You are an enterprise application developer. You are creating a medical application that permits surgeons to review previous recordings of surgeries. The application must meet the following requirements:

Surgeons must be able to view several videos concurrently. Users send only necessary portions of the files across the network. Transmission of videos to the application might be interrupted.
Videos must play instantly.
Users must be able to fast-forward, reverse, pause, and stop the video.

You need to ensure the application meets these requirements. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

You are an enterprise application developer. You create an order processing application.
The application must meet the following requirements:

The order is scheduled for delivery if all products are available.
The order is back-ordered if any one product is not available.
The customer can cancel the back-ordered order.
The order is scheduled for delivery if the customer does not cancel it.
The order is closed after delivery.

You need to select the state diagram that translates the requirements. Which diagram should you choose?

You are an enterprise application developer. You are creating a three-tier application. The business layer contains 10 business functions. These business functions write messages to message queues and update records in a Microsoft SQL Server database. You need to identify the transaction mechanism for these business functions to group both the activities together as one atomic transaction unit. Which transaction mechanism should you choose?

You are an enterprise application developer. You are designing a Web-based application to maintain appointment details.
You consider implementing the following steps to delete an appointment:

Enter a date range or a client ID, or enter a date range and a client ID to get a list of appointments.
Click the Appointment hyperlink. The appointment details are retrieved and displayed.
Click the Delete button.

You need to analyze the requirements and recommend stored procedures. Which three stored procedures should you recommend? (Each correct answer presents part of the solution. Choose three.)

You are an enterprise application developer. You are creating an application. The application uses different database products for different customers. You need to ensure maximum reuse of the code that is available in the different layers of the application. You also need to ensure that the application uses the unique features of each database product. Which layer should you create for each database product?

You are an enterprise application developer. You are creating an application for the sales department. Users in the sales department are occasionally connected to the network. Users enter orders through a smart client interface. The orders are sent to a business component that is installed on an application server. The business component updates the orders. You need to ensure that the orders are reliably delivered to the server. Which technology should you choose?

You are an enterprise application developer. Your company operates a Microsoft Windows-based
client application. The application is deployed to 50 client computers on the network. The application uses a separate class library as a data access layer. The data access layer is currently deployed to the application folder of the client application. It is time consuming to deploy
new versions of the data access layer. You need to evaluate the current physical design of the application and recommend changes to speed up deployment of new versions of the data access layer. What should you recommend?

You are an enterprise application developer. Your company has a Web-based application that runs on a single Web server. Session information is currently being stored by using the default session mode. You are redesigning the application to run in a Web farm. You must ensure that the failure of any single server does not make session information unavailable. A developer in your team recommends using the default session mode on each server in the Web farm. You need to evaluate this recommendation. What should you conclude?

You are an enterprise application designer. You are designing a three-tier enterprise application. The application currently consists of a business layer and a data layer.

The application must perform the following tasks:

Support a smart client interface and a Web client interface. Achieve maximum reuse between the smart client interface and the Web client interface.
Reduce code duplication.

The systems analyst recommends adding a UI layer to perform the required tasks. You need to evaluate this recommendation. What should you conclude?

You are an enterprise application developer. You are creating a human resource application.
You identify the following relationships between the business objects:

A manager is an employee.
An executive is an employee.
An employee works for a company.

You need to translate only these relationships into a class diagram. Which diagram should you choose?