This PAS-C01 practice question tests your understanding of 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 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.)
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
Option B is correct because 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.
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.
✗
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.
Related concept
Read the scenario before looking for a memorised answer.
✗
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.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable transaction logging on the source
Why it's wrong here
Disabling logging would compromise data integrity and CDC.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may 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.
Detailed technical explanation
How to think about this question
DMS parallel loading works by creating separate tasks for different tables, each running in its own thread, which maximizes throughput on multi-core replication instances. Increasing the replication instance size also increases the network bandwidth and I/O capacity, directly addressing bottlenecks in data transfer. In real-world scenarios, a 10 TB database often has large tables that benefit from partitioning or splitting into multiple tasks to avoid single-threaded bottlenecks.
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.
TExam Day Tips
→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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Migration — This question tests Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable parallel loading by splitting tables into multiple tasks — Option B is correct because 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.
What should I do if I get this PAS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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