DEA-C01 Data Security and Governance Practice Question
This DEA-C01 practice question tests your understanding of data security and governance. 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 data engineer is designing a data pipeline that processes sensitive financial data. The data must be encrypted at rest and in transit. The pipeline uses Amazon Kinesis Data Streams to ingest data and AWS Lambda to process it. Which combination of actions ensures the data is encrypted in transit? (Select TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable TLS for Kinesis Data Streams.
Option A is correct because enabling TLS for Kinesis Data Streams encrypts data in transit between producers and the stream. Option D is correct because enabling Encryption in Transit for Lambda's VPC configuration ensures TLS is used for Lambda's network connections. Option B is wrong because SSE-S3 encrypts data at rest in S3. Option C is wrong because SSE-KMS encrypts data at rest in Kinesis. Option E is wrong because CloudWatch Logs encryption is at rest.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Enable TLS for Kinesis Data Streams.
Why this is correct
TLS encrypts data in transit between producers and Kinesis.
Related concept
Static NAT maps one inside address to one outside address.
✓
Enable Encryption in Transit for the Lambda function's VPC configuration.
Why this is correct
This ensures Lambda uses TLS for network connections.
Related concept
Static NAT maps one inside address to one outside address.
✗
Enable Server-Side Encryption (SSE-S3) on the S3 bucket used for data storage.
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DEA-C01 NAT questions on configuration and troubleshooting.
Data Security and Governance — This question tests Data Security and Governance — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Enable TLS for Kinesis Data Streams. — Option A is correct because enabling TLS for Kinesis Data Streams encrypts data in transit between producers and the stream. Option D is correct because enabling Encryption in Transit for Lambda's VPC configuration ensures TLS is used for Lambda's network connections. Option B is wrong because SSE-S3 encrypts data at rest in S3. Option C is wrong because SSE-KMS encrypts data at rest in Kinesis. Option E is wrong because CloudWatch Logs encryption is at rest.
What should I do if I get this DEA-C01 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DEA-C01 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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