PAS-C01 Migration Practice Question
A company is migrating a 10 TB SQL Server database to Amazon RDS for SQL Server using AWS DMS. The migration is taking longer than expected. Which TWO actions can improve the migration speed? (Choose two.)
⚠ Common exam trap
Test-takers frequently think full LOB mode or disabling transaction logs speeds up migration, but these actions either add overhead or break DMS's ability to capture changes, while the correct answers focus on parallelism and resource scaling.
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
✓
Enable parallel loading by splitting tables into multiple tasks
Splitting tables into multiple DMS tasks enables parallel loading, which significantly reduces migration time by processing multiple tables concurrently. Option D is correct because increasing the DMS replication instance size provides more CPU and memory resources, allowing the instance to handle larger data volumes and higher throughput more efficiently.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a single DMS task with full LOB mode
Why it's wrong here
Full LOB mode can slow down migration; limited parallelism.
- ✓
Enable parallel loading by splitting tables into multiple tasks
Why this is correct
Parallel tasks utilize more resources and speed up data transfer.
- ✗
Use S3 multipart upload for the data
Why it's wrong here
DMS does not use S3 internally for data transfer.
- ✓
Increase the DMS replication instance size
Why this is correct
Larger instance provides more network, CPU, and memory throughput.
- ✗
Disable transaction logging on the source
Why it's wrong here
Disabling logging would compromise data integrity and CDC.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-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 PAS-C01 exam.