The correct answer is to perform a full backup, then transaction log backups, and restore the full backup with the last log backup. This approach minimizes downtime during SQL Server migration to RDS because transaction log backups capture all changes since the last full backup, allowing you to restore to a specific point in time and recover only the transactions that occurred during the final backup window. On the AWS Certified Database Specialty DBS-C01 exam, this tests your understanding of backup chains and recovery models—specifically, that a full backup alone (Option A) forces a longer restore window and risks data loss, while differential backups (Option B) still require a full base and cannot match the granularity of log backups. A common trap is assuming transaction log backups can stand alone (Option D), but they are worthless without a full backup to restore onto. Memory tip: think “Full then Log” as the “FLAG” for minimal downtime—Full backup sets the base, Log backups catch every change, and you restore the last log to stop the clock.
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and migration. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 1 TB SQL Server database to Amazon RDS for SQL Server using backup and restore. The database has high transaction volume. Which backup type should be used to minimize downtime?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Perform a full backup, then transaction log backups, and restore the full backup with the last log backup.
Option C is correct because a full backup followed by transaction log backups allows restoring to a point in time, minimizing data loss and downtime. Option A is wrong because only full backup requires longer downtime during restore and may lose transactions. Option B is wrong because differential backup alone is not sufficient; you need a full backup chain. Option D is wrong because transaction log backup alone cannot restore without a full backup.
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.
✓
Perform a full backup, then transaction log backups, and restore the full backup with the last log backup.
Why this is correct
Allows point-in-time recovery, minimizing data loss.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Perform only transaction log backups and restore them to RDS.
Why it's wrong here
Cannot restore without a full backup.
✗
Perform a differential backup and restore it to RDS.
Why it's wrong here
Requires a prior full backup; still loses transactions.
✗
Perform a full backup and restore it to RDS.
Why it's wrong here
Requires downtime and loses transactions after backup.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Deployment and Migration — This question tests Deployment and Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Perform a full backup, then transaction log backups, and restore the full backup with the last log backup. — Option C is correct because a full backup followed by transaction log backups allows restoring to a point in time, minimizing data loss and downtime. Option A is wrong because only full backup requires longer downtime during restore and may lose transactions. Option B is wrong because differential backup alone is not sufficient; you need a full backup chain. Option D is wrong because transaction log backup alone cannot restore without a full backup.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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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