15 02 2015

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Vendor: Microsoft
Exam Code: 70-457
Exam Name: Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Exam

QUESTION 81
You administer a Microsoft SQL Server 2012 server that has SQL Server Integration Services (SSIS) installed.
You plan to deploy new SSIS packages to the server.
The SSIS packages use the Project Deployment Model together with parameters and Integration Services environment variables.
You need to configure the SQL Server environment to support these packages.
What should you do?

A.    Create SSIS configuration files for the packages.
B.    Create an Integration Services catalog.
C.    Install Data Quality Services.
D.    Install Master Data services.

Answer: B
Explanation:
http://msdn.microsoft.com/en-us/library/bb677181.aspx

QUESTION 82
You administer a Microsoft SQL Server 2012 server.
You plan to deploy new features to an application.
You need to evaluate existing and potential clustered and non-clustered indexes that will improve performance.
What should you do?

A.    Query the sys.dm_db_index_usage_stats DMV.
B.    Query the sys.dm_db_missing_index_details DMV.
C.    Use the Database Engine Tuning Advisor.
D.    Query the sys.dm_db_missing_index_columns DMV.

Answer: C
Explanation:
http://msdn.microsoft.com/en-us/library/ms174202.aspx

QUESTION 83
You administer a Microsoft SQL Server database named Sales.
The database is 3 terabytes in size.
The Sales database is configured as shown in the following table.

You discover that Sales_2.ndf is corrupt.
You need to recover the corrupted data in the minimum amount of time.
What should you do?

A.    Perform a file restore.
B.    Perform a transaction log restore.
C.    Perform a restore from a full backup.
D.    Perform a filegroup restore.

Answer: A

QUESTION 84
You administer two instances of Microsoft SQL Server 2012.
You deploy an application that uses a database on the named instance.
The application is unable to connect to the database on the named instance.
You need to ensure that the application can connect to the named instance.
What should you do?

A.    Use the Data Quality Client to configure the application.
B.    Start the SQL Server Browser Service.
C.    Use the Master Data Services Configuration Manager to configure the application.
D.    Start the SQL Server Integration Services Service.

Answer: B

QUESTION 85
Your application contains a stored procedure for each country. Each stored procedure accepts an employee identification number through the @EmpID parameter.
You plan to build a single process for each employee that will execute the stored procedure based on the country of residence.
Which approach should you use?

A.    a recursive stored procedure
B.    Trigger
C.    An UPDATE statement that includes CASE
D.    Cursor
E.    The foreach SQLCLR statement

Answer: D

QUESTION 86
You use Microsoft SQL Server 2012 to develop a database application.
You create a stored procedure named dbo.ModifyData that can modify rows.
You need to ensure that when the transaction fails, dbo.ModifyData meets the following requirements:
– Does not return an error
– Closes all opened transactions
Which Transact-SQL statement should you use?

A.    BEGIN TRANSACTION
BEGIN TRY
EXEC dbo.ModifyData
COMMIT TRANSACTION
END TRY
BEGIN CATCH
IF @@ TRANCOUNT = 0
ROLLBACK TRANSACTION;
END CATCH
B.    BEGIN TRANSACTION
BEGIN TRY
EXEC dbo.ModifyData
COMMIT TRANSACTION
END TRY
BEGIN CATCH
IF @@ERRCR != 0
ROLLBACK TRANSACTION;
THROW;
END CATCH
C.    BEGIN TRANSACTION
BEGIN TRY
EXEC dbo.ModifyData
COMMIT TRANSACTION
END TRY
BEGIN CATCH
IF @@TRANCOUNT = 0
ROLLBACK TRANSACTION;
THROW;
END CATCH
D.    BEGIN TRANSACTION
BEGIN TRY
EXEC dbo.ModifyData
COMMIT TRANSACTION
END TRY
BEGIN CATCH
IF @@ZRROR !- 0
ROLLBACK TRANSACTION;
END CATCH

Answer: D

QUESTION 87
You are developing a database application by using Microsoft SQL Server 2012.
An application that uses a database begins to run slowly.
You discover that during reads, the transaction experiences blocking from concurrent updates.
You need to ensure that throughout the transaction the data maintains the original version.
What should you do?

A.    Add a HASH hint to the query.
B.    Add a LOOP hint to the query.
C.    Add a FORCESEEK hint to the query.
D.    Add an INCLUDE clause to the index.
E.    Add a FORCESCAN hint to the Attach query.
F.    Add a columnstore index to cover the query.
G.    Enable the optimize for ad hoc workloads option.
H.    Cover the unique clustered index with a columnstore index.
I.    Include a SET FORCEPLAN ON statement before you run the query.
J.    Include a SET STATISTICS PROFILE ON statement before you run the query.
K.    Include a SET STATISTICS SHOWPLAN_XML ON statement before you run the query.
L.    Include a SET TRANSACTION ISOLATION LEVEL
REPEATABLE READ statement before you run the query.
M.    Include a SET TRANSACTION ISOLATION LEVEL SNAPSHOT statement before you run the query.
N.    Include a SET TRANSACTION ISOLATION LEVEL SERIALIZABLE statement before you run the query.

Answer: M

QUESTION 88
You are developing a database application by using Microsoft SQL Server 2012.
You have a query that runs slower than expected.
You need to capture execution plans that will include detailed information on missing indexes recommended by the query optimizer.
What should you do?

Answer: K

QUESTION 89
You are developing a database application by using Microsoft SQL Server 2012.
An application that uses a database begins to run slowly.
You discover that a large amount of memory is consumed by single-use dynamic queries.
You need to reduce procedure cache usage from these statements without creating any additional indexes. What should you do?

Answer: G
Explanation:
http://msdn.microsoft.com/en-us/library/cc645587.aspx

QUESTION 90
You have a database that contains the tables as shown below:

You have a stored procedure named Procedure1. Procedure1 retrieves all order ids after a specific date. The rows for Procedure1 are not sorted. Procedure1 has a single parameter named Parameter1. Parameter1 uses the varchar type and is configured to pass the specific date to Procedure1. A database administrator discovers that OrderDate is not being compared correctly to Parameter1 after the data type of the column is changed to datetime.
You need to update the SELECT statement to meet the following requirements:
– The code must NOT use aliases.
– The code must NOT use object delimiters.
– The objects called in Procedure1 must be able to be resolved by all users.
– OrderDate must be compared to Parameter1 after the data type of Parameter1 is changed to datetime.
Which SELECT statement should you use? To answer, type the correct code in the answer area.
Answer:
SELECT Orders.OrderID
FROM Orders
WHERE Orders.OrderDate>CONVERT(datetime,@Parameter1)

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