DBS-C01 Monitoring and Troubleshooting Practice Question
A company is using Amazon DynamoDB with global tables. The application is experiencing high write latency in one region. Which THREE factors could contribute to this issue? (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
✓
Replication lag from global tables causing write conflicts.
Replication lag in global tables can lead to write conflicts and increased latency. Option C is correct because high network latency between the application and the DynamoDB endpoint directly impacts write latency. Option E is correct because insufficient write capacity units provisioned can cause throttling, resulting in higher write latency. Option B is incorrect because read capacity units do not affect write throughput. Option D is incorrect because aggressive auto scaling increases capacity, which would reduce latency, not increase it.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Replication lag from global tables causing write conflicts.
Why this is correct
Global tables replicate asynchronously, and conflicts can increase latency.
- ✗
Insufficient read capacity units provisioned for the table.
Why it's wrong here
Read capacity does not affect write latency.
- ✓
High network latency between the application and the DynamoDB endpoint.
Why this is correct
Network latency directly impacts write latency.
- ✗
The table's auto scaling configuration is set to increase write capacity too aggressively.
Why it's wrong here
Auto scaling adds capacity, not latency.
- ✓
Insufficient write capacity units provisioned for the table.
Why this is correct
Throttling increases latency.
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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.