The answer is Amazon DynamoDB global tables, which provide multi-region writes with conflict resolution by replicating data across multiple AWS Regions using a multi-master, eventually consistent model. This solution is correct because DynamoDB global tables automatically handle concurrent writes to the same item in different regions using a “last writer wins” conflict resolution mechanism based on timestamps, ensuring high availability and low-latency writes globally. On the AWS Certified Database Specialty DBS-C01 exam, this question tests your ability to distinguish between multi-region write support and single-primary replication; a common trap is confusing Aurora Global Database, which permits writes only in one primary region, with DynamoDB’s true multi-master capability. Remember the memory tip: “Global Tables = Global Writes” — if the scenario demands simultaneous writes from multiple regions, DynamoDB global tables are the only AWS database service that natively supports it with automatic conflict resolution.
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and migration. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 globally distributed application that requires a low-latency, highly available database with multi-region write support. The application needs to handle conflicts automatically. Which AWS database solution meets these requirements?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon DynamoDB global tables
Option C is correct because Amazon DynamoDB global tables provide multi-region, multi-master replication with automatic conflict resolution. Option A is wrong because Aurora Global Database supports cross-region replication but only one primary region for writes. Option B is wrong because RDS Multi-AZ is single-region. Option D is wrong because ElastiCache is a caching layer, not a primary database.
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.
✗
Amazon Aurora Global Database
Why it's wrong here
Aurora Global Database has a single primary region for writes; not multi-master.
✗
Amazon ElastiCache for Redis global datastore
Why it's wrong here
ElastiCache is a cache, not a durable database for primary writes.
✓
Amazon DynamoDB global tables
Why this is correct
DynamoDB global tables provide multi-region, multi-master writes with automatic conflict resolution.
Related concept
Read the scenario before looking for a memorised answer.
✗
Amazon RDS Multi-AZ with cross-region read replicas
Why it's wrong here
Cross-region read replicas do not support multi-region writes.
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 DBS-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.
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: Amazon DynamoDB global tables — Option C is correct because Amazon DynamoDB global tables provide multi-region, multi-master replication with automatic conflict resolution. Option A is wrong because Aurora Global Database supports cross-region replication but only one primary region for writes. Option B is wrong because RDS Multi-AZ is single-region. Option D is wrong because ElastiCache is a caching layer, not a primary database.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is deploying a global application that requires a database with sub-millisecond read latency across multiple regions. Which AWS database service should they use?
hard
A.Amazon ElastiCache for Redis
B.Amazon Aurora Global Database
✓ C.Amazon DynamoDB Global Tables
D.Amazon RDS for MySQL with cross-region Read Replicas
Why C: Amazon DynamoDB Global Tables provide multi-region replication with sub-millisecond latency. Option C is correct. Option A (RDS with Read Replicas) has higher latency. Option B (Aurora Global Database) is good but not sub-millisecond across regions. Option D (ElastiCache) is a cache, not a primary database.
Variation 2. A company is deploying a new DynamoDB table for a global application. The table must have low latency reads and writes across multiple AWS regions. Which configuration should be used?
medium
A.Enable DynamoDB Accelerator (DAX) in each region.
B.Use DynamoDB Accelerator (DAX) with cross-region replication.
✓ C.Use DynamoDB global tables with replicate streams.
D.Create a single table in the primary region and use Amazon CloudFront for reads.
Why C: Option C is correct because DynamoDB global tables provide multi-region replication. Option A is wrong because DAX only caches in one region. Option B is wrong because a single table in one region does not provide global low latency. Option D is wrong because DynamoDB Accelerator is for in-memory caching, not replication.
Variation 3. A company is deploying a DynamoDB table for a global application that requires low-latency reads and writes in multiple AWS Regions. Which THREE features should be enabled? (Choose three.)
medium
✓ A.DynamoDB Accelerator (DAX).
✓ B.On-demand capacity mode.
C.DynamoDB Streams.
D.Time to Live (TTL).
✓ E.DynamoDB global tables.
Why A: Options A, C, and D are correct. DynamoDB global tables provide multi-region replication. DAX provides in-memory caching for low-latency reads. On-demand capacity handles traffic spikes. Option B is wrong because TTL is for data expiration, not performance. Option E is wrong because Streams are for change data capture, not low-latency access.
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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.
Question Discussion
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