Introducing The New!
Surepassexam Collection
Get Unlimited Access to all
Surepassexam's PREMIUM files
Q1. 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.
Answer: K
Q2. DRAG DROP
You use a Microsoft SQL Server 2012 database.
You need to create an indexed view within the database for a report that displays Customer Name and the total revenue for that customer.
Which four T-SQL statements should you use? (To answer, move the appropriate SQL statements from the list of statements to the answer area and arrange them in the correct order.)
Answer:
Q3. CORRECT TEXT
You have a database named Sales that contains the tables shown in the exhibit. (Click the Exhibit button.)
You have an application named Appl. You have a parameter named @Count that uses the
int data type. App1 is configured to pass @Count to a stored procedure.
You need to create a stored procedure named usp_Customers for App1 that returns only
the number of rows specified by the @Count parameter.
The solution must NOT use BEGIN and END statements.
Part of the correct T-SQL statement has been provided in the answer area. Provide the
complete code.
Answer:
Q4. You develop a database for a travel application. You need to design tables and other database objects. You create a stored procedure. You need to supply the stored procedure with multiple event names and their dates as parameters. What should you do?
A. Use the CAST function.
B. Use the DATE data type.
C. Use the FORMAT function.
D. Use an appropriate collation.
E. Use a user-defined table type.
F. Use the VARBINARY data type.
G. Use the DATETIME data type.
H. Use the DATETIME2 data type.
I. Use the DATETIMEOFFSET data type.
J. Use the TODATETIMEOFFSET function.
Answer: E
Q5. DRAG DROP
You administer a Microsoft SQL Server 2012 database. You use an OrderDetail table that has the following definition:
You need to create a non-clustered index on the SalesOrderID column in the OrderDetail table to include only rows that contain a value in the SpecialOfferID column. Which four Transact-SQL statements should you use?
(To answer, move the appropriate statements from the list of statements to the answer area and arrange them in the correct order.)
Answer:
Q6. CORRECT TEXT
You have an XML schema collection named Sales.InvoiceSchema. You need to declare a variable of the XML type named XML1. The solution must ensure that XML1 is validated by using Sales.InvoiceSchema.
Which code segment should you use?
To answer, type the correct code in the answer area.
Answer:
DECLARE @XML1 XML(Sales.InvoiceSchema)
Q7. 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
Answer: C
Q8. CORRECT TEXT
You need to create a view named uv_CustomerFullNames. The view must prevent the underlying structure of the customer table from being changed.
Part of the correct T-SQL statement has been provided in the answer area. Provide the complete code.
Answer:
Q9. Your database contains a table named Purchases. The table includes a DATETIME column named PurchaseTime that stores the date and time each purchase is made. There is a non-clustered index on the PurchaseTime column.
The business team wants a report that displays the total number of purchases made on the current day.
You need to write a query that will return the correct results in the most efficient manner.
Which Transact-SQL query should you use?
A. SELECT COUNT(*)
FROM Purchases
WHERE PurchaseTime = CONVERT(DATE, GETDATE())
B. SELECT COUNT(*)
FROM Purchases
WHERE PurchaseTime = GETDATE()
C. SELECT COUNT(*)
FROM Purchases
WHERE CONVERT(VARCHAR, PurchaseTime, 112) = CONVERT(VARCHAR,
GETDATE(), 112)
D. SELECT COUNT(*)
FROM Purchases
WHERE PurchaseTime >= CONVERT(DATE, GETDATE())
AND PurchaseTime < DATEADD(DAY, 1, CONVERT(DATE, GETDATE()))
Answer: D
Explanation:
Two answers will return the correct results (the "WHERE CONVERT..." and "WHERE ... AND ... " answers). The correct answer for Microsoft would be the answer that is most "efficient". Anybody have a clue as to which is most efficient? In the execution plan, the one that I've selected as the correct answer is the query with the shortest duration. Also, the query answer with "WHERE CONVERT..." threw warnings in the execution plan...something about affecting CardinalityEstimate and SeekPlan.
I also found this article, which leads me to believe that I have the correct Answer: http://technet.microsoft.com/en-us/library/ms181034.aspx
Q10. CORRECT TEXT
You have a database named Sales that contains the tables as shown in the exhibit. (Click
the Exhibit button.)
You need to create a query that meets the following requirements:
References columns by using one-part names only.
Groups aggregates by SalesTerritorylD, and then by ProductlD.
Orders the results in descending order by SalesTerritorylD and then by ProductlD.
Part of the correct T-SQL statement has been provided in the answer area. Provide the complete code.
Answer:
Q11. 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 retrieve the students who scored the highest marks for each subject along with the marks.
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
Answer: F
Q12. 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
Q13. CORRECT TEXT
You have a database named Sales that contains the tables as shown in the exhibit. (Click the Exhibit button.)
You need to create a query that returns a list of products from Sales.ProductCatalog. The solution must meet the following requirements:
UnitPrice must be returned in descending order.
The query must use two-part names to reference the table.
The query must use the RANK function to calculate the results.
The query must return the ranking of rows in a column named PriceRank.
The list must display the columns in the order that they are defined in the table.
PriceRank must appear last.
Part of the correct T-SQL statement has been provided in the answer area. Provide the complete code.
Answer:
Q14. You are developing a database that will contain price information. You need to store the prices that include a fixed precision and a scale of six digits. Which data type should you use?
A. Float
B. Money
C. Smallmoney
D. Numeric
Answer: D
Explanation:
Numeric is the only one in the list that can give a fixed precision and scale.
Reference: http://msdn.microsoft.com/en-us/library/ms179882.aspx
Q15. You are developing a database that will contain price information.
You need to store the prices that include a fixed precision and a scale of six digits.
Which data type should you use?
A. Real
B. Small money
C. Money
D. Decimal
Answer: D
Q16. You develop a Microsoft SQL Server 2012 database that contains a heap named OrdersHistoncal.
You write the following Transact-SQL query:
. INSERT INTO OrdersHistorical
. SELECT * FROM CompletedOrders
You need to optimize transaction logging and locking for the statement. Which table hint should you use?
A. HOLDLOCK
B. ROWLOCK
C. XLOCK
D. UPDLOCK
E. TABLOCK
Answer: E
Q17. You develop a Microsoft SQL Server 2012 database that contains a table named Customers. The Customers table has the following definition:
You need to create an audit record only when either the MobileNumber or HomeNumber column is updated.
Which Transact-SQL query should you use?
A. CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF COLUMNS_UPDATED (HomeNumber, MobileNumber) - - Create Audit Records
B. CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF EXISTS( SELECT HomeNumber FROM inserted) OR EXISTS (SELECT MobileNumber FROM inserted) - - Create Audit Records
C. CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF COLUMNS_CHANGED (HomeNumber, MobileNumber) - - Create Audit Records
D. CREATE TRIGGER TrgPhoneNumberChange ON Customers FOR UPDATE AS IF UPDATE (HomeNumber) OR UPDATE (MobileNumber) - - Create Audit Records
Answer: D