Searching for "By"

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.

Report Error

View Answer Report Error Discuss

Q:

You are creating an ASP.NET page for a travel service. The page contains a CheckBoxList control that contains travel destinations. Customer can select favorite destinations to receive weekly e-mail updates of travel packages.

 

The CheckBoxList control is bound to a database table of possible destinations. Each destination is ranked according to its popularity. You modify the page to sort the destination list by rank, from the most popular to the least popular. The list has three columns.

 

You want the most popular destination to be on the top row of the check box list at run time. Which property setting should you use for the CheckBoxList control?

A) Set the RepeatDirection property to Vertical. B) Set the RepeatDirection property to Horizontal.
C) Set the RepeatLayout property to Flow. D) Set the RepeatLayout property to Table.
 
Answer & Explanation Answer: B) Set the RepeatDirection property to Horizontal.

Explanation:

The DataList.RepeatDirection property is used to get or select whether the DataList control displays vertically or horizontally. If this property is set to RepeatDirection.Horizontal, the items in the list are displayed in rows loaded from left to right, then top to bottom, until all items are rendered.

 

Incorrect Answers:

A: If the DataList.RepeatDirection property is set to RepeatDirection.Vertical, the items in the list are displayed in columns loaded from top to bottom, then left to right, until all items are rendered.


C, D:DataList.RepeatLayout Property gets or sets whether the control is displayed in a table or flow layout. It does not affect the order in which the items are displayed.

Report Error

View Answer Report Error Discuss

Q:

You use Visual Studio .NET to create an assembly, called XYZAssembly, that will be used by other applications, including a standard COM client application.


You must deploy your assembly on the COM application to a client computer. You must ensure that the COM application can instantiate components within the assembly as COM components.

What should you do?

A) Create a strong name of the assembly by using the Strong Name tool (Sn.exe). B) Generate a type library for the assembly by using the Type Library Importer (Tlbimp.exe). Register the file on the client computer.
C) Generate a registry file for the assembly by using the Assembly Registration tool (Regasm.exe) Register the file on the client computer. D) Deploy the assembly to the global assembly cache on the client computer. Add a reference to the assembly in the COM client application.
 
Answer & Explanation Answer: C) Generate a registry file for the assembly by using the Assembly Registration tool (Regasm.exe) Register the file on the client computer.

Explanation:

The Assembly Registration tool reads the metadata within an assembly and adds the necessary entries to the registry, which allows COM clients to create .NET Framework classes transparently. Once a class is registered, any COM client can use it as though the class were a COM class..

 

Incorrect Answers:

Option A:
The Strong Name tool helps sign assemblies with strong names.


Option B:
The Type Library Importer, tlbimp.exe, converts the type definitions found within a COM type library into equivalent definitions in a common language runtime assembly. It would not be useful in this scenario however.


Option D:
This would not allow the COM application to use the class.

Report Error

View Answer Report Error Discuss

Q:

You create an assembly by using Visual Studio .NET. The assembly is responsible for writing and reading order entry information to and from an XML data file. The assembly also writes and reads values to and from the Windows registry while it is being consumed.

 

The assembly will be distributed to client computers by using your company, XYZ, intranet. All client computers are configured to implement the default .NET security policy.

 

You need to implement security in the assembly. What should you do?

A) Implement declarative security and execute the permission demand to allow access to the file system and Windows registry. B) Implement declarative security and execute the minimum permission request to allow access to the file system and Windows registry.
C) Implement imperative security and execute the permission demand to allow access to the file system and Windows registry. D) Implement imperative security and execute the minimum permission request to allow access to the file system and Windows registry.
 
Answer & Explanation Answer: B) Implement declarative security and execute the minimum permission request to allow access to the file system and Windows registry.

Explanation:

You can use declarative code access security to request permissions for the entire assembly. SecurityAction flags that can be specified in an assembly-wide directive. When SecurityAction.RequestMinimum is specified, it makes a request to the common language runtime to be granted the requested permission. If the requested permission is not granted by the security policy, the assembly will not execute. A  Security Action.RequestOptional is similar, but the assembly will still run even if the requested permission is not granted. Specifying security Action. RequestRefuse requests that the assembly be denied the specified permission.

 

You must use the Assembly (assembly) directive when specifying these actions as follows: 

 

Option A:

There are only three Security actionAttributes targets for an assembly: RequestMinimumAssembly, RequestOptionalAssembly, and RequestRefuseAssembly. 

 

 Option C, D:

Imperative security does not work well to configure security for an entire assembly. In imperative security, permission to execute is demanded at run time.

Report Error

View Answer Report Error Discuss

Q:

You use Visual Studio .NET to create a Windows-based application. The application includes a form named XYZProcedures (EXP). EXP allows users to enter very lengthy text into a database. When users click the Print button located on EXP, this text must be printed by the default printer.

 

You implement the printing functionality by using the native .NET System Class Libraries with all default settings.

 

Users report that only the first page of the text is being printed.

How should you correct this problem?

A) In the BeginPrint event, set the HasMorePages property of the PrintEventArgs object to True. B) In the EndPrint event, set the HasMorePages property of the PrintEventArgs object to True.
C) In the PrintPage event, set the HasMorePages property of the PrintPageEventArgs object to True. D) In the QueryPageSettings event, set the HasMorePages property of the QueryPageSettingEventArgs object to True.
 
Answer & Explanation Answer: C) In the PrintPage event, set the HasMorePages property of the PrintPageEventArgs object to True.

Explanation:

PrintDocument.PrintPage Event occurs when the output to print for the current page is needed. This event has the HasMorePages property which gets or sets a value indicating whether an additional page should be printed.

Report Error

View Answer Report Error Discuss

Q:

You are a developer for a XYZ Inc that provides free software over the Internet. You are developing en e-mail application that users all over the world can download.

 

The application displays text strings in the user interface. At run time, these text strings must appear in the language that is appropriate to the locale setting of the computer running the application.

 

You have resources to develop versions of the application for only four different cultures.You must ensure that your application will also be usable by people of other cultures.
How should you prepare the application for deployment?

A) Package a different assembly for each culture. B) Package a different executable file for each culture.
C) Package a main assembly for source code and the default culture. Package satellite assemblies for the other cultures. D) Package a main assembly for source code. Package satellite assemblies for each culture.
 
Answer & Explanation Answer: C) Package a main assembly for source code and the default culture. Package satellite assemblies for the other cultures.

Explanation:

When you build a project, the resource files are compiled and then embedded in satellite assemblies, or assemblies which contain only the localized resources. The fallback resources are built into the main assembly, which also contains the application code.

Report Error

View Answer Report Error Discuss

Q:

You use Visual Studio .NET to develop a Windows-based application that interacts with a Microsoft SQL Server database. Your application contains a form named CustomerForm.

 You add the following design-time components to the form:

• SqlConnection object named XYZConnection.
• SqlDataAdapter object named XYZDataAdapter.
• DataSet object named XYZDataSet.
• Five TextBox controls to hold the values exposed by XYZDataSet.


At design time, you set the DataBindings properties of each TextBox control to the appropriate column in the DataTable object of XYZDataSet. When you test the application, you can successfully connect to the database. However, no data is displayed in any text boxes.

You need to modify your application code to ensure that data is displayed appropriately. Which behavior should occur while the CustomerForm.Load event handler is running?

A) Execute the BeginInit method of XYZDataSet. B) Execute the Open method of XYZConnection.
C) Execute the FillSchema method of XYZDataAdapter and pass in XYZDataSet. D) Execute the Fill method of XYZDataAdapter and pass in XYZDataSet.
 
Answer & Explanation Answer: D) Execute the Fill method of XYZDataAdapter and pass in XYZDataSet.

Explanation:

Dataset is a container; therefore, you need to fill it with data. You can populate a dataset by calling the Fill method of a data adapter.

Report Error

View Answer Report Error Discuss

Q:

You responsible for maintaining an application that was written by a former colleague at XYZ.

 

The application reads from and writes to log files located on the local network. The original author included the following debugging code to facilitate maintenance:

try {
Debug.WriteLine(“Inside Try”);
throw(new IOException());}
catch (IOException e) {
Debug.WriteLine (“IOException Caught”);}
catch (Exception e) {
Debug.WriteLine(“Exception Caught”);}.
finally {
Debug.WriteLine (“Inside Finally”);}
Debug.WriteLine (“After End Try”);

 

Which output is produced by thus code?

A) Inside Try Exception Caught IOException Caught Inside Finally After End Try B) Inside Try Exception Caught Inside Finally After End Try
C) Inside Try IOException Caught Inside Finally After End Try D) Inside Try IOException Caught Inside Finally
 
Answer & Explanation Answer: C) Inside Try IOException Caught Inside Finally After End Try

Explanation:

First the try code runs. Then one single exception, the IOException occurs, not two exceptions.Then the Finally code segments executes. After Finally code bas been executed normal application resumes at the next line after the line that called the error. In this case, the After End Try code runs.

Report Error

View Answer Report Error Discuss