DBS-C01 Deployment and Migration Practice Question
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?
⚠ Common exam trap
Many candidates confuse DynamoDB Accelerator (DAX) as a solution for global low-latency reads and writes, overlooking that DAX is single-region and does not replicate data, while global tables are purpose-built for multi-region active-active scenarios.
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 DynamoDB global tables with replicate streams.
DynamoDB global tables provide a fully managed, multi-region, multi-master solution that automatically replicates data across selected AWS Regions, enabling low-latency reads and writes globally. By enabling DynamoDB Streams on the table, global tables use the streams to capture item-level changes and replicate them to other regions, ensuring eventual consistency and high availability for global applications.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable DynamoDB Accelerator (DAX) in each region.
Why it's wrong here
DAX is a caching layer, not a replication mechanism; it does not synchronize data across regions.
- ✗
Use DynamoDB Accelerator (DAX) with cross-region replication.
Why it's wrong here
DAX does not support cross-region replication; it's a cache within a region.
- ✓
Use DynamoDB global tables with replicate streams.
Why this is correct
Global tables automatically replicate data across regions for low latency access.
- ✗
Create a single table in the primary region and use Amazon CloudFront for reads.
Why it's wrong here
CloudFront cannot front DynamoDB; it's for static content.
Go deeper
Related to this question
About these practice questions
This DBS-C01 question is part of Courseiva's 1,663-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.