- A
Use a random partition key to distribute the load evenly.
Why wrong: Random keys would scatter records, losing per-symbol ordering.
- B
Increase the number of shards to reduce latency.
Why wrong: More shards can break ordering because different shards are processed independently.
- C
Use the stock symbol as the partition key when putting records into the stream.
Partition key determines shard assignment; same symbol goes to same shard, preserving order.
- D
Use AWS Lambda with DynamoDB Streams instead of Kinesis Data Analytics.
Why wrong: DynamoDB Streams is for database changes, not for streaming ingestion with ordering.
- E
Configure the Kinesis Client Library (KCL) to process records in the order they arrive in each shard.
KCL preserves record order within a shard.
Quick Answer
The correct answer is to use the stock symbol as the partition key and configure the Kinesis Client Library (KCL) to process records in the order they arrive in each shard. This works because the partition key determines which shard a record goes to; by using the stock symbol, all trades for the same symbol are routed to the same shard, where Kinesis inherently preserves the order of records within that shard. The KCL then reads records from each shard in the exact sequence they were received, ensuring strict ordering per symbol. On the AWS Certified Data Engineer Associate DEA-C01 exam, this tests your understanding of how Kinesis record ordering relies on the partition key to group related data into a single shard, and the common trap is assuming that increasing shards or using a random partition key will maintain order—both break the grouping. A useful memory tip: “Same key, same shard, same order” reminds you that the partition key is the anchor for ordering, and the KCL is the tool that respects that sequence.
DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. 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 financial services company is ingesting real-time stock trade data into Amazon Kinesis Data Streams. The data is then processed by a Kinesis Data Analytics application for fraud detection. The company must ensure that the data is processed in the correct order for each stock symbol. Which TWO configuration steps should be taken? (Choose two.)
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 the stock symbol as the partition key when putting records into the stream.
A is correct because using a partition key of stock symbol ensures records with the same symbol go to the same shard, preserving order. D is correct because enabling the Kinesis Client Library (KCL) with sequence number ordering ensures records are processed in order within a shard. B is wrong because increasing shards does not guarantee ordering. C is wrong because using a random partition key would distribute records across shards, breaking order. E is wrong because DynamoDB Streams is for CDC, not for streaming order.
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.
- ✗
Use a random partition key to distribute the load evenly.
Why it's wrong here
Random keys would scatter records, losing per-symbol ordering.
- ✗
Increase the number of shards to reduce latency.
Why it's wrong here
More shards can break ordering because different shards are processed independently.
- ✓
Use the stock symbol as the partition key when putting records into the stream.
Why this is correct
Partition key determines shard assignment; same symbol goes to same shard, preserving order.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS Lambda with DynamoDB Streams instead of Kinesis Data Analytics.
Why it's wrong here
DynamoDB Streams is for database changes, not for streaming ingestion with ordering.
- ✓
Configure the Kinesis Client Library (KCL) to process records in the order they arrive in each shard.
Why this is correct
KCL preserves record order within a shard.
Related concept
Read the scenario before looking for a memorised answer.
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
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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: Use the stock symbol as the partition key when putting records into the stream. — A is correct because using a partition key of stock symbol ensures records with the same symbol go to the same shard, preserving order. D is correct because enabling the Kinesis Client Library (KCL) with sequence number ordering ensures records are processed in order within a shard. B is wrong because increasing shards does not guarantee ordering. C is wrong because using a random partition key would distribute records across shards, breaking order. E is wrong because DynamoDB Streams is for CDC, not for streaming order.
What should I do if I get this DEA-C01 question wrong?
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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.
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