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Which three tasks should you perform?

You are an enterprise application developer. You are creating a component that will be deployed as part of a class library. The component must meet the following specifications:

The interface of the component must be accessible to components outside the hosting assembly.
The interface of the component must be interoperable with components written in any other .NET Framework languages.
The implementation of the component cannot be expanded upon by a derived class.

You need to design the interface of the component.
Which three tasks should you perform? (Each correct answer presents part of the solution.
Choose three.)

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 design and development of application frameworks.
You are currently developing a Microsoft Windows Forms application. You used Microsoft Visual Studio 2005 Team Edition for Software Developers. This Windows Forms application that you are developing, when completed will allow users to access data on the Domain.com mainframe. This data access will happen as follows: A Microsoft .NET Remoting component accesses the mainframe, and the application connects to the Remoting component via Transmission Control Protocol (TCP) channel.
You need to keep in mind that there is a performance requirement that the application should not perform excessive and unnecessary security checks. A performance monitoring solution that will be put in place will consists a measuring the Total Runtime Checks and Stack Walk Depth performance counters in the .NETCLR Security category.
You need to make a decision as to whether the monitoring solution is correct.

What conclusion can you draw?

Which inbound TCP port should you open on the firewall?

You install a Groove Server Manager server and a Groove Server Relay server. A firewall separates your network and the Internet.

You need to configure the firewall to support the following requirements:

Groove must attempt the least amount of connections to the Groove servers.

Groove must be able to communicate with the Groove servers from the Internet.

Groove must be able to communicate with the Groove servers when connecting from the local area network.

Which inbound TCP port should you open on the firewall?

What should you do?

You are an enterprise application developer. You review the design of a component. The component processes billing for an online store application. The application is developed by using
ASP.NET 2.0. The component must be highly available during business hours. You need to ensure that the component meets the following requirements: It reads all orders that must be billed. It sends an e-mail notification to the users.It receives confirmation for credit card and bank account transactions. What should you do?

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 application frameworks.
You are currently developing a Microsoft Windows Forms monitoring application for Domain.com. This application is destined to read data in a Microsoft SQL Server 2005 database and display it graphically on a form. All Domain.com users need to be able to:
1. choose the refresh rate for displaying data
2. choose an interval in multiples of one second
To this end you need to reuse a component to meet these requirements without requiring excessive coding.

What should you do?

Which code segment should you use?

You are developing an application that runs by using the credentials of the end user. Only users who are members of the Administrator group get permission to run the application. You write the following security code to protect sensitive data within the application.

Dim blnAdmin As Boolean = False
Dim objRole As WindowsBuiltInRole = _
WindowsBuiltInRole.Administrator
If blnAdmin = False Then
Throw New Exception(“User not permitted”)
End If

You need to add a code segment to this security code to ensure that the application throws an exception if a user is not a member of the Administrator group. Which code segment should you use?