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Exam DP-300 topic 4 question 15 discussion

Actual exam question from Microsoft's DP-300
Question #: 15
Topic #: 4
[All DP-300 Questions]

You have an Azure SQL managed instance.
You need to gather the last execution of a query plan and its runtime statistics. The solution must minimize the impact on currently running queries.
What should you do?

  • A. Generate an estimated execution plan.
  • B. Generate an actual execution plan.
  • C. Run sys.dm_exec_query_plan_stats.
  • D. Generate Live Query Statistics.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
Reference:
https://docs.microsoft.com/en-us/sql/relational-databases/system-dynamic-management-views/sys-dm-exec-query-plan-stats-transact-sql?view=sql-server-ver15
by o2091 at Nov. 11, 2021, 9:39 p.m.

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voodoo_sh
3 months, 1 week ago
Selected Answer: C
DMV has minimum impact, compared to generating Actual plan or Live Query Statistics with the query in question. Note that for DMV for work properly, LAST_QUERY_PLAN_STATS configuration must be enabled for a database (or a trace flag at a server level).
upvoted 1 times
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vcloudpmp
9 months, 2 weeks ago
https://learn.microsoft.com/en-us/training/modules/explore-query-performance-optimization/3-explain-estimated-actual
upvoted 1 times
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Ciupaz
1 year, 6 months ago
The DMV has the minimum impact, like said in the question.
upvoted 1 times
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Chunchi
2 years, 3 months ago
c: is correct
upvoted 3 times
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o2091
2 years, 5 months ago
looks correct
upvoted 1 times
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o2091
2 years, 5 months ago
parece correcto
upvoted 3 times
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