pass4sure microsoft mcpd 70-549(CSharp) v2.83

PRO:Design & Develop Enterprise Appl by Using MS.NET Frmwk : 70-549(CSharp) Exam

Product DescriptionExam Number/Code: 70-549(CSharp)
Exam Name: PRO:Design & Develop Enterprise Appl by Using MS.NET Frmwk

“PRO:Design & Develop Enterprise Appl by Using MS.NET Frmwk”, also known as 70-549(CSharp) exam, is a Microsoft certification. With the complete collection of questions and answers, Pass4sure has assembled to take you through 90 Q&As to your 70-549(CSharp) Exam preparation. In the 70-549(CSharp) exam resources, you will cover every field and category in MCPD helping to ready you for your successful Microsoft Certification.
Exam news
This Professional Developer (PRO) exam, Exam 70-549: PRO: Designing and Developing Enterprise Applications by Using the Microsoft .NET Framework, became available on May 15, 2006.

Audience profile
Candidates for this exam work on a team in a medium or large development environment that uses Microsoft Visual Studio .NET 2003 Enterprise Developer or Visual Studio 2005. Candidates should have at least two years of experience developing Microsoft Windows or Web-based applications by using the Microsoft .NET Framework. Candidates should have a working knowledge of Visual Studio 2005.

An enterprise application developer can operate as a Microsoft Windows-based or Web-based client application developer and can develop middle-tier data or business logic components. Candidates should have at least three to five years of on-the-job experience dedicated to enterprise application development.

Candidates should have worked in the following phases in the application life cycle:

• Technical envisioning and planning

• Design and development

• Stabilizing and releasing

Credit toward certification
When you pass Exam 70-549: PRO: Designing and Developing Enterprise Applications by Using the Microsoft .NET Framework, you earn credit toward the following certification:

• Microsoft Certified Professional Developer: Enterprise Applications Developer

Code languages
When the exam begins, you can choose the programming language in which the code segments will appear. The available code languages for this exam are:

• Microsoft Visual Basic 2005

• Microsoft Visual C# 2005

• Microsoft Visual C++ 2005

Preparation tools and resources
To help you prepare for this exam, Microsoft Learning recommends that you have hands-on experience with the product and that you use the following training resources. These training resources do not necessarily cover all of the topics listed in the “Skills measured” section.

Classroom training Microsoft E-Learning Microsoft Press books Practice tests
There is no classroom training currently available.
There is no Microsoft E-Learning training currently available.
MCPD Self-Paced Training Kit (Exams 70-549): Designing and Developing Enterprise Applications Using the Microsoft .NET Framework

Debugging Microsoft .NET 2.0 Applications

CLR via C#: Applied Microsoft .NET Framework Programming, Second Edition
MeasureUp (Measureup.com)

Self Test Software (Selftestsoftware.com)

Microsoft online resources
• Learning Plan: Get started by creating a step-by-step study guide that is based on recommended resources for this exam.

• Microsoft Learning Community: Join newsgroups and visit community forums to connect with your peers for suggestions on training resources and advice on your certification path and studies.

• TechNet: Designed for IT professionals, this site includes how-to instructions, best practices, downloads, technical resources, newsgroups, and chats.

• MSDN: Designed for IT professionals, this site includes how-to instructions, best practices, downloads, technical resources, newsgroups, and chats.

Skills measured
This certification exam measures your ability to develop and implement n-tier solutions, targeting both Web and rich client user experiences. Before taking the exam, you should be proficient in the job skills listed in the following table.

Skills measured by Exam 70-549
Envisioning and Designing an Application
Evaluate the technical feasibility of an application.

• Determine whether MSMQ should be used for this application.

• Determine whether remoting should be used for this application.

Evaluate the technical specifications for an application to ensure that the business requirements are met.

• Translate the functional specification into developer terminology, such as pseudo code and state diagrams.

• Analyze suggested component type and layer.

Evaluate the design of a database.

• Recommend a database schema.

• Identify the stored procedures that are required for an application.

Evaluate the logical design of an application.

• Evaluate the logical design for performance.

• Evaluate the logical design for maintainability.

• Evaluate the logical design for extensibility.

• Evaluate the logical design for scalability.

• Evaluate the logical design for availability.

• Evaluate the logical design for security.

• Evaluate the logical design against use cases.

• Evaluate the logical design for recoverability.

• Evaluate the logical design for data integrity.

Evaluate the physical design of an application. Considerations include the design of the project structure, the number of files, the number of assemblies, and the location of these resources on the server.

• Evaluate the physical design for performance.

• Evaluate the physical design for maintainability.

• Evaluate how the physical location of files affects the extensibility of the application.

• Evaluate the physical design for scalability.

• Evaluate the physical design for availability.

• Evaluate the physical design for security.

• Evaluate the physical design for recoverability.

• Evaluate the physical design for data integrity.

Designing and Developing a Component
Establish the required characteristics of a component.

• Decide when to create a single component or multiple components.

• Decide in which tier of the application a component should be located.

• Decide which type of object to build.

Create the high-level design of a component.

• Establish the life cycle of a component.

• Decide whether to use established design patterns for the component.

• Decide whether to create a prototype for the component.

• Document the design of a component by using pseudo code, class diagrams, sequence diagrams, activity diagrams, and state diagrams.

• Evaluate tradeoff decisions. Considerations include security vs. performance, performance vs. maintainability, and so on.

Develop the public API of the component.

• Decide the types of clients that can consume a component.

• Establish the required component interfaces.

• Decide whether to require constructor input.

Develop the features of a component.

• Decide whether existing functionality can be implemented or inherited.

• Decide how to handle unmanaged and managed resources.

• Decide which extensibility features are required.

• Decide whether a component must be stateful or stateless.

• Decide whether a component must be multithreaded.

• Decide which functions to implement in the base class, abstract class, or sealed class.

Develop a component feedback mechanism.

• Develop a component status feedback technique.

• Develop an exception handling mechanism.

Develop the data access and data handling features of a component.

• Analyze data relationships.

• Analyze the data handling requirements of a component.

Develop a component to include profiling requirements

• Identify potential issues, such as resource leaks and performance gaps, by profiling a component.

• Decide when to stop profiling on a component.

• Decide whether to redesign a component after analyzing the profiling results.

Choose an appropriate mechanism to deliver multimedia data across distributed applications by using Web services and Message Queuing.

• Evaluate available multimedia delivery mechanisms. Considerations include bandwidth problems, file formats, and sending large attachments.

• Design a multimedia delivery mechanism.

Designing and Developing an Application Framework
Consume a reusable software component.

• Identify a reusable software component from available components to meet the requirements.

• Identify whether the reusable software component needs to be extended.

• Identify whether the reusable software component needs to be wrapped.

• Identify whether any existing functionality needs to be hidden.

• Test the identified component that is based on the requirements.

Choose an appropriate implementation approach for the application design logic.

• Choose an appropriate data storage mechanism.

• Choose an appropriate data flow structure.

• Choose an appropriate decision flow structure.

• Choose an appropriate state management technique.

• Choose an appropriate security implementation.

Choose an appropriate event logging method for the application.

• Decide whether to log data. Considerations include policies, security, requirements, and debugging.

• Choose a storage mechanism for logged events. For example, database, flat file, event log, or XML file.

• Choose a system-wide event logging method. For example, centralized logging, distributed logging, and so on.

• Decide logging levels based on severity and priority.

Monitor specific characteristics or aspects of an application.

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• Decide whether to monitor data. Considerations include administration, auditing, and application support.

• Decide which characteristics to monitor. For example, application performance, memory consumption, security auditing, usability metrics, and possible bugs.

• Choose event monitoring mechanisms, such as System Monitor and logs.

• Decide monitoring levels based on requirements.

• Choose a system-wide monitoring method from the available monitoring mechanisms.

Testing and Stabilizing an Application
Perform a code review.

Evaluate the testing strategy.

• Create the unit testing strategy.

• Evaluate the integration testing strategy.

• Evaluate the stress testing strategy.

• Evaluate the performance testing strategy.

• Evaluate the test environment specification.

Design a unit test.

• Describe the testing scenarios.

• Decide coverage requirements.

• Evaluate when to use boundary condition testing.

• Decide the type of assertion tests to conduct.

Perform integration testing.

• Determine if the component works as intended in the target environment.

• Identify component interactions and dependencies.

• Verify results.

Resolve a bug.

• Investigate a reported bug.

• Reproduce a bug.

• Evaluate the affect of the bug and the associated cost and timeline for fixing the bug.

• Fix a bug.

Deploying and Supporting an Application
Evaluate the performance of an application that is based on the performance analysis strategy.

• Identify performance spikes.

• Analyze performance trends.

Analyze the data received when monitoring an application.

• Monitor and analyze resource usage.

• Monitor and analyze security aspects.

• Track bugs that result from customer activity.

Evaluate the deployment plan.

• Identify component-level deployment dependencies.

• Identify scripting requirements for deployment. Considerations include database scripting.

Create an application flow-logic diagram.

• Evaluate the complexity of components.

• Evaluate the complexity of interactions with other components.

Validate the production configuration environment.

• Verify networking settings.

• Verify the deployment environment.

QUESTION 1
You work as the Enterprise application developer at Certkiller .com. The
Certkiller .com network consists of a single Active Directory domain named
Certkiller .com. All servers in the domain run Windows Server 2003. The design of applications forms part of your responsibilities at Certkiller .com. Certkiller .com operates as a financial institution.
You have been asked to make a recommendation in terms of the technological
design to meet the Certkiller .com requirements. The plan is to develop a component for Certkiller .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 Certkiller .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?

A. Recommend the use of Microsoft .NET Enterprise Services. B. Recommend the use of Message Queuing.
C. Recommend the use of Extensible Markup Language (XML) Web services. D. Recommend the use of Microsoft .NET Remoting.

Answer: A

Explanation: Microsoft .NET Enterprise Services will allow you to build applications and components that make use of COM+ services. It further allows you to develop
components able of supporting transactions, just-in-time (JIT) activation. Object pooling,
as well as role-based security. One of the requirements that should be met includes a
roll-back method call in the event of failure. Object pooling will allow you to reuse class instances. And role-based security allows you to restrict method calls to specific users. Incorrect answers:
B: Message Queuing will not work under these circumstances since though it will allow you to support component-to-component communication through messages; it does not support role-based security to restrict method calls to certain users.
C: You should not recommend the use of Extensible Markup Language (XML) Web services because although it allows one to support communication across different
platforms by means of using open Internet Protocols. However, it does not support object pooling to reuse class instances. And this is one of the requirements that should be met.
D: .NET Remoting allows you to support communication across application domain boundaries by means of using remote method invocations; it does not provide transaction support to roll back in case of failure.

070-549

QUESTION 2
You work as the Enterprise application developer at Certkiller .com. The
Certkiller .com network consists of a single Active Directory domain named
Certkiller .com. All servers in the domain run Windows Server 2003. The design of applications forms part of your responsibilities at Certkiller .com. Certkiller .com operates as the local municipal traffic authority in Miami.
You have been instructed to develop an enterprise application for Certkiller .com. Following is a list of all the requirements that you should keep in mind when you develop the application:
1. Speeding fine calculations should be:
In the event of a driver exceeding the speed limit by more than 10 and less than 20 kilometers per hour (KPH) – the corresponding fine should be $100 with an additional amount of $10 for each KPH over the limit.
In the event of a driver exceeding the speed limit by 20 or more KPH, the corresponding fine should be $250 with an additional $25 for each KPH over the limit.
To this end you write the following pseudo-code to address the requirements: DECLARE speedLimit INTEGER
DECLARE speed INTEGER DECLARE fine INTEGER
Now you need to complete the pseudo-code.
What should you do? (Choose the correct code segment.)

A. IF speed > 10 THEN
fine = 100 + 10 * (speed – speed limit) IF speed > 20 THEN
fine = 250 + 25 * (speed – speed limit) B. IF speed > 20 THEN
fine = 250 + 25 * (speed – speed limit) IF speed > 10 THEN
fine = 100 + 10 * (speed – speed limit) C. IF speed- speed limit> 20 THEN fine = 250 + 25 * (speed – speed limit)
ELSE IF speed – speed limit > 10 THEN
fine = 100 + 10 * (speed – speed limit) D. IF speed > 10 THEN
fine = 100 + 10 * (speed – speed limit) ELSE IF speed > 20 THEN
fine = 250 + 25 * (speed – speed limit) Answer: C
Explanation: You should make use of
IF speed – speed limit> 20 THEN
fine = 250 + 25 * (speed – speed limit) ELSE IF speed – speed limit > 10 THEN fine = 100 + 10 * (speed – speed limit)

070-549

as the code segment. As this is written the code first determines whether the speed
exceeds the speed limit by 20 or more KPH. If so, then the fine will be set at $250 + $25
times the number of KPH exceeding the limit.
If not, the code will determine whether the speed exceeds the limit by more than 10 KPH,
if so the fine is set to $100 + $10 time the number of KPH exceeding the limit. Incorrect answer:
A: If you make use of
IF speed > 10 THEN
fine = 100 + 10 * (speed – speed limit) IF speed > 20 THEN
fine = 250 + 25 * (speed – speed limit)
it will determine whether the speed is greater than 10KPH or whether it is 20 KPH or more instead of calculating the difference between the speed and the speed limit.
B: If you make use of
IF speed > 20 THEN
fine = 250 + 25 * (speed – speed limit) IF speed > 10 THEN
fine = 100 + 10 * (speed – speed limit)
it will a fine to be set to $100 + $10 for each KPH over the limit even if the driver’s speed exceeds 20 KPH or more.
D: If you make use of
IF speed > 10 THEN
fine = 100 + 10 * (speed – speed limit) ELSE IF speed > 20 THEN
fine = 250 + 25 * (speed – speed limit)
it will determine whether the speed is greater than 10 KPH or whether 20 KPH or more, instead of calculating the difference between the speed and the speed limit.

QUESTION 3
Exhibit:

You work as the Enterprise application developer at Certkiller .com. The
Certkiller .com network consists of a single Active Directory domain named
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