You work as the Microsoft.NET developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. The development and deployment of Extensible Markup Language (XML) Web Services forms part of your responsibilities at Domain.com.
The following exhibit illustrates a class definition:

public class MarketService
{
internal string ObtainMarket(string mobilePhoneNumber)
{
return String.Empty;
}
}

You received instruction to modify this class so that it becomes a Web service, a Web service that will allow internal applications to invoke ObtainMarket as a Web method. You need to ensure that the Web method does not make use of session state and that it must make use of the default namespace.

What should you do?

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. Your responsibilities at Domain.com include the support and deployment of applications. You are currently developing an enterprise solution that consists of a Microsoft ASP.NET Web application and a Microsoft .NET Remoting component. The Web application connects to the .NET Remoting component via inter-process communication (IPC) channel. A Web server named Certkiller -WS01 will be used for the deployment of the enterprise solution. The following exhibit illustrates the production Web.config file configuration:

<configuration>
<system.web>
<customErrors mode=”RemoteOnly”/>
</system.web>
</configuration>
One requirement that should be kept in mind is that one should not be able to view specific error messages when accessing the Web application from the network or the Internet. Following is a list of the aspects included in the deployment design:
1. Deploy Microsoft Internet Security and Administration (ISA) Server to Certkiller -WS01.
2. Deploy the Web application to Certkiller -WS01.
3. Configure ISA server with a Web publishing rule to redirect requests to staging.fi-print.com to 127.0.0.1.

You now need to make a decision as to whether the design meets the requirements.

What conclusion can you draw?

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. Your responsibilities at Domain.com include the testing and stabilization of applications. You and the development team is currently busy developing an enterprise resource planning solution for Domain.com. The logical design for this application consists of a Microsoft ASP.NET Web application, a Microsoft .NET Remoting component, and a Microsoft Windows service. The Microsoft Windows service hosts the .NET Remoting component which is a marshal-by-reference component. The purpose of this component is to read and update the performance counters. The Web application is designed to access the component via Transmission Control Protocol (TCP) channel. The Web application is hosted on a Web server and the .NET Remoting component is hosted on an application server. A Developer named Mia Hamm has been instructed to perform the integration testing of the component. Following is the step-by step procedure that Mia Hamm followed during the integration testing:
1. Mia Hamm adds the component to an ASP.NET Web application project.
2. Mia Hamm does not configure Remoting in the Web application.
3. Mia Hamm accesses the Web application and invokes methods on the component.
4. The method calls fail.
You need to make a decision as to whether the test results can be considered valid.

What conclusion can you draw?

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. Your responsibilities at Domain.com include the testing and stabilization of applications. Domain.com operates in the security and surveillance environment. You are currently developing a video surveillance application for Domain.com.
You perform a code review of the following class:

public class Camera
{
public Camera GetInstance()
{
return _null;
}
}

This class is supposed to make use of the Singleton design pattern to control access to a physical video camera. You need to modify the Camera class.
What should you do? (Choose the correct code segment.)

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. Your responsibilities at Domain.com include the design and development of applications. You are currently developing an Extensible Markup Language (XML) Web service that when completed will allow client applications the ability to download movie clips. One of the requirements that should be met is that all Web service clients must be able to use the Web service. You should also keep in mind that you should optimize the message transfer for some of the movie clips since fifty percent of the movie clips are quite large.
To this end you decide to make use of Microsoft Visual Studio 2005 and Web Services Enhancements (WSE) 3.0 to develop the Web service. Now you need to modify the Web.config file to meet the requirements.

What should you do? (Choose the correct configuration.)

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. Your responsibilities at Domain.com include the design and development of applications. You are currently developing a business logic component that is used in a line-of-business (LOB) application. The business logic component calls a Web method named SeeCustomer in an Extensible Markup Language (XML) Web service. The SeeCustomer Web method throws an exception of a type SoapExtension in the event of the specified customer being non-existent. Now, when this exception is thrown, you must call a Web method named NewCustomer. To this end you need to implement the appropriate exception handling mechanism to meet this requirement.

What should you do?

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. Your responsibilities at Domain.com include the design and development of applications. Domain.com operates as the Emergency unit of the Traffic Department. You are currently busy implementing a Microsoft .NET Remoting component. This component will be used in the traffic control environment. The component will allow the traffic department to guide all traffic officers on duty to the available alternative routes during emergencies. As such the component must meet the following requirements:
1. A specific instance of the component must be allowed to control access to the navigational system on one traffic officer’s vehicle.
2. The component must be instantiated only once while the traffic officer’s navigational system is being controlled.
3. The component must be hosted on a server that is separate from the application. To this end the design suggests making us of single-call activation over Transmission Control Protocol (TCP). You are now required to decide whether or not the design meets the requirements.

What conclusion can you draw?

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. The design of applications forms part of your responsibilities at Domain.com. Domain.com operates as an information bureau for the supply of information to financial institutions such as banks.
You are currently busy implementing a solution for Domain.com that will, when completed, consist of three Microsoft ASP.NET Web applications. These applications will allow the Domain.com customer banks to manage credit-, investment- and current accounts. All three applications are destined to be hosted on a server that is configured with Microsoft Internet Information Services (IIS) 6.0.
Included in the Physical design is the following IIS directory structure:
1. Default Web Site (D:\Inet\wwwroot)
2. Credit Portal (D:\FinanceWeb\Credit)
3. Investment Portal (D:\FinanceWeb\Investment)
4. Current Portal (D:\FinanceWeb\Current)
In your solution you are required to display the application on pages. And images need to be reused across all three applications. To this end you need to select the best location to store these images to ensure that it can be used across all three applications.

What should you do?

You work as the Enterprise application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. The design of applications forms part of your responsibilities at Domain.com. Domain.com operates as a financial institution.
You have been asked to make a recommendation in terms of the technological design to meet the Domain.com requirements. The plan is to develop a component for Domain.com. And this component is to provide the business logic for the management of customer accounts. The component should meet certain technical requirements to serve the Domain.com needs. Following is a list of these requirements:
1. Instantiated classes must be reused by multiple threads.
2. Method calls must be rolled back in the event of a failure occurring.
3. Only certain users must have the ability to call certain methods. In your recommendation you should mention the appropriate technology that will meet these technological requirements.

What should you do?

You work as the Microsoft.NET developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All servers in the domain run Windows Server 2003. The development and deployment of client applications forms part of your responsibilities at Domain.com. After receiving the instruction, you complied and have just created a private message queue on an application server. You have configured the message queue in such a way than whenever a message arrives in the queue, you will need to simultaneously run two executables to process the message. To this end you need to create a rule or more rules and triggers to ensure that these two executables run simultaneously when a message arrives in the queue.

What should you do?