70-469 Exam
70-469 bundle（11 to 20） for IT specialist: Mar 2021 Edition
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Q11. You execute the following code:
The execution plan for the query is shown in the exhibit. (Click the Exhibit button.)
You need to prevent the key lookup.
What should you modify?
More than one answer choice may achieve the goal. Select the BEST answer.
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Q12. You have a SQL Server instance on a server named Server1.
You need to recommend a solution to perform the following tasks every week:
Rebuild the indexes by using a new fill factor.
Run a custom T-SQL command.
Back up the databases.
What should you recommend?
More than one answer choice may achieve the goal. Select the BEST answer.
A. A trigger
B. An alert
C. A maintenance plan
D. Windows PowerShell
E. A system policy
Answer: C
Q13. You use SQL Server 2012 to store data used by an e-commerce application.
You develop a stored procedure named sp1. Sp1 is used to read the price of all the products sold on the e-commerce site.
You need to ensure that sp1 can read data even while another transaction is modifying the price of a product. Sp1 must only read committed data.
Which transaction isolation level should you use in sp1?
A. Serializable
B. Snapshot
C. Repeatable read
D. Read committed
Answer: B
Q14. You use SQL Server 2014 to maintain the data used by applications at your company.
You want to execute two statements.
You need to guarantee that either both statements succeed, or both statements fail together as a batch.
Which code should you use?
A. Option A
B. Option B
C. Option C
D. Option D
E. Option E
Answer: D
Q15. You have a Microsoft SQL Azure database that contains a table named Employees.
You create a non-clustered index named EmployeeName on the name column.
You write the following query to retrieve all of the employees that have a name that starts with the letters JOH:
You discover that the query performs a table scan.
You need to ensure that the query uses EmployeeName.
What should you do?
A. Recreate EmployeeName as a unique index
B. Recreate EmployeeName as a clustered index
C. Replace LEFT(name,3) = 'JOH' by using name like 'JOH%'
D. Replace LEFT(name,3) = 'JOH' by using substring(name, 1, 3) = 'JOH'
Answer: C
Q16. You review a query that runs slowly. The query accesses data in a table named Schema1.Table1.
The following is the relevant portion of the execution plan for the query:
You need to create the missing index.
Which code segment should you execute?
A. CREATE NONCLUSTERED INDEX IX1 on Schema1.Table1 (Column1) INCLUDE (Column4) WHERE Column2 <> Column3
B. CREATE NONCLUSTERED INDEX IX1 on Schema1.Table1 (Column1)
C. CREATE NONCLUSTERED INDEX IX1 on Schema1.Table1 (Column1, Column2, Column3) INCLUDE (Column4)
D. CREATE NONCLUSTERED INDEX IX1 on schema1.Table1 (Column1) INCLUDE (Column4)
Answer: C
Q17. You need to recommend a disaster recovery strategy for the Inventory database.
What should you include in the recommendation?
A. Log shipping
B. SQL Server Failover Clustering
C. AlwaysOn availability groups
D. Peer-to-peer replication
Answer: A
Q18. You run the following code:
You need to ensure that the root node of the XML data stored in the Details column is <Order_Details>.
What should you implement?
More than one answer choice may achieve the goal. Select the BEST answer.
A. A user-defined data type
B. An XML index
C. A Data Definition Language (DDL) trigger
D. A data manipulation language (DML) trigger
E. An XML schema collection
Answer: E
Q19. You are troubleshooting an application that runs a query. The application frequently causes deadlocks.
You need to identify which transaction causes the deadlock.
What should you do?
More than one answer choice may achieve the goal. Select the BEST answer.
A. Query the sys.dm_exec_sessions dynamic management view.
B. Query the sys.dm_exec_requests dynamic management view.
C. Create a trace in SQL Server Profiler that contains the Deadlock graph event
D. Create an extended events session to capture deadlock information.
Answer: D
Q20. You need to modify the function in CountryFromID.sql to ensure that the country name is returned instead of the country ID.
Which line of code should you modify in CountryFromID.sql?
A. 04
B. 05
C. 06
D. 19
Answer: D