This DVA-C02 practice question tests your understanding of development with aws services. 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.
An application uses DynamoDB Streams to trigger downstream processing. The processor must receive both old and new item images after updates. Which stream view type should be configured?
KEYS_ONLY
Why wrong: This does not meet the stated requirement as directly as the correct option.
NEW_AND_OLD_IMAGES
Correct for the stated requirement.
NEW_IMAGE only
Why wrong: This does not meet the stated requirement as directly as the correct option.
OLD_IMAGE only
Why wrong: This does not meet the stated requirement as directly as the correct option.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
NEW_AND_OLD_IMAGES
B is correct because DynamoDB Streams must be configured with the NEW_AND_OLD_IMAGES stream view type to capture both the item's state before and after a write operation (update, insert, or delete). This ensures the downstream processor receives the complete old and new item data, which is required for use cases like auditing, change data capture, or reconciling state changes.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
KEYS_ONLY
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
NEW_AND_OLD_IMAGES
Why this is correct
Correct for the stated requirement.
Related concept
Read the scenario before looking for a memorised answer.
NEW_IMAGE only
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
OLD_IMAGE only
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
Common exam traps
The trap here is that candidates often confuse the stream view types and assume NEW_IMAGE alone is sufficient for updates, forgetting that the requirement explicitly demands both old and new images for complete state comparison.
Detailed technical explanation
DynamoDB Streams writes records in near-real-time with a 24-hour retention window, and each stream record contains a sequence number, size limit of 1 MB, and the chosen view type. Under the hood, the NEW_AND_OLD_IMAGES view type triggers a read of the item's previous state from the table's internal version store before applying the write, which adds minimal latency but ensures consistency. In a real-world scenario, a financial transaction processor might need both images to detect fraud by comparing old and new balances, where using only one image would miss critical context.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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FAQ
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
The correct answer is: NEW_AND_OLD_IMAGES — B is correct because DynamoDB Streams must be configured with the NEW_AND_OLD_IMAGES stream view type to capture both the item's state before and after a write operation (update, insert, or delete). This ensures the downstream processor receives the complete old and new item data, which is required for use cases like auditing, change data capture, or reconciling state changes.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This DVA-C02 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 DVA-C02 exam.
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