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Vendor: Microsoft
Exam Code: 70-469
Exam Name: Recertification for MCSE: Data Platform

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QUESTION 231
Drag and Drop Questions
You have a database named database1. Each table in database1 has one index per column.
Users often report that creating items takes a long time.
You need to perform the following maintenance tasks:
- Identify unused indexes.
- Identify indexes that need to be defragmented.
What should you use? To answer, drag the appropriate function to the correct management task in the answer area. (Answer choices may be used once, more than once, or not at all.)
 
Answer: 
 

QUESTION 232
Drag and Drop Questions
You have a database that contains three tables.
The tables are configured as shown in the following table.
 
You have the following query:
 
The execution plan for the query is shown in the exhibit. (Click the Exhibit button.)
 
You need to create one index to minimize the amount of time it takes to execute the query.
What should you do? To answer, drag the appropriate columns to the correct locations in the answer area. (Answer choices may be used once, more than once, or not at all.)
 
Answer: 
 

QUESTION 233
You have a SQL Server 2012 instance that hosts a single-user database.
The database does not contain user-created stored procedures or user-created functions.
You need to minimize the amount of memory used for query plan caching.
Which advanced server option should you modify?

A.    Scan for Startup Procs
B.    Enable Contained Databases
C.    Optimize for Ad hoc Workloads
D.    Allow Triggers to Fire Others

Answer: C

QUESTION 234
You execute the following code.
 
After populating the Employees table with 10,000 rows, you execute the following query:
 
You need to reduce the amount of time it takes to execute the query.
What should you do?

A.    Partition the table and use the JobTitle column for the partition scheme.
B.    Change SUBSTRING(JobTitle,l,l) = 'C to JobTitle LIKE 'c%'
C.    Change SUBSTRING (JobTitle, 1,1] = 'c' to LEFT(JobTitle ,1) = 'c'.
D.    Replace IX_Employees with a clustered index.

Answer: B

QUESTION 235
You have a server that has SQL Server 2012 installed.
You need to identify which parallel execution plans are running in serial.
Which tool should you use?

A.    Performance Monitor
B.    Database Engine Tuning Advisor
C.    Data Profile Viewer
D.    Extended Events

Answer: D
Explanation:
http://msdn.microsoft.com/en-us/library/bb677278.aspx
http://msdn.microsoft.com/en-us/library/bb630282.aspx
http://www.sql-server-performance.com/2006/query-execution-plan-analysis/
http://www.simple-talk.com/sql/learn-sql-server/understanding-and-using-parallelism-in-sqlserver/
http://www.sqlservercentral.com/articles/SQL+Server+2012/At+last%2c+execution+plans+ show+true+thread+reservations./92458/
http://sqlblog.com/blogs/paul_white/archive/2011/12/23/forcing-a-parallel-query-executionplan.aspx
http://sqlblog.com/blogs/paul_white/archive/2012/05/02/parallel-row-goals-gone-rogue.aspx http://msdn.microsoft.com/en-us/library/bb895310.aspx
http://msdn.microsoft.com/en-us/library/bb895313.aspx
http://msdn.microsoft.com/en-us/library/hh231122.aspx

QUESTION 236
You have a SQL Server 2012 database named DB1.
You have a backup device named Device1.
You discover that the log file for the database is full.
You need to ensure that DB1 can complete transactions.
The solution must not affect the chain of log sequence numbers (LSNs).
Which code segment should you execute?

A.    BACKUP LCG DB1 TO Device1 WITH COPY_ONLY    BACKUP LOG DB1 TO Device1 WITH COPY_ONLY
B.    BACKUP LOG DB1 TO Device1    BACKUP LOG DB1 TO Device1 WITH NORECOVERY
C.    BACKUP LOG DB1 TO Device1 WITH NCRECCVERY    BACKUP LOG DB1 TO Device1 WITH TRUNCATE_ONLY
D.    BACKUP LOG D31 TO Device1 WITH TRUNCATE ONLY    BACKUP LOG DB1 TO Device1

Answer: D
Explanation:
http://msdn.microsoft.com/en-us/library/ms186865.aspx
http://msdn.microsoft.com/en-us/library/ms179478.aspx
http://msdn.microsoft.com/en-us/library/ms190925.aspx

QUESTION 237
Drag and Drop Questions
You plan to create a new table that will contain a column named Salary.
Salary will contain highly sensitive data.
Salary must meet the following requirements:
- Contain numeric data.
- Contain only encrypted data that remains encrypted in memory.
You need to identify which encryption type and data type must be used for Salary.
Which encryption type and data type should you identity? To answer, drag the appropriate encryption type and data type to the correct identifier in the answer area.
 
Answer: 
 

QUESTION 238
You have a Microsoft SQL Azure database named DBAzure1.
You create a table in DBAzure1 by using the following script:
 
You need to recommend a solution to ensure that each combination of CustomerContact and CustomerDetails is not duplicated.
What should you recommend creating?

A.    A CHECK constraint
B.    A filtered index
C.    A columnstore index
D.    A UNIQUE constraint

Answer: D

QUESTION 239
Drag and Drop Questions
Your network contains a SQL Server 2012 instance named SQL1.
SQL1 contains a database named DB1. DB1 contains three tables.
The tables are configured as shown in the following table.
 
You plan to create indexes for the tables.
You need to identify which type of index must be created for each table.
The solution must minimize the amount of time required to return information from the tables.
Which type of index should you create for each table? To answer, drag the appropriate index type to the correct table in the answer area.
 
Answer: 
 

QUESTION 240
Drag and Drop Questions
You create a table that contains the following script:
 
You need to prevent duplicate values in the EmployeeID field.
Which five code segments should you use? To answer, move the appropriate code segments from the list of code segments to the answer area and arrange them in the correct order.
 
Answer: 
 


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