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Q:

You are the administrator of a SQL Server 2000 computer. The server contains a database named FinanceData that is used by a client/server application. Each employee has a SQL Server login that the application uses to access the server.Your company hires a new employee named Andrew. You create a SQL Server login named Andrew. You also create a database user named Andrew in the database and grant the database user full permissions in the database.Whenever Andrew runs the client/server application, he receives the following error message: "Invalid object name." Andrew also reports that he cannot access the database by using the application.You need to ensure that Andrew can use the application. Which Transact-SQL statement should you execute?

A) EXEC sp_defaultdb 'Andrew','FinanceData' B) GRANT ALL ON FinanceData TO Andrew
C) EXEC sp_addlogin 'Andrew' D) EXEC sp_grantdbaccess 'FinanceData','Andrew'GOsp_addrolemember 'db_datareader','Andrew'
 
Answer & Explanation Answer: A) EXEC sp_defaultdb 'Andrew','FinanceData'

Explanation:

Error 208 produces the message 'Invalid object name' and occurs when an object that does not exist in the current database is referenced. If the object exists in another database, we must use the USE statement to explicitly switch the context to the correct database or we must qualify the object name with the database name. A third option is to use the sp_defaultdb stored procedure. This stored procedure is used to change the default database for a login. When a client connects with SQL Server, the default database defined for its login becomes the current database without an explicit USE statement. The default database can be defined when the login is added with
sp_addlogin. When executing sp_addlogin the master database is the default database if a database is not specified. In this scenario a SQL Server 2000 login and a user account has been created for Andrew and he has been given database access and the required permissions.

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Q:

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an
application. You use the ADO.NET Entity Framework to model entities. You write the following code segment. (Line numbers are included for reference only.)


01AdventureWorksEntities context = New AdventureWorksEntities
02
03var q = from c in context.Customers
04where c.City == "London"
05orderby c.CompanyName
06select c;


You need to ensure that the application meets the following requirements: "Compares the current values of unmodified properties with values returned from the data source". Marks the property as modified when the properties are not the same. Which code segment should you insert at line 02?

A) context.MergeOption = MergeOption.AppendOnly; B) context.MergeOption = MergeOption.PreserveChanges;
C) context.MergeOption = MergeOption.OverwriteChanges; D) context.MergeOption = MergeOption.NoTracking;
 
Answer & Explanation Answer: B) context.MergeOption = MergeOption.PreserveChanges;

Explanation:
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Q:

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an
application. The application connects to a Microsoft SQL Server 2008 database. The database includes a table named dbo.


Documents that contains a column with large binary dat a. You are creating the Data Access Layer (DAL). You add the following code segment to query the dbo.Documents table. (Line numbers are included for reference only.)


01public void LoadDocuments(DbConnection cnx)
02{
03var cmd = cnx.CreateCommand();
04cmd.CommandText = "SELECT * FROM dbo.Documents";
05...
06cnx.Open();
07
08ReadDocument(reader); }


You need to ensure that data can be read as a stream. Which code segment should you insert at line 07?

A) var reader = cmd.ExecuteReader(CommandBehavior.Default); B) var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly);
C) var reader = cmd.ExecuteReader(CommandBehavior.KeyInfo); D) var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);
 
Answer & Explanation Answer: D) var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);

Explanation:
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Q:

You are creating an ASP.NET page for selling movie tickets. Users select a region, and then they select from a list of cities in that region. The site displays the names and locations of movie theaters in the city selected by the user.


Your company, XYZ Brothers, maintains a list of theaters in a database table that includes the city, name, and street address of each theater. You want to minimize the time required to retrieve and display the list of theater names after a user selects the region and city.

 

 What should you do?

A) Modify the connection string to add the packet size property and set its values to 8192. B) Add the following directive to the page: OutputCache VaryByParam=?
C) Add the following directive to the page: OutputCache VaryByControl=?region;city? D) Modify the connection string to keep your database's connection pool as small as possible.
 
Answer & Explanation Answer: B) Add the following directive to the page: OutputCache VaryByParam=?

Explanation:

You can vary user control output to the cache by specifying the user control name and the parameter. We use the VaryByParam attribute of the  OutputCache  

 

Incorrect Answers: 

 

A: The Packet Size property of the Connection string is the size in bytes of the network packets sed to communicate with an instance of data provider. It is not an optimal property to change to optimize data retrieval.

 

C: The company database does not seem to include a region column.

 

D: If we keep the connection pool small we would allow less simulation connections. However, this would not minimize the required to retrieve and display the data.

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Q:

You create an ASP.NET application to provide corporate news and information to XYZ’s employees. The application is used by employees in New Zealand.


Default.aspx has a Web Form label control named currentDateLabel. The Page.Load event handler for Default.aspx included the following line of code:
currentDateLabel.Text = DateTime.Now.ToString(“D”)


You need to ensure that the data is displayed correctly for employees in New Zealand. What should you do?

A) In the Web.config file for the application, set the culture attribute of the globalization element to en-NZ. B) In the Web.config file for the application, set the uiCulture attribute of the globalization element to en-NZ.
C) In Visual Studio .NET, set the responseEncoding attribute in the page directive for Default.aspx to UTF-8. D) In Visual Studio .NET, save the Default.aspx page for both versions of the application by selecting Advanced Save Options from the File menu and selecting UTF-8.
 
Answer & Explanation Answer: A) In the Web.config file for the application, set the culture attribute of the globalization element to en-NZ.

Explanation:

The culture attribute of the globalization element specifies the default culture for processing incoming Web requests.

 

Incorrect Answers:

 

B: The uiculture attribute of the globalization specifies the default culture for processing locale dependent resource searches. It does not apply in this scenario.

 

C, D: The UTF8Encoding Class class encodes Unicode characters using UCS Transformation Format, 8-bit form (UTF-8). This encoding supports all Unicode character values and surrogates. However, it does not help in displaying data in New Zealand format.

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Q:

You ASP.NET application manages order entry data by using a DataSet object named EXorderEntry. The EXorderEntry object includes two DataTable objects named orderNames and OrderDetails. A ForeignKeyConstraint object named orderDetailsKey is defined between the two DataTable objects.


You attempt to delete a row in orderNames while there are related rows in OrderDetails, and an exception is generated.What is the most likely cause of the problem?

A) The current value of OrderDetails.KeyDeleteRule is Rule.Cascade. B) The current value of OrderDetails.KeyDeleteRule is Rule.SetNull.
C) The current value of OrderDetails.KeyDeleteRule is Rule.SetDefault. D) The current value of OrderDetails.KeyDeleteRule is Rule.None.
 
Answer & Explanation Answer: D) The current value of OrderDetails.KeyDeleteRule is Rule.None.

Explanation:

The rule enumeration indicates the action that occurs when a ForeignKeyConstraint is enforced.None specifies that no action will occur, but exceptions are generated. This is what has occurred in this scenario.

 

Incorrect Answers:

 

A: Cascade specifies that all rows containing that value are also deleted.

B: SetNull specifies that values in all child columns are set to null values.

C: SetDefault specifies that all child columns be set to the default value for the column.

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Q:

You are a Web developer for XYZ. You create an ASP.NET application that accesses sales and marketing data. The data is stored in a Microsoft SQL Server 2000 database on a server named XYZ01.


The company purchases a factory automation software application. The application is installed on XYZ01, where it creates a second instance of SQL Server 2000 named Factory and a database named FactoryDB. You connect to FactoryDB by using Windows Integrated authentication.


You want to add a page to your ASP.NET application to display inventory data from  FactoryDB. You use a SqlConnection object to connect to the database. You need to create a connection string to FactoryDB in the instance of SQL Server named Factory on XYZ01. Which string should you use?

A) ?Server=XYZ01;Data Source=Factory; Initial Catalog=FactoryDB;Integrated Security=SSPI? B) ?Server=XYZ01;Data Source=Factory; Database=FactoryDB;Integrated Security=SSP1?
C) ?Data Source=XYZ01\Factory; Initial Category=Factory; Integrated Security=SSP1? D) ?Data Source=XYZ01\Factory; Database=FactoryDB; Integrated Security=SSP1?
 
Answer & Explanation Answer: D) ?Data Source=XYZ01\Factory; Database=FactoryDB; Integrated Security=SSP1?

Explanation:

The Data Source attribute of the connection string contains the name, instance or network address of the instance of SQL Server to which to connect. In this scenario we are to connect to the Factory Instance on XYZ01 so we use XYZ01\Factory as data source. To specify the database we should either use the Database or the Initial Catalog attribute. Here we use Database=FactoryDB.

 

Incorrect Answers:

 

A, B: There is no Server attribute in the connection string. Instead we should use the Data Source attribute to specify the server and the instance.

 

C: There is no Initial Category attribute in the connection string. We can use Database or the Initial Catalog attribute to specify the database.

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Q:

You develop an inventory management application called XYZManagement that will call a Microsoft SQL Server stored procedure named sp_GetDailyXYZSales. The stored procedure will run a query that returns your daily sales total as an output parameter. This total will be displayed to users in a message box.


Your application uses a SqlCommand object to run sp_GetDailyXYZSales. You write the
following code to call sp_GetDailyXYZSales:
SqlConnection cnn = new SqlConnection(myConnString);
SqlCommand cmd = new SqlCommand(“sp_GetDaily XYZ Sales”, cnn);
cmd.CommandType = CommandType.StoredProcedure;
SqlParameter prm = cmd.Parameters.Add(“@ItemTotal”,SqlDbType.Int);
prm.Direction = ParameterDirection.Output;
cnn.Open();
cmd.ExecuteNonQuery();


Now you must write additional code to access the output parameter. Which code segment should you use?

A) MessageBox.Show(?Total is: ? + cmd.Parameters[?@Output?].Value.ToString()); B) MessageBox.Show(?Total is: ? + cmd.Parameters[?@Output?].ToString());
C) MessageBox.Show(?Total is: ? + cmd.Parameters[?@ItemTotal? D) MessageBox.Show(?Total is: ? + cmd.Parameters[?@ItemTotal?
 
Answer & Explanation Answer: C) MessageBox.Show(?Total is: ? + cmd.Parameters[?@ItemTotal?

Explanation:

The @ItemTotal parameter is declared as an output parameter with SQL Server data type INT.We use the Value property of the SQLParameter class to retrieve the value of this parameter. We must also convert the INT value to a string value with the ToString method. We then supply this string to the MessageBox.Show method. 

 

Incorrect Answers


Option A, B:
The @ItemTotal parameter is the output parameter. Using @Output this way is incorrect. Output is a keyword and no variable named @Output has been declared.


Option D:
We must use the Value method to retrieve the value of the parameter..

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