The answer is consistently high DTU/CPU consumption above 90% and a high log write percent. These two metrics directly indicate that your Azure SQL Database is hitting its allocated resource limits, forcing the engine to queue requests or throttle performance. When DTU or CPU usage stays above 90%, the database lacks processing headroom, while a high log write percent signals that the transaction log throughput is saturated, both of which are clear triggers for scaling up. On the Microsoft Azure Database Administrator Associate DP-300 exam, this question tests your ability to distinguish between genuine scaling signals and misleading metrics like low data IO or low memory, which actually suggest underutilization. A common trap is confusing low memory with a need to scale up, but in Azure SQL, low memory often means the database is not using its current allocation. Remember the mnemonic “CPU and Log, the scaling dog” to recall that only CPU/DTU and log write percent are reliable indicators for scaling up.
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. 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.
Which TWO metrics in Azure SQL Database indicate that the database might need to be scaled up?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Log write percent consistently above 90%
High DTU/CPU consumption and high log write percent indicate the database is hitting resource limits. Option A and D are correct. Option B is wrong because low data IO is not an indicator. Option C is wrong because low memory indicates underutilization. Option E is wrong because low session percent is not a scaling trigger.
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.
✗
Data IO percentage consistently below 20%
Why it's wrong here
Low IO does not indicate need to scale up.
✗
Session percent consistently below 10%
Why it's wrong here
Low session count does not indicate need to scale up.
✓
Log write percent consistently above 90%
Why this is correct
High log write percent indicates the log rate is throttled.
Related concept
Read the scenario before looking for a memorised answer.
✗
Memory consumption consistently below 30%
Why it's wrong here
Low memory indicates underutilization.
✓
DTU/CPU consumption consistently above 90%
Why this is correct
High CPU indicates need for more resources.
Related concept
Read the scenario before looking for a memorised answer.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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: Log write percent consistently above 90% — High DTU/CPU consumption and high log write percent indicate the database is hitting resource limits. Option A and D are correct. Option B is wrong because low data IO is not an indicator. Option C is wrong because low memory indicates underutilization. Option E is wrong because low session percent is not a scaling trigger.
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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