DA0-002 Data Acquisition and Preparation Practice Question
A data engineer is designing a data pipeline to ingest streaming data from IoT sensors. The sensors send data every second, and the pipeline must handle bursts of up to 10,000 messages per second. Which approach is most appropriate for capturing this data before processing?
⚠ Common exam trap
CompTIA often tests the misconception that relational databases or data warehouses can handle real-time streaming ingestion at scale, when in fact they require a buffering layer like a message queue to absorb bursts and decouple ingestion from processing.
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
✓
Use a message queue to buffer the incoming data
A message queue (e.g., Apache Kafka, Amazon Kinesis, or RabbitMQ) provides an asynchronous buffer that decouples the high-velocity ingestion (up to 10,000 messages/second) from downstream processing. This allows the pipeline to absorb burst traffic without overwhelming the processing layer, ensures data durability, and supports replayability in case of failures.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Directly write each message to a relational database
Why it's wrong here
Databases are not optimized for high-velocity writes and can become a bottleneck.
- ✗
Load directly into a data warehouse
Why it's wrong here
Data warehouses are not designed for high-frequency streaming ingestion.
- ✓
Use a message queue to buffer the incoming data
Why this is correct
A message queue handles high throughput and provides reliable buffering.
- ✗
Store data in flat files and process in nightly batches
Why it's wrong here
Batch processing introduces latency and is not suitable for real-time ingestion.
Go deeper
Related to this question
About these practice questions
Courseiva writes every DA0-002 question from scratch — 986 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA 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 DA0-002 exam.