The correct answer is to configure a new long-term retention policy that retains monthly backups for 7 years. This directly reduces long-term backup retention costs by eliminating the storage of unnecessary weekly and daily backups beyond the compliance window, while still meeting the 7-year requirement for monthly backups. On the DP-300 exam, this scenario tests your understanding of Azure SQL Managed Instance backup policies, specifically that long-term retention (LTR) policies can be granularly adjusted to balance cost and compliance, whereas point-in-time restore (PITR) is capped at 35 days and cannot serve multi-year needs. A common trap is assuming you must disable LTR entirely or migrate to Azure SQL Database, but those options either break compliance or introduce unnecessary complexity. Remember the memory tip: “Monthly for mandatory, trim the weekly to save the weekly budget.”
DP-300 Practice Question: Monitor, configure, and optimize database resources
This DP-300 practice question tests your understanding of monitor, configure, and optimize database resources. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Your Azure SQL Managed Instance is configured with a long-term backup retention policy of 10 years. You need to reduce storage costs while still meeting a compliance requirement to retain monthly backups for 7 years. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure a new long-term retention policy that retains monthly backups for 7 years.
Option D is correct because configuring a long-term retention (LTR) policy with monthly backups for 7 years meets compliance while reducing cost by not retaining weekly/daily backups for the full 10 years. Option A is wrong because disabling LTR entirely loses compliance. Option B is wrong because moving to Azure SQL Database does not automatically reduce cost and may not be feasible. Option C is wrong because point-in-time restore (PITR) retention is limited to 35 days, not 7 years.
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.
✓
Configure a new long-term retention policy that retains monthly backups for 7 years.
Why this is correct
LTR allows granular retention schedules; monthly for 7 years is compliant and cost-effective.
Related concept
Read the scenario before looking for a memorised answer.
✗
Disable long-term backup retention and rely solely on point-in-time restore backups.
Why it's wrong here
PITR retention max is 35 days, insufficient for 7-year compliance.
✗
Set the point-in-time restore retention period to 7 years.
Why it's wrong here
PITR retention cannot exceed 35 days.
✗
Migrate the database to Azure SQL Database and use geo-redundant storage.
Why it's wrong here
Migration may not be cost-effective and geo-redundancy does not reduce cost.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
Identify which DP-300 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.
Monitor, configure, and optimize database resources — This question tests Monitor, configure, and optimize database resources — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure a new long-term retention policy that retains monthly backups for 7 years. — Option D is correct because configuring a long-term retention (LTR) policy with monthly backups for 7 years meets compliance while reducing cost by not retaining weekly/daily backups for the full 10 years. Option A is wrong because disabling LTR entirely loses compliance. Option B is wrong because moving to Azure SQL Database does not automatically reduce cost and may not be feasible. Option C is wrong because point-in-time restore (PITR) retention is limited to 35 days, not 7 years.
What should I do if I get this DP-300 question wrong?
Identify which DP-300 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.
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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