for in-transit encryption.
- ✗
Use AWS Certificate Manager (ACM) to issue TLS certificates and configure the application to use HTTPS.
Why it's wrong here
ACM provides certificates for in-transit encryption, but at-rest encryption is missing.
- ✓
Enable EBS encryption on the volumes and configure the application to use TLS for all network traffic.
Why this is correct
EBS encryption provides at-rest encryption; TLS provides in-transit encryption.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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Last reviewed: Jul 4, 2026
This SAP-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 SAP-C02 exam.
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