DBS-C01 Database Security Practice Question
A company wants to enforce encryption in transit for all connections to their ElastiCache for Redis cluster. Which security measure should they implement?
⚠ Common exam trap
Watch out — candidates often confuse the 'require_secure_transport' parameter from RDS with ElastiCache, or assume that encryption in transit can be enabled after cluster creation via a parameter group change, when in fact it is a one-time setting at launch.
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 Encryption in-transit when creating the cluster.
ElastiCache for Redis enforces encryption in transit by enabling the feature at cluster creation time. This uses TLS to encrypt data moving between clients and the Redis nodes, ensuring that all connections are secured against eavesdropping or man-in-the-middle attacks. The setting cannot be changed after the cluster is provisioned, so it must be enabled during the initial setup.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set a parameter group with 'require_secure_transport' to ON.
Why it's wrong here
This parameter is for RDS MySQL, not ElastiCache.
- ✓
Enable Encryption in-transit when creating the cluster.
Why this is correct
This enforces TLS for all connections.
- ✗
Use VPC Flow Logs to monitor connections.
Why it's wrong here
Flow logs monitor traffic, not enforce encryption.
- ✗
Enable encryption at rest using KMS.
Why it's wrong here
Encryption at rest is separate from encryption in transit.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-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 DBS-C01 exam.