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Actual exam question from Microsoft's 70-762

Question #: 50
Topic #: 1

Note: This question is part of a series of questions that use the same or similar answer choices. An Answer choice may be correct for more than one question in the series. Each question independent of the other questions in this series. Information and details provided in a question apply only to that question.
You are a database developer for a company. The company has a server that has multiple physical disks. The disks are not part of a RAID array. The server hosts three Microsoft SQL Server instances. There are many SQL jobs that run during off-peak hours.
You must monitor the SQL Server instances in real time and optimize the server to maximize throughput, response time, and overall SQL performance.
What should you do?

A. A. Create asys.dm_os_waiting_tasks query.
B. Create a sys.dm_exec_sessions query.
C. Create a Performance Monitor Data Collector Set.
D. Create a sys.dm_os_memory_objects query.
E. Create a sp_configure "˜max server memory' query.
F. Create a SQL Profiler trace.
G. Create a sys.dm_os_wait_stats query.
H. Create an Extended Event.

Show Suggested Answer

Suggested Answer: B 🗳️
sys.dm_exec_sessions returns one row per authenticated session on SQL Server. sys.dm_exec_sessions is a server-scope view that shows information about all active user connections and internal tasks. This information includes client version, client program name, client login time, login user, current session setting, and more. Use sys.dm_exec_sessions to first view the current system load and to identify a session of interest, and then learn more information about that session by using other dynamic management views or dynamic management functions.
Examples of use include finding long-running cursors, and finding idle sessions that have open transactions.

by 414 at Feb. 19, 2020, 12:54 p.m.

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Heisenberg008

Highly Voted 5 years, 4 months ago

I think C is correct

upvoted 15 times

rya

5 years, 3 months ago

i agree, C is correct

upvoted 4 times

JohnFan

5 years, 3 months ago

Performance Monitor, also known as PerfMon, is a tool provided with the Windows operating system that you can use to monitor operating system, application, and hardware performance in real time. You can even establish thresholds and receive alerts when thresholds are crossed. As an alternative, you can capture performance data in logs that you can review in the graphical interface or save to SQL Server tables for trend analysis.

upvoted 3 times

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Andy7622

Most Recent 4 years, 8 months ago

And answer C doesn't say about directly about Performance Monitor . It says to create Performance Monitor Collector Sets.

upvoted 1 times

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Andy7622

4 years, 8 months ago

Data Collector Sets enable you to schedule data collection, so that you can analyze the results and view reports later. How about the words "view reports later ". The question asking about real time activities!

upvoted 1 times

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NickMane

4 years, 9 months ago

Seems like C

upvoted 1 times

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Anette

5 years ago

I think its C

upvoted 1 times

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gtc108

5 years, 2 months ago

"You must monitor the SQL Server instances in real time and optimize the server to maximize throughput, response time, and overall SQL performance." Performance Monitor is the only option listed that allows you to modify and select query plans in real time. Answer C:

upvoted 1 times

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Postarion

5 years, 2 months ago

C is Correct accoring to JohnFan comment

upvoted 3 times

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Nelly100

5 years, 2 months ago

I read all your answers but they are all wrong. The correct answer is B. The question is talking about monitoring in real time. sys.dm_exec_sessions returns one row per authenticated session on SQL Server. sys.dm_exec_sessions is a server-scope view that shows information about all active user connections and internal tasks. This information includes client version, client program name, client login time, login user, current session setting, and more. Use sys.dm_exec_sessions to first view the current system load and to identify a session of interest, and then learn more information about that session by using other dynamic management views or dynamic management functions. Examples of use include finding long-running cursors, and finding idle sessions that have open transactions.

upvoted 4 times

Nickname17

5 years, 2 months ago

You must monitor the SQL Server instances in real time and optimize the server to maximize throughput, response time, and overall SQL performance.

upvoted 1 times

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Vijayglobal

5 years, 1 month ago

70-762 book - Page 348 - "Typically, you user performance counters to confirm the suspicion of a problem that you uncover by using wait statistics rather than a starting point." Also MS document: "Use sys.dm_exec_sessions to first view the current system load and to identify a session of interest, and then learn more information about that session by using other dynamic management views or dynamic management functions."

upvoted 1 times

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