70-461 Real Exam Dumps Questions and answers 11-20

Get Full Version of the Exam
http://www.EnsurePass.com/70-461.html

Question No.11

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?

  1. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount

    FROM (SELECT SalesOrderId, SalesAmountFROM DomesticSalesOrders

    UNION ALL SELECT

    SalesOrderId, SalesAmountFROM

    InternationalSalesOrder s ) AS p

  2. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS TotalSalesAmount

    FROM (SELECT SalesOrderId, SalesAmountFROM DomesticSalesOrders

    UNION SELECT

    SalesOrderId, SalesAmountFROM

    InternationalSalesOrder s ) AS p

  3. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS

    TotalSalesAmountFROM DomesticSalesOrders UNION SELECT COUNT(*) AS

    NumberOfSales, SUM(SalesAmount) AS

    TotalSalesAmountFROM InternationalSalesOrders

  4. SELECT COUNT(*) AS NumberOfSales, SUM(SalesAmount) AS

TotalSalesAmountFROM DomesticSalesOrders UNION ALL SELECT COUNT(*) AS NumberOfSales,

SUM(SalesAmount) AS

TotalSalesAmountFROM InternationalSalesOrders

Correct Answer: A

Explanation:

http://msdn.microsoft.com/en-us/library/ms180026.aspx http://blog.sqlauthority.com/2009/03/11/sql-server-difference-between-union-vs-union-all-

optimal-performance-comparison/

Question No.12

You are a database developer at an independent software vendor. You create stored procedures that contain proprietary code. You need to protect the code from being viewed by your customers. Which stored procedure option should you use?

  1. ENCRYPTBYKEY

  2. ENCRYPTION

  3. ENCRYPTBYPASSPHRASE

  4. ENCRYPTBYCERT

Correct Answer: B

Explanation:

http://technet.microsoft.com/en-us/library/bb510663.aspx http://technet.microsoft.com/en-us/library/ms174361.aspx http://msdn.microsoft.com/en-us/library/ms187926.aspx http://technet.microsoft.com/en-us/library/ms190357.aspx http://technet.microsoft.com/en-us/library/ms188061.aspx

Question No.13

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?

  1. CREATE TABLE DocumentStore ( [Id] INT NOT NULL PRIMARY KEY, [Document]

    VARBINARY(MAX) NULL

    )GO

  2. CREATE TABLE DocumentStore ( [Id] hierarchyid,[Document] NVARCHAR NOT NULL

    )GO

  3. CREATE TABLE DocumentStore AS FileTable

  4. CREATE TABLE DocumentStore ( [Id] [uniqueidentifier] ROWGUIDCOL NOT NULL UNIQUE,[Document]

VARBINARY(MAX) FILESTREAM NULL

)GO

Correct Answer: A

Explanation:

http://msdn.microsoft.com/en-us/library/gg471497.aspx http://msdn.microsoft.com/en-us/library/ff929144.aspx

Question No.14

You administer a Microsoft SQL Server 2012 database that contains a table named OrderDetail. You discover that the NCI_OrderDetail_CustomerID non-clustered index is fragmented. You need to reduce fragmentation. You need to achieve this goal without taking the index offline. Which Transact-SQL batch should you use?

  1. CREATE INDEX NCI_OrderDetail_CustomerI D ON

    OrderDetail.CustomerID WITH DROP EXISTING

  2. ALTER INDEX

    NCI_OrderDetail_CustomerID ON OrderDetail.CustomerID REORGANIZE

  3. ALTER INDEX ALL ON OrderDetail REBUILD

  4. ALTER INDEX

NCI_OrderDetail_CustomerID ON OrderDetail.CustomerID REBUILD

Correct Answer: B

Explanation:

http://msdn.microsoft.com/en-us/library/ms188388.aspx

Question No.15

You develop a Microsoft SQL Server 2012 database. The database is used by two web applications that access a table named Products. You want to create an object that will prevent the applications from accessing the table directly while still providing access to the required data. You need to ensure that the following requirements are met:

  • Future modifications to the table definition will not affect the applications#39; ability to access data.

  • The new object can accommodate data retrieval and data modification.

  • You need to achieve this goal by using the minimum amount of changes to theexisting applications.

What should you create for each application?

  1. views

  2. table partitions

  3. table-valued functions

  4. stored procedures

Correct Answer: A

Question No.16

You develop a Microsoft SQL Server 2012 database. You need to create a batch process that meets the following requirements:

  • Returns a result set based on supplied parameters.

  • Enables the returned result set to perform a join with a table.

Which object should you use?

  1. Inline user-defined function

  2. Stored procedure

  3. Table-valued user-defined function

  4. Scalar user-defined function

Correct Answer: C

Question No.17

You develop a Microsoft SQL Server 2012 database. You need to create and call a stored procedure that meets the following requirements:

Accepts a single input parameter for CustomerID. Returns a single integer to the calling application. Which Transact-SQL statement or statements should you use? (Each correct answer presents part of the solution. Choose all that apply.)

  1. CREATE PROCEDURE dbo.GetCustomerRating @Customer INT,

    @CustomerRatIng INT OUTPUT AS SET NOCOUNT ON SELECT @CustomerRating = CustomerOrders/CustomerValue FROM Customers WHERE CustomerID = @CustomerID RETURN GO

  2. EXECUTE dbo.GetCustomerRatIng 1745

  3. DECLARE

    @customerRatingBycustomer INT DECLARE @Result INT EXECUTE @Result = dbo.GetCustomerRating 1745 , @CustomerRatingSyCustomer

  4. CREATE PROCEDURE

    dbo.GetCustomerRating @CustomerID INT,

    @CustomerRating INT OUTPUT AS SET NOCOUNT ON SELECT @Result =

    CustomerOrders/CustomerValue FROM Customers WHERE CustomerID = @CustomeriD RETURN @Result GO

  5. DECLARE

    @CustomerRatIngByCustcmer INT EXECUTE dbo.GetCustomerRating @CustomerID = 1745,

    @CustomerRating =

    @CustomerRatingByCustomer OUTPUT

  6. CREATE PROCEDURE

dbo.GetCustomerRating @CustomerID INT AS DECLARE @Result INT SET NOCOUNT ON SELECT @Result =

CustomerOrders/CustomerVaLue FROM Customers WHERE Customer= = @CustomerID R ETURNS @Result

Correct Answer: AE

Question No.18

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?

  1. HOLDLOCK

  2. ROWLOCK

  3. XLOCK

  4. UPDLOCK

  5. TABLOCK

Correct Answer: E

Explanation:

http://technet.microsoft.com/en-us/library/ms189857.aspx

http://msdn.microsoft.com/en-us/library/ms187373.aspx

Question No.19

You use a Microsoft SQL Server 2012 database that contains two tables named SalesOrderHeader and SalesOrderDetail. The indexes on the tables are as shown in the exhibit. (Click the Exhibit button.)

image

You write the following Transact-SQL query:

image

You discover that the performance of the query is slow. Analysis of the query plan shows table scans where the estimated rows do not match the actual rows for SalesOrderHeader by using an

unexpected index on SalesOrderDetail. You need to improve the performance of the query. What should you do?

  1. Use a FORCESCAN hint in the query.

  2. Add a clustered index on SalesOrderId in SalesOrderHeader.

  3. Use a FORCESEEK hint in the query.

  4. Update statistics on SalesOrderId on both tables.

Correct Answer: D

Explanation:

http://msdn.microsoft.com/en-us/library/ms187348.aspx

Question No.20

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?

  1. SELECT COUNT(*)FROM Purchases WHERE PurchaseTime = CONVERT(DATE, GETDATE())

  2. SELECT COUNT(*)FROM Purchases WHERE PurchaseTime = GETDATE()

  3. SELECT COUNT(*)FROM Purchases WHERE CONVERT(VARCHAR,

    PurchaseTime, 112) = CONVERT(VARCHAR, GETDATE(), 112)

  4. SELECT COUNT(*)FROM Purchases WHERE PurchaseTime gt;=

CONVERT(DATE, GETDATE()) AND PurchaseTime lt; DATEADD(DAY, 1,

CONVERT(DATE, GETDATE()))

Correct Answer: D

http://technet.microsoft.com/en-us/libr ary/ms181034.aspx

Get Full Version of 70-461 Dumps

Tagged

Leave a Reply

Your email address will not be published. Required fields are marked *