DBS-C01 Monitoring and Troubleshooting Practice Question
A company is migrating an on-premises SQL Server database to Amazon RDS for SQL Server. During the migration, the DBA notices that the network latency between the source and target is high. Which THREE actions can the DBA take to reduce the impact of network latency on migration performance?
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 multiple parallel tasks in AWS DMS
Options B, C, and D are correct. Using multiple parallel tasks in AWS DMS (option B) improves throughput by transferring data in parallel. Using AWS Direct Connect (option C) provides a dedicated, low-latency network connection. Enabling data compression (option D) reduces the amount of data transferred, mitigating latency impact. Option A is incorrect because increasing the RDS instance size does not reduce network latency; it only affects database processing capacity. Option E is incorrect because using a VPN can add overhead and may not reduce latency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase the size of the RDS instance
Why it's wrong here
Instance size affects compute and storage, not network latency.
- ✓
Use multiple parallel tasks in AWS DMS
Why this is correct
Parallel tasks improve throughput, mitigating latency effects.
- ✓
Use AWS Direct Connect for a dedicated network connection
Why this is correct
Direct Connect provides consistent, low-latency connectivity.
- ✓
Enable data compression for the migration task
Why this is correct
Compression reduces data volume, lessening latency impact.
- ✗
Use AWS Site-to-Site VPN
Why it's wrong here
VPN may add overhead and not reduce latency.
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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.