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DEA-C01 Data Ingestion and Transformation Practice Question

This DEA-C01 practice question tests your understanding of data ingestion and transformation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.

Match each AWS database service to its primary use case.

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

A
Amazon RDS: Relational database for online transaction processing (OLTP) workloads.
Amazon RDS is a managed relational database service ideal for OLTP workloads such as e-commerce sites and CRM systems.
B
Amazon DynamoDB: NoSQL key-value and document database for low-latency, high-traffic applications.
DynamoDB is a fully managed NoSQL database providing single-digit millisecond latency at any scale, suitable for gaming, ad tech, and IoT.
C
Amazon Redshift: Petabyte-scale data warehouse for running complex analytical queries.
Redshift is a fast, petabyte-scale data warehouse that enables running complex analytic queries across large datasets.
D
Amazon ElastiCache: In-memory caching service for improving application performance.
ElastiCache offers managed Redis or Memcached, used for caching, session management, and real-time analytics.
E
Amazon RDS: NoSQL key-value database for low-latency applications.
Why wrong: Incorrect — Amazon RDS is a relational database, not NoSQL. This describes Amazon DynamoDB.
F
Amazon DynamoDB: Relational database for OLTP workloads.
Why wrong: Incorrect — DynamoDB is a NoSQL database, not relational. This describes Amazon RDS.

Full breakdown with real-world context →

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

✓

Amazon RDS: Relational database for online transaction processing (OLTP) workloads.

Correct matches: RDS -> OLTP relational, DynamoDB -> NoSQL low-latency, Redshift -> data warehousing, ElastiCache -> in-memory caching. Common confusions include swapping RDS and DynamoDB use cases.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
Amazon RDS: Relational database for online transaction processing (OLTP) workloads.
Why this is correct
Amazon RDS is a managed relational database service ideal for OLTP workloads such as e-commerce sites and CRM systems.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon DynamoDB: NoSQL key-value and document database for low-latency, high-traffic applications.
Why this is correct
DynamoDB is a fully managed NoSQL database providing single-digit millisecond latency at any scale, suitable for gaming, ad tech, and IoT.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon Redshift: Petabyte-scale data warehouse for running complex analytical queries.
Why this is correct
Redshift is a fast, petabyte-scale data warehouse that enables running complex analytic queries across large datasets.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✓
Amazon ElastiCache: In-memory caching service for improving application performance.
Why this is correct
ElastiCache offers managed Redis or Memcached, used for caching, session management, and real-time analytics.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Amazon RDS: NoSQL key-value database for low-latency applications.
Why it's wrong here
Incorrect — Amazon RDS is a relational database, not NoSQL. This describes Amazon DynamoDB.
✗
Amazon DynamoDB: Relational database for OLTP workloads.
Why it's wrong here
Incorrect — DynamoDB is a NoSQL database, not relational. This describes Amazon RDS.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.

TExam Day Tips

Underline the problem statement mentally.
Watch for words such as best, first, most likely and least administrative effort.
Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.

What to study next

Got this wrong? Here's your next step.

Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this DEA-C01 question test?

Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Amazon RDS: Relational database for online transaction processing (OLTP) workloads. — Correct matches: RDS -> OLTP relational, DynamoDB -> NoSQL low-latency, Redshift -> data warehousing, ElastiCache -> in-memory caching. Common confusions include swapping RDS and DynamoDB use cases.

What should I do if I get this DEA-C01 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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This DEA-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 DEA-C01 exam.