- A
Use Amazon DynamoDB Streams to capture the order.
Why wrong: DynamoDB Streams are for DynamoDB, not Kinesis.
- B
Use AWS Lambda as the consumer and set the batch size to 1.
Why wrong: Batch size 1 ensures one record at a time, but multiple Lambda shard consumers can still cause ordering issues if not managed.
- C
Ensure that one consumer processes each shard exclusively.
Exclusive processing per shard ensures ordering within that shard.
- D
Use the Kinesis Client Library (KCL) with multiple workers in the same consumer group.
Why wrong: Multiple workers might process the same shard, breaking ordering.
Question 1,436 of 1,616
Maintaining Record Order in Kinesis Shards
This DVA-C02 practice question tests your understanding of development with aws services. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 developer is building a data processing pipeline that uses Amazon Kinesis Data Streams. The developer wants to ensure that records are processed in order within each shard. The consumer application runs on Amazon EC2 instances in an Auto Scaling group. What should the developer do to maintain ordering?
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
✓
Ensure that one consumer processes each shard exclusively.
Option C is correct because maintaining record order within a Kinesis shard requires that only one consumer processes records from that shard at a time. If multiple consumers read from the same shard, they may process records concurrently, breaking the sequence. By ensuring exclusive processing per shard, the developer guarantees that records are handled in the exact order they were produced.
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 Amazon DynamoDB Streams to capture the order.
Why it's wrong here
DynamoDB Streams are for DynamoDB, not Kinesis.
- ✗
Use AWS Lambda as the consumer and set the batch size to 1.
Why it's wrong here
Batch size 1 ensures one record at a time, but multiple Lambda shard consumers can still cause ordering issues if not managed.
- ✓
Ensure that one consumer processes each shard exclusively.
Why this is correct
Exclusive processing per shard ensures ordering within that shard.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use the Kinesis Client Library (KCL) with multiple workers in the same consumer group.
Why it's wrong here
Multiple workers might process the same shard, breaking ordering.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse parallelism with ordering, assuming that reducing batch size (Option B) or using multiple workers (Option D) preserves order, when in fact only exclusive shard processing guarantees sequence.
Detailed technical explanation
How to think about this question
Under the hood, Kinesis Data Streams guarantees ordering within a shard only when records are processed sequentially by a single consumer. The KCL uses a lease-based system where each shard is assigned to one worker via DynamoDB-backed leases; if multiple workers attempt to process the same shard, they must coordinate to avoid concurrent processing. In real-world scenarios, this matters for event sourcing or log aggregation where sequence is critical, such as financial transactions or state machine updates.
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.
TExam Day Tips
- 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
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FAQ
Questions learners often ask
What does this DVA-C02 question test?
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Ensure that one consumer processes each shard exclusively. — Option C is correct because maintaining record order within a Kinesis shard requires that only one consumer processes records from that shard at a time. If multiple consumers read from the same shard, they may process records concurrently, breaking the sequence. By ensuring exclusive processing per shard, the developer guarantees that records are handled in the exact order they were produced.
What should I do if I get this DVA-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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