Microsoft 70-461 Free Practice Questions

Q1. CORRECT TEXT 

You have a database named Sales that contains the tables shown in the exhibit. (Click the Exhibit button). 

You need to create a query for a report. The query must meet the following requirements: 

NOT use object delimiters. 

Use the first initial of the table as an alias. 

Return the most recent order date for each customer. 

Retrieve the last name of the person who placed the order. 

The solution must support the ANSI SQL-99 standard. 

Part of the correct T-SQL statement has been provided in the answer area. Provide the complete code. 

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Q2. CORRECT TEXT 

You have a database that contains the tables shown in the exhibit. (Click the Exhibit button.) 

You need to create a query that calculates the total sales of each OrderId from the Sales.Details table. The solution must meet the following requirements: 

Use one-part names to reference columns. 

Sort the order of the results from OrderId. 

NOT depend on the default schema of a user. 

Use an alias of TotalSales for the calculated ExtendedAmount. 

Display only the OrderId column and the calculated TotalSales column. 

..... 

Which code segment should you use? 

To answer, type the correct code in the answer area. 

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Q3. You develop a Microsoft SQL Server 2012 server database that supports an application. The application contains a table that has the following definition: 

CREATE TABLE Inventory 

(ItemID int NOT NULL PRIMARY KEY, 

ItemsInStore int NOT NULL, 

ItemsInWarehouse int NOT NULL) 

You need to create a computed column that returns the sum total of the ItemsInStore and ItemsInWarehouse values for each row. 

Which Transact-SQL statement should you use? 

A. ALTER TABLE Inventory 

ADD TotalItems AS ItemsInStore + ItemsInWarehouse 

B. ALTER TABLE Inventory 

ADD ItemsInStore - ItemsInWarehouse = TotalItemss 

C. ALTER TABLE Inventory 

ADD TotalItems = ItemsInStore + ItemsInWarehouse 

D. ALTER TABLE Inventory 

ADD TotalItems AS SUM(ItemsInStore, ItemslnWarehouse); 

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Q4. 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 

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Q5. 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 

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Q6. You develop a Microsoft SQL Server 2012 database. You create a view that performs the following tasks: 

. Joins 8 tables that contain up to 500,000 records each. 

. Performs aggregations on 5 fields. 

The view is frequently used in several reports. 

You need to improve the performance of the reports. 

What should you do? 

A. Convert the view into a table-valued function. 

B. Convert the view into a Common Table Expression (CTE). 

C. Convert the view into an indexed view. 

D. Convert the view into a stored procedure and retrieve the result from the stored procedure into a temporary table. 

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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 

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Q8. Your database contains two tables named DomesticSalesOrders and InternationalSalesOrders. Both tables contain more than 100 million rows. Each table has a Primary Key column named SalesOrderId. The data in the two tables is distinct from one another. 

Business users want a report that includes aggregate information about the total number of global sales and total sales amounts. 

You need to ensure that your query executes in the minimum possible time. 

Which query should you use? 

A. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM ( SELECT SalesOrderId, SalesAmount FROM DomesticSalesOrders UNION ALL SELECT SalesOrderId, SalesAmount FROM InternationalSalesOrders ) AS p 

B. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM ( SELECT SalesOrderId, SalesAmount FROM DomesticSalesOrders UNION SELECT SalesOrderId, SalesAmount FROM InternationalSalesOrders ) AS p 

C. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM DomesticSalesOrders UNION SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM InternationalSalesOrders 

D. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM DomesticSalesOrders UNION ALL SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount FROM InternationalSalesOrders 

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Q9. You develop a Microsoft SQL Server 2012 database that has two tables named SavingAccounts and LoanAccounts. Both tables have a column named AccountNumber of the nvarchar data type. 

You use a third table named Transactions that has columns named TransactionId AccountNumber, Amount, and TransactionDate. 

You need to ensure that when multiple records are inserted in the Transactions table, only the records that have a valid AccountNumber in the SavingAccounts or LoanAccounts are inserted. 

Which Transact-SQL statement should you use? 

A. CREATE TRIGGER TrgValidateAccountNumber ON Transactions INSTEAD OF INSERT AS BEGIN INSERT INTO Transactions SELECT TransactionID,AccountNumber,Amount,TransactionDate FROM inserted WHERE AccountNumber IN (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) END 

B. CREATE TRIGGER TrgValidateAccountNumber ON Transactions FOR INSERT AS BEGIN INSERT INTO Transactions SELECT TransactionID,AccountNumber,Amount,TransactionDate FROM inserted WHERE AccountNumber IN (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) END 

C. CREATE TRIGGER TrgValidateAccountNumber ON Transactions INSTEAD OF INSERT AS BEGIN IF EXISTS ( SELECT AccountNumber FROM inserted EXCEPT (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) BEGIN ROLLBACK TRAN END END 

D. CREATE TRIGGER TrgValidateAccountNumber ON Transactions FOR INSERT AS BEGIN IF EXISTS ( SELECT AccountNumber FROM inserted EXCEPT (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) BEGIN ROLLBACK TRAN END END 

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Q10. You use a Microsoft SQL Server 2012 database that contains a table named BlogEntry that has the following columns: 

Id is the Primary Key. 

You need to append the "This is in a draft stage" string to the Summary column of the recent 10 entries based on the values in EntryDateTime. 

Which Transact-SQL statement should you use? 

A. UPDATE TOP(10) BlogEntry 

SET Summary.WRITE(N' This is in a draft stage', NULL, 0) 

B. UPDATE BlogEntry 

SET Summary = CAST(N' This is in a draft stage' as nvarchar(max)) 

WHERE Id IN(SELECT TOP(10) Id FROM BlogEntry ORDER BY EntryDateTime DESC) 

C. UPDATE BlogEntry 

SET Summary.WRITE(N' This is in a draft stage', NULL, 0) FROM ( 

SELECT TOP(10) Id FROM BlogEntry ORDER BY EntryDateTime DESC) AS s WHERE BlogEntry.Id = s.ID 

D. UPDATE BlogEntry 

SET Summary.WRITE(N' This is in a draft stage', 0, 0) 

WHERE Id IN(SELECT TOP(10) Id FROM BlogEntry ORDER BY EntryDateTime DESC) 

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Q11. You develop a Microsoft SQL Server 2012 database. You create a view from the Orders and OrderDetails tables by using the following definition. 

You need to improve the performance of the view by persisting data to disk. What should you do? 

A. Create an INSTEAD OF trigger on the view. 

B. Create an AFTER trigger on the view. 

C. Modify the view to use the WITH VIEW_METADATA clause. 

D. Create a clustered index on the view. 

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Q12. 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. 

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Q13. You use Microsoft SQL Server 2012 to develop a database application. 

Your application sends data to an NVARCHAR(MAX) variable named @var. 

You need to write a Transact-SQL statement that will find out the success of a cast to a 

decimal (36,9). 

Which code segment should you use? 

A. BEGIN TRY SELECT convert(decimal(36,9), @var) AS Value, 'True' AS BadCast END TRY BEGIN CATCH SELECT convert(decimal(36,9), @var) AS Value, 'False' AS BadCast END CATCH 

B. TRY( SELECT convert(decimal(36,9), @var) SELECT 'True' AS BadCast ) CATCH( SELECT 'False' AS BadCast ) 

C. SELECT CASE WHEN convert(decimal(36,9), @var) IS NULL THEN 'True' ELSE 'False' END AS BadCast 

D. SELECT IIF(TRY_PARSE(@var AS decimal(36,9)) IS NULL, 'True', 'False') AS BadCast 

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Q14. 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. 

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Q15. You develop a Microsoft SQL Server 2012 server database that supports an application. 

The application contains a table that has the following definition: 

CREATE TABLE Inventory ( 

ItemID int NOT NULL PRIMARY KEY, 

ItemsInStore int NOT NULL, 

ItemsInWarehouse int NOT NULL) 

You need to create a computed column that returns the sum total of the ItemsInStore and ItemsInWarehouse values for each row. 

The new column is expected to be queried heavily, and you need to be able to index the column. Which Transact-SQL statement should you use? 

A. ALTER TABLE Inventory 

ADD TotalItems AS ItemslnStore + ItemsInWarehouse 

B. ALTER TABLE Inventory 

ADD TotalItems AS ItemsInStore + ItemsInWarehouse PERSISTED 

C. ALTER TABLE Inventory 

ADD TotalItems AS SUM(ItemsInStore, ItemsInWarehouse) PERSISTED 

D. ALTER TABLE Inventory 

ADD TotalItems AS SUM(ItemsInStore, ItemsInWarehouse) 

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Q16. You administer a Microsoft SQL Server 2012 database. 

The database contains a table named Employee. Part of the Employee table is shown in the exhibit. (Click the Exhibit button.) 

Unless stated above, no columns in the Employee table reference other tables. 

Confidential information about the employees is stored in a separate table named EmployeeData. One record exists within EmployeeData for each record in the Employee table. 

You need to assign the appropriate constraints and table properties to ensure data integrity and visibility. 

On which column in the Employee table should you create a Primary Key constraint for this table? 

A. DateHired 

B. Departments 

C. EmployeeID 

D. EmployeeNum 

E. FirstName 

F. JobTitle 

G. LastName 

H. MiddleName 

I. ReportsToID 

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Q17. Your database contains a table named SalesOrders. The table includes a DATETIME column named OrderTime that stores the date and time each order is placed. There is a non-clustered index on the OrderTime column. 

The business team wants a report that displays the total number of orders placed 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 SalesOrders 

WHERE OrderTime = CONVERT(DATE, GETDATE()) 

B. SELECT COUNT(*) FROM SalesOrders 

WHERE OrderTime = GETDATE() 

C. SELECT COUNT(*) FROM SalesOrders 

WHERE CONVERT(VARCHAR, OrderTime, 112) = CONVERT(VARCHAR, GETDATE(I, 

112)) 

D. SELECT COUNT(*) FROM SalesOrders 

WHERE OrderTime >= CONVERT(DATE, GETDATE()) 

AND OrderTime < DATEADD(DAY, 1, CONVERT(DATE, GETDATE())) 

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