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QUESTION 41
You are developing an application that connects to a database. The application runs the following jobs.
The READ_COMMITTED_SNAPSHOT database option is set to OFF, and auto-content is set to ON. Within the stored procedures, no explicit transactions are defined. If JobB starts before JobA, it can finish in seconds. If JobA starts first, JobB takes a long time to complete. You need to use Microsoft SQL Server Profiler to determine whether the blocking that you observe in JobB is caused by locks acquired by JobA. Which trace event class in the Locks event category should you use?
A. LockAcquired
B. LockCancel
C. LockDeadlock
D. LockEscalation
Answer: A
QUESTION 42
Hotspot Question
You have a database that contains both disk-based and memory-optimized tables. You need to create two modules. The modules must meet the requirements described in the following table.
Which programming object should you use for each module? To answer, select the appropriate object types in the answer area.
Answer:
QUESTION 43
You use Microsoft SQL Server Profile to evaluate a query named Queryl. The Profiler report indicates the following issues:
– At each level of the query plan, a low total number of rows are processed.
– The query uses many operations.
This results in a high overall cost for the query. You need to identify the information that will be useful for the optimizer. What should you do?
A. Start a SQL Server Profiler trace for the event class Auto Stats in the Performance event category.
B. Create one Extended Events session with the sqlserver.missing_column_statistics eventadded.
C. Start a SQL Server Profiler trace for the event class Soft Warnings in the Errors and Warnings event category.
D. Create one Extended Events session with the sqlserver.missing_join_predicate event added.
Answer: D
QUESTION 44
You are experiencing performance issues with the database server. You need to evaluate schema locking issues, plan cache memory pressure points, and backup I/O problems. What should you create?
A. a System Monitor report
B. a sys.dm_exec_query_stats dynamic management view query
C. a sys.dm_exec_session_wait_stats dynamic management view query
D. an Activity Monitor session in Microsoft SQL Management Studio
Answer: C
QUESTION 45
Hotspot Question
You are maintaining statistics for a database table named tbiTransaction. The table contains more than 10 million records. You need to create a stored procedure that meets the following requirements:
– On weekdays, update statistics for a sample of the total number of records in the table.
– On weekends, update statistics by sampling all rows in the table.
A maintenance task will call this stored procedure daily. How should you complete the stored procedure? To answer, select the appropriate Transact-SQL segments in the answer area. NOTE: Each correct selection is worth one point.
Answer:
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