2013 Latest MCSA 70-461 Exam Questions 6-10

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QUESTION 6
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
Correct Answer: D
Explanation/Reference:
Verified answer as correct.
Reference: http://msdn.microsoft.com/en-us/library/bb510663.aspx
Reference: http://msdn.microsoft.com/en-us/library/ms186329.aspx

QUESTION 7
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
Correct Answer: A
Explanation/Reference:
Verified answer as correct.

QUESTION 8
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.
Correct Answer: C
Explanation/Reference:
Verified answer as correct.
Reference: http://msdn.microsoft.com/en-us/library/ms191432.aspx

QUESTION 9
You are a database developer of a Microsoft SQL Server 2012 database. The database contains a table named Customers that has the following definition:
You need to ensure that the CustomerId column in the Orders table contains only values that exist in the
CustomerId column of the Customer table. Which Transact-SQL statement should you use?
A. ALTER TABLE Orders
ADD CONSTRAINT FX_Orders_CustomerID FOREIGN KEY (CustomerId) REFERENCES
Customer (CustomerId)
B. ALTER TABLE Customer
ADD CONSTRAINT FK_Customer_CustomerID FOREIGN KEY {CustomerID) REFERENCES
Orders (CustomerId)
C. ALTER TABLE Orders
ADD CONSTRAINT CK_Crders_CustomerID
CHECK (CustomerId IN (SELECT CustomerId FROM Customer))
D. ALTER TABLE Customer
ADD OrderId INT NOT NULL;
ALTER TABLE Customer
ADD CONSTRAINT FK_Customer_OrderID FOREIGN KEY (CrderlD) REFERENCES Orders
(CrderlD);
E. ALTER TABLE Orders
ADD CONSTRAINT PK Orders CustomerId PRIMARY KEY (CustomerID)
Correct Answer: A
Explanation/Reference:
Verified answer as correct.
Reference: http://msdn.microsoft.com/en-us/library/ms189049.aspx

QUESTION 10
You have three tables that contain data for dentists, psychiatrists, and physicians. You create a view that is used to look up their email addresses and phone numbers. The view has the following definition:
You need to ensure that users can update only the phone numbers and email addresses by using this view. What should you do?
A. Alter the view. Use the EXPAND VIEWS query hint along with each SELECT statement. B. Create an INSTEAD OF UPDATE trigger on the view.
C. Drop the view. Re-create the view by using the SCHEMABINDING clause, and then create an index on the view.
D. Create an AFTER UPDATE trigger on the view.
Correct Answer: B
Explanation/Reference:
Verified answer as correct.
Reference: http://msdn.microsoft.com/en-us/library/ms187956.aspx

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