- A
Configure Auto Scaling for read and write capacity
Ensures availability under load.
- B
Enable DynamoDB Accelerator (DAX)
Why wrong: Improves performance, not durability/availability.
- C
Encrypt data at rest using AWS KMS
Why wrong: Security, not durability/availability.
- D
Enable point-in-time recovery (PITR)
Protects against accidental writes.
- E
Use DynamoDB Global Tables
Provides multi-region durability and availability.
Question 1,008 of 1,730
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and migration. 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 company is deploying a new application using Amazon DynamoDB. They need to ensure data durability and availability. Which THREE steps should they take? (Choose three.)
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
✓
Configure Auto Scaling for read and write capacity
Option A is correct because DynamoDB Auto Scaling automatically adjusts provisioned read/write capacity based on actual traffic patterns, preventing throttling while controlling costs. This directly supports availability by ensuring the table can handle demand spikes without manual intervention.
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.
- ✓
Configure Auto Scaling for read and write capacity
Why this is correct
Ensures availability under load.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable DynamoDB Accelerator (DAX)
Why it's wrong here
Improves performance, not durability/availability.
- ✗
Encrypt data at rest using AWS KMS
Why it's wrong here
Security, not durability/availability.
- ✓
Enable point-in-time recovery (PITR)
Why this is correct
Protects against accidental writes.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Use DynamoDB Global Tables
Why this is correct
Provides multi-region durability and availability.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing performance-enhancing features (DAX, encryption) with durability and availability mechanisms, leading candidates to select options that improve speed or security instead of data persistence and regional resilience.
Detailed technical explanation
How to think about this question
Point-in-time recovery (PITR) continuously backs up DynamoDB table data to the last 35 days with second-level granularity, enabling restoration to any point within that window. Global Tables replicate data across multiple AWS Regions using DynamoDB Streams, providing multi-Region availability and disaster recovery with eventual consistency. Auto Scaling uses CloudWatch metrics (ConsumedWriteCapacityUnits, ConsumedReadCapacityUnits) to adjust capacity via Application Auto Scaling, preventing ProvisionedThroughputExceededException errors.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Deployment and Migration — This question tests Deployment and Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure Auto Scaling for read and write capacity — Option A is correct because DynamoDB Auto Scaling automatically adjusts provisioned read/write capacity based on actual traffic patterns, preventing throttling while controlling costs. This directly supports availability by ensuring the table can handle demand spikes without manual intervention.
What should I do if I get this DBS-C01 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.
About these practice questions
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Last reviewed: Jul 4, 2026
This DBS-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 DBS-C01 exam.
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