The answer is to open the deadlock graph file in SQL Server Management Studio (SSMS). This is correct because SSMS provides a graphical visualization of the deadlock graph captured by an extended events session, allowing you to see the resource types, processes involved, and the exact queries that caused the deadlock. On the Microsoft Azure Database Administrator Associate DP-300 exam, this scenario tests your understanding of how to retrieve and interpret deadlock data from Azure SQL Database, often appearing as a trap where you might confuse deadlock analysis with Query Store or dynamic management views. A common mistake is thinking sys.dm_exec_requests shows deadlock history, but it only reflects current requests, not past deadlock events. Remember the memory tip: "Graphs need SSMS" — when you see a deadlock graph file, your tool is SSMS, not Azure Monitor or Query Store.
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. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 Database is experiencing deadlocks. You have enabled deadlock graphs in the extended events session. After capturing a deadlock, you need to analyze it to determine which queries are involved. What should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Open the deadlock graph file in SQL Server Management Studio (SSMS).
Option D is correct because SSMS can graphically open deadlock graphs from extended events. Option A is wrong because Query Store does not capture deadlocks. Option B is wrong because Azure Monitor collects metrics but not deadlock details. Option C is wrong because sys.dm_exec_requests does not show deadlock history.
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.
✗
Query sys.dm_exec_requests with a filter on blocking.
Why it's wrong here
Shows current blocking, not past deadlocks.
✓
Open the deadlock graph file in SQL Server Management Studio (SSMS).
Why this is correct
SSMS can display deadlock graphs captured via extended events.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Monitor for SQL and view deadlock metrics.
Why it's wrong here
Azure Monitor for SQL shows deadlock count but not the graph.
✗
Query Store and review the regressed queries.
Why it's wrong here
Query Store does not capture deadlock events.
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.
Trap categories for this question
Command / output trap
Shows current blocking, not past deadlocks.
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.
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: Open the deadlock graph file in SQL Server Management Studio (SSMS). — Option D is correct because SSMS can graphically open deadlock graphs from extended events. Option A is wrong because Query Store does not capture deadlocks. Option B is wrong because Azure Monitor collects metrics but not deadlock details. Option C is wrong because sys.dm_exec_requests does not show deadlock history.
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.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your Azure SQL Database is experiencing deadlocks. You enable trace flag 1222 to capture deadlock graphs in the error log. Where can you retrieve the deadlock information?
medium
A.sys.dm_exec_sessions
B.sys.query_store_query_text
C.sys.dm_exec_requests
✓ D.sys.messages or the SQL Server error log (viewable via sys.fn_get_audit_file)
Why D: Option B is correct because deadlock graphs captured by trace flag 1222 are written to the error log. Option A is wrong because deadlocks are not in Query Store by default. Option C is wrong because sys.dm_exec_requests shows current requests, not deadlock history. Option D is wrong because those DMVs show current sessions, not deadlocks.
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Question Discussion
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