What to do with 70 461 practice test

Q1. CORRECT TEXT

You have a database 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.

Return the most recent orders first.

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.

Return the order date in a column named MostRecentOrderDate that appears as

the last column in the report. The solution must support the ANSI SQL-99 standard.

Which code segment should you use?

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

Answer:

Q2. 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.

Answer:

78. 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 the root cause is a query against a frequently updated table that has a clustered index. The query returns four columns: three columns in its WHERE clause contained in a non-clustered index and one additional column.

You need to optimize the statement.

What should you do?

A. Add a HASH hint lo 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 FORCESCAN hint to the Attach query.

G. Add a columnstore index to cover the query.

H. Enable the optimize for ad hoc workloads option.

I. Cover the unique clustered index with a columnstore index. 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.

Q3. You administer several Microsoft SQL Server 2012 database servers. Merge replication has been configured for an application that is distributed across offices throughout a wide area network (WAN). Many of the tables involved in replication use the XML and varchar (max) data types. Occasionally, merge replication fails due to timeout errors. You need to reduce the occurrence of these timeout errors. What should you do?

A. Set the Merge agent on the problem subscribers to use the slow link agent profile.

B. Create a snapshot publication, and reconfigure the problem subscribers to use the snapshot publication.

C. Change the Merge agent on the problem subscribers to run continuously.

D. Set the Remote Connection Timeout on the Publisher to 0.

Answer: A

Q4. CORRECT TEXT

You have a database 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.

Which code segment should you use?

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

Answer:

Q5. A table named Profits stores the total profit made each year within a territory. The Profits table has columns named Territory, Year, and Profit. You need to create a report that displays the profits made by each territory for each year and its preceding year. Which Transact-SQL query should you use?

A. SELECT Territory, Year, Profit, LAG(Profit, 1, 0) OVER(PARTITION BY Year ORDER BY Territory) AS NextProfit FROM Profits

B. SELECT Territory, Year, Profit, LAG(Profit, 1, 0) OVER(PARTITION BY Territory ORDER BY Year) AS NextProfit FROM Profits

C. SELECT Territory, Year, Profit, LEAD(Profit, 1, 0) OVER(PARTITION BY Territory ORDER BY Year) AS NextProfit FROM Profits

D. SELECT Territory, Year, Profit, LEAD(Profit, 1, 0) OVER(PARTITION BY Year ORDER BY Territory) AS NextProfit FROM Profits

Answer: B

Q6. 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.

</CUSTOMERS>

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')

Answer: E

Q7. You use Microsoft SQL Server 2012 to develop a database application.

You need to implement a computed column that references a lookup table by using an INNER JOIN against another table.

What should you do?

A. Reference a user-defined function within the computed column.

B. Create a BEFORE trigger that maintains the state of the computed column.

C. Add a default constraint to the computed column that implements hard-coded values.

D. Add a default constraint to the computed column that implements hard-coded CASE statements.

Answer: A

Q8. You use a Microsoft SQL Server 2012 database.

You want to create a table to store Microsoft Word documents.

You need to ensure that the documents must only be accessible via Transact-SQL queries.

Which Transact-SQL statement should you use?

A. CREATE TABLE DocumentStore ( [Id] INT NOT NULL PRIMARY KEY, [Document] VARBINARY(MAX) NULL ) GO

B. CREATE TABLE DocumentStore ( [Id] hierarchyid, [Document] NVARCHAR NOT NULL ) GO

C. CREATE TABLE DocumentStore AS FileTable

D. CREATE TABLE DocumentStore ( [Id] [uniqueidentifier] ROWGUIDCOL NOT NULL UNIQUE, [Document] VARBINARY(MAX) FILESTREAM NULL ) GO

Answer: A

Q9. 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

Q10. 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.)

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 a create a unique constraint?

A. DateHired

B. DepartmentID

C. EmployeelD

D. EmployeeNum

E. FirstName

F. JobTitle

G. LastName

H. MiddleName

I. ReportsToID

Answer: D

70-461 Exam - Querying Microsoft SQL Server 2012