[2016-Jun-NEW]Braindump2go 179q 70-461 Exam Prep Free Download[NQ11-NQ20]

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NEW QUESTION 11 - NEW QUESTION 20:

QUESTION 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?

A.    SELECT COUNT(*) AS
NumberOfSales,
SUM(SalesAmount) AS
TotalSalesAmount
FROM (SELECT SalesOrderId, SalesAmountFROM
DomesticSalesOrders
UNION ALL SELECT
SalesOrderId,
SalesAmountFROM
InternationalSalesOrder s ) AS p
B.    SELECT COUNT(*) AS
NumberOfSales,
SUM(SalesAmount) AS
TotalSalesAmount
FROM (SELECT SalesOrderId, SalesAmountFROM
DomesticSalesOrders
UNION SELECT
SalesOrderId,
SalesAmountFROM
InternationalSalesOrder s ) AS p
C.    SELECT COUNT(*) AS
NumberOfSales,
SUM(SalesAmount) AS
TotalSalesAmountFROM DomesticSalesOrders
UNION SELECT COUNT(*) AS
NumberOfSales,
SUM(SalesAmount) AS
TotalSalesAmountFROM InternationalSalesOrders
D.    SELECT COUNT(*) AS
NumberOfSales,
SUM(SalesAmount) AS
TotalSalesAmountFROM DomesticSalesOrders
UNION ALL SELECT COUNT(*) AS NumberOfSales,
SUM(SalesAmount) AS
TotalSalesAmountFROM InternationalSalesOrders

Answer: A
Explanation:
http://msdn.microsoft.com/en-us/library/ms180026.aspx ¹
http://blog.sqlauthority.com/2009/03/11/sql-server-difference-between-union-vs-union-all-optimal-performance-comparison/ ²

QUESTION 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?

A.    ENCRYPTBYKEY
B.    ENCRYPTION
C.    ENCRYPTBYPASSPHRASE
D.    ENCRYPTBYCERT

Answer: B
Explanation:
http://technet.microsoft.com/en-us/library/bb510663.aspx ³
http://technet.microsoft.com/en-us/library/ms174361.aspx ⁴
http://msdn.microsoft.com/en-us/library/ms187926.aspx ⁵
http://technet.microsoft.com/en-us/library/ms190357.aspx ⁶
http://technet.microsoft.com/en-us/library/ms188061.aspx ⁷

QUESTION 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?

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
Explanation:
http://msdn.microsoft.com/en-us/library/gg471497.aspx ⁸
http://msdn.microsoft.com/en-us/library/ff929144.aspx ⁹

QUESTION 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?

A.    CREATE INDEX NCI_OrderDetail_CustomerI D
ON OrderDetail.CustomerID WITH DROP EXISTING
B.    ALTER INDEX NCI_OrderDetail_CustomerID
ON OrderDetail.CustomerID REORGANIZE
C.    ALTER INDEX ALL
ON OrderDetail REBUILD
D.    ALTER INDEX NCI_OrderDetail_CustomerID
ON OrderDetail.CustomerID REBUILD

Answer: B
Explanation:
http://msdn.microsoft.com/en-us/library/ms188388.aspx ¹⁰

QUESTION 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' 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?

A.    views
B.    table partitions
C.    table-valued functions
D.    stored procedures

Answer: A

QUESTION 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?

A.    Inline user-defined function
B.    Stored procedure
C.    Table-valued user-defined function
D.    Scalar user-defined function

Answer: C

QUESTION 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.)
 

A.    Option A
B.    Option B
C.    Option C
D.    Option D
E.    Option E
F.    Option F

Answer: CF

QUESTION 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?

A.    HOLDLOCK
B.    ROWLOCK
C.    XLOCK
D.    UPDLOCK
E.    TABLOCK

Answer: E
Explanation:
http://technet.microsoft.com/en-us/library/ms189857.aspx ¹¹
http://msdn.microsoft.com/en-us/library/ms187373.aspx ¹²

QUESTION 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.)
 
You write the following Transact-SQL query:
 
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?

A.    Use a FORCESCAN hint in the query.
B.    Add a clustered index on SalesOrderId in SalesOrderHeader.
C.    Use a FORCESEEK hint in the query.
D.    Update statistics on SalesOrderId on both tables.

Answer: D
Explanation:
http://msdn.microsoft.com/en-us/library/ms187348.aspx ¹³

QUESTION 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?

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
http://technet.microsoft.com/en-us/libr ¹⁴ ary/ms181034.aspx

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1. http://msdn.microsoft.com/en-us/library/ms180026.a spx
2. http://blog.sqlauthority.com/2009/03/11/sql-server -difference-between-union-vs-union-all-optimal-per formance-comparison/
3. http://technet.microsoft.com/en-us/library/bb51066 3.aspx
4. http://technet.microsoft.com/en-us/library/ms17436 1.aspx
5. http://msdn.microsoft.com/en-us/library/ms187926.a spx
6. http://technet.microsoft.com/en-us/library/ms19035 7.aspx
7. http://technet.microsoft.com/en-us/library/ms18806 1.aspx
8. http://msdn.microsoft.com/en-us/library/gg471497.a spx
9. http://msdn.microsoft.com/en-us/library/ff929144.a spx
10. http://msdn.microsoft.com/en-us/library/ms188388.a spx
11. http://technet.microsoft.com/en-us/library/ms18985 7.aspx
12. http://msdn.microsoft.com/en-us/library/ms187373.a spx
13. http://msdn.microsoft.com/en-us/library/ms187348.a spx
14. http://technet.microsoft.com/en-us/libr