Latest MCSE 70-461 Real Exam Download 61-70

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QUESTION 61

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 @@ERROR != 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 @@ERROR != 0

ROLLBACK TRANSACTION;

END CATCH

 

Correct Answer: D

 

 

QUESTION 62

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.

 

Correct Answer: M

 

 

QUESTION 63

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?

 

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.

 

Correct Answer: K

 

 

QUESTION 64

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?

 

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.

 

Correct Answer: G

 

 

QUESTION 65

You are developing a database application by using Microsoft SQL Server 2012. An application that uses a database begins to run slowly. Your investigation shows the root cause is a query against a read-only table

that has a clustered index. The query returns the following six columns:

· One column in its WHERE clause contained in a non-clustered index · Four additional columns

· One COUNT (*) column based on a grouping of the four additional columns You need to optimize the statement.

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.

 

Correct Answer: F

 

 

QUESTION 66

You administer a Microsoft SQL Server 2012 database named ContosoDb. Tables are defined as shown in the exhibit. (Click the Exhibit button.)

 

 

You need to display rows from the Orders table for the Customers row having the CustomerId value set to

1 in the following XML format.

 

Which Transact-SQL query should you use?

 

A. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN

Customers ON Orders.CustomerId = Customers-CustomerId WHERE Customers. CustomerId = 1

FOR XML RAW

B. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId

WHERE Customers=CustomerId = 1

FOR XML RAW, ELEMENTS

C. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers. CustomerId = 1

FOR XML AUTO

D. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId – Customers.CustomerId WHERE Customers. CustomerId= 1

FOR XML AUTO, ELEMENTS

E. SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers. CustomerId= 1

FOR XML AUTO

F. SELECT Name, Country, Orderld, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers. CustomerId= 1

FOR XML AUTO, ELEMENTS

G. SELECT Name AS ‘@Name’, Country AS ‘@Country’, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId= 1

FOR XML PATH (‘Customers’)

H. SELECT Name AS ‘Customers/Name’, Country AS ‘Customers/Country’, OrderId, OrderDate, Amount FROM Orders

INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId= 1

FOR XML PATH (‘Customers’)

 

Correct Answer: F

 

 

QUESTION 67

You administer a Microsoft SQL Server 2012 database named ContosoDb. Tables are defined as shown in the exhibit. (Click the Exhibit button.)

 

 

You need to display rows from the Orders table for the Customers row having the Customerld value set to

1 in the following XML format.

Which Transact-SQL query should you use?

 

A. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers-CustomerId WHERE Customers. CustomerId = 1

FOR XML RAW

B. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers. CustomerId = 1

FOR XML RAW, ELEMENTS

C. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId WHERE Customers. CustomerId = 1

FOR XML AUTO

D. SELECT OrderId, OrderDate, Amount, Name, Country FROM Orders INNER JOIN Customers ON Orders.CustomerId – Customers.CustomerId WHERE Customers. CustomerId= 1

FOR XML AUTO, ELEMENTS

E. SELECT Name, Country, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers. CustomerId= 1

FOR XML AUTO

F. SELECT Name, Country, Crderld, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers. CustomerId= 1

FOR XML AUTO, ELEMENTS

G. SELECT Name AS ‘@Name’, Country AS ‘@Country’, OrderId, OrderDate, Amount FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId= 1

FOR XML PATH (‘Customers’)

H. SELECT Name AS ‘Customers/Name’, Country AS ‘Customers/Country’, OrderId, OrderDate, Amount FROM Orders

INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId WHERE Customers.CustomerId= 1

FOR XML PATH (‘Customers’)

 

Correct Answer: G

 

 

QUESTION 68

You use Microsoft SQL Server 2012 to write code for a transaction that contains several statements. There is high contention between readers and writers on several tables used by your transaction. You need to minimize the use of the tempdb space. You also need to prevent reading queries from blocking writing queries. Which isolation level should you use?

 

A. SERIALIZABLE

B. SNAPSHOT

C. READ COMMITTED SNAPSHOT

D. REPEATABLE READ

 

Correct Answer: C

 

 

QUESTION 69

You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects. You need to ensure that the top half of the students arranged by their average marks must be given a rank of 1 and the remaining students must be given a rank of 2. Which Transact-SQL query should you use?

 

A. SELECT StudentCode as Code,

RANK() OVER (ORDER BY AVG (Marks) DESC) AS Value

FROM StudentMarks

GROUP BY StudentCode

B. SELECT Id, Name, Marks,

DENSE_RANK() OVER (ORDER BY Marks DESC) AS Rank

FROM StudentMarks

C. SELECT StudentCode as Code,

DENSE_RANK() OVER (ORDER BY AVG (Marks) DESC) AS Value

FROM StudentMarks

GROUP BY StudentCode

D. SELECT StudentCode as Code,

NTILE (2) OVER (ORDER BY AVG (Marks) DESC) AS Value

FROM StudentMarks

GROUP BY StudentCode

E. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks,

RANK() OVER (PARTITION BY SubjectCode ORDER BY Marks ASC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

F. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks,

RANK() OVER (PARTITION BY SubjectCode ORDER BY Marks DESC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

G. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks,

RANK () OVER (PARTITION BY StudentCode ORDER BY Marks ASC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

H. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks,

RANXO OVER (PARTITION BY StudentCode ORDER BY Marks DESC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

 

Correct Answer: D

 

 

QUESTION 70

You create a table that has the StudentCode, SubjectCode, and Marks columns to record mid-year marks for students. The table has marks obtained by 50 students for various subjects. You need to ensure that the following requirements are met:

Students must be ranked based on their average marks.

If one or more students have the same average, the same rank must be given to these students. Consecutive ranks must be skipped when the same rank is assigned.

Which Transact-SQL query should you use?

A. SELECT StudentCode as Code,

RANK() OVER(ORDER BY AVG (Marks) DESC) AS Value

FROM StudentMarks

GROUP BY StudentCode

B. SELECT Id, Name, Marks,

DENSE_RANK() OVER(ORDER BY Marks DESC) AS Rank

FROM StudentMarks

C. SELECT StudentCode as Code,

DENSE_RANK() OVER(ORDER BY AVG (Marks) DESC) AS Value

FROM StudentMarks

GROUP BY StudentCode

D. SELECT StudentCode as Code,

NTILE(2) OVER(ORDER BY AVG (Marks) DESC) AS Value

FROM StudentMarks

GROUP BY StudentCode

E. SELECT StudentCode AS Code,Marks AS Value FROM (

SELECT StudentCode, Marks AS Marks,

RANK() OVER(PARTITION BY SubjectCode ORDER BY Marks ASC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

F. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks,

RANK() OVER(PARTITION BY SubjectCode ORDER BY Marks DESC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

G. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks,

RANK() OVER(PARTITION BY StudentCode ORDER BY Marks ASC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

H. SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks,

RANXO OVER(PARTITION BY StudentCode ORDER BY Marks DESC) AS Rank

FROM StudentMarks) tmp

WHERE Rank = 1

 

Correct Answer: A

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