70-548C++ Exam
Designing and Developing Windows-Based Applications by Using the Microsoft .NET Framework C++
- Exam Number/Code : 70-548C++
- Exam Name : Designing and Developing Windows-Based Applications by Using the Microsoft .NET Framework C++
- Questions and Answers : 80 Q&As
- Update Time: 2011-09-21
- Price:
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Microsoft MCPD 70-548C++ exam braindumps questions and answers
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Exam : Microsoft 70-548(C++)
Title : PRO:Design & Develop Wdws-Based Appl by Using MS.NET Frmwk
1. You create Microsoft Windows-based applications. You are creating a component. The component performs statistical computations by using sets of data from a large, complex database. According to the design specification, the component performs a full set of calculations in not more than 5 seconds. Currently, the component takes more than 20 seconds to perform the required calculations. The project is almost complete and you must resolve the performance issues quickly. You need to identify the major processing performance issues in the component. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Add custom instrumentation to the component for operations that you expect will exceed performance requirements.
B. Use SQL Profiler when you run the component to identify long-running database queries.
C. Use Microsoft Network Monitor to identify long-running or large network data transfers.
D. Use the common language runtime (CLR) profiler to identify the most used and long-running functions in the component and the specific external functions they call.
E. Create a custom test harness that calls individual functions and measures how long they take to run.
Answer: BD
2. You create Microsoft Windows-based applications. You are designing an application that streams multimedia data. The application must have minimal impact on the network. The application will be used by Microsoft Windows XP Professional client computers and Microsoft Windows Server 2003 client computers. The media you need to use is stored on a file server in a nonproprietary raw video format and the files are unedited. You need to choose an appropriate design modification that requires the least amount of programming effort. What should you do?
A. Write code to convert the video files to Microsoft Windows Media Video (WMV) format in real time.
B. Convert the video files to Microsoft Windows Media Video (WMV) format, and resample the video to a bit rate that is acceptable.
C. Write a custom file format filter for Microsoft DirectShow, and distribute the filter to the client computers.
D. Convert the video files into separate audio and video files.
Answer: B
3. You create Microsoft Windows-based applications. You create an application that loads bulk weather data into a data warehouse for analysis. The application is used by data-entry technicians. One data-entry technician is visually impaired. The data-entry technicians provide a large flat file as the source of the data, and they typically minimize the application so that they can use other programs while the data is being loaded. The data entry technicians must load as many data files as possible during the course of their work day. The user interface contains a progress bar control that has a text label. The text label indicates the current percentage of progress. You need to provide appropriate status feedback to the user by indicating that the process is complete. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Write code to change the title bar text of the application when the process is complete.
B. Write code to reset the progress bar to its minimum value.
C. Write code to play a sound that indicates the process is complete.
D. Write code to update the status bar text to indicate the number of records processed.
E. Write code to display an animated balloon tip when the process completes.
Answer: CE
4. You create Microsoft Windows-based applications. You design a composite user control that is used to enter e-mail addresses. The control is as shown in the following exhibit. (Click the Exhibit button.) The control validates the user input by using a regular expression. The control validates e-mail addresses and prevents the user from submitting blocked e-mail addresses. The control must permit the user to correct the entry if the user enters a blocked e-mail address. You need to provide feedback if the user enters a blocked e-mail address in the txtEmailAddress text box. What should you do?
A. Write a code segment to throw an application exception.
B. Set a custom property of the composite user control to indicate a data validation error.
C. Write a code segment to display a message box if the user enters a blocked e-mail address.
D. Write a code segment to clear the txtEmailAddress text box if the user enters a blocked e-mail address.
Answer: C
5. You create Microsoft Windows-based applications. You are designing an application that permits insurance agents to provide insurance quotes to prospective customers. The application permits insurance agents to survey the customer and enter the customers responses into the application. Each customer response adjusts the computed level of risk for the customer depending on how the customer answers the question.
The application must meet the following requirements:
The application must continuously display a thermometer indicating the level of risk.
The prospective customers risk must be updated after each question.
The application must ensure that the user interacts with the thermometer component as little as possible.
You need to evaluate a user interface design for the thermometer component of the application. What should you do?
A. Design the thermometer component as a movable tool Window that is always displayed as the top most Window.
B. Design the thermometer component as a part of the main questionnaire form that is always visible.
C. Design the thermometer component to be displayed as a modal Window when the insurance agent clicks a button.
D. Design the thermometer component to display a non-modal Window that can be dismissed by the insurance agents when they are ready to ask the next question.
Answer: B
6. You create Microsoft Windows-based client applications. You are designing a smart client application for warehouse packaging clerks. The application must permit the clerks to add and delete items in the packaging invoices they create at their workstations. Each workstation has only a keyboard and a hand-held barcode scanner for input. You need to design the user interface for the application such that the clerks can add and delete items with minimum effort. What should you do?
A. Add to the form a context menu that has Add to Invoice and Remove from Invoice menu items.
B. Add to the form a menu that has Add to Invoice and Remove from Invoice menu items.
C. Add to the form a KeyPress event handler that toggles between Add to Invoice and Remove from Invoice modes.
D. Add to the form a ToolStrip control that has a button that toggles between Add to Invoice and Remove from Invoice modes.
Answer: C
7. You create Microsoft Windows-based applications. You are responsible for maintaining your companys application framework. You analyze the requirements for some of the applications that your company develops. You identify a common functionality. The functionality includes user interface elements as well as data-binding logic and display logic. You need to implement the functionality in such a way that other applications can reuse it. Which type of component should you implement?
A. data access component
B. business logic component
C. control library
D. data structure component
Answer: C
8. You create Microsoft Windows-based applications. You create a component to process daily reports. These daily reports are data-driven.
Eight database tables dictate the following properties:
the data that is printed
the format of the data
the order of output
The component loads the configuration data into a specific internal structure. Subsequently, the component retrieves and outputs the report data based on the configuration settings that are stored in the internal structure. The database is not updated. You need to develop the data handling capabilities of the component to manage the configuration data and the report data. You also need to ensure that the reports are generated as quickly as possible. Which two data handling mechanisms should you choose? (Each correct answer presents part of the solution. Choose two.)
A. Use a DataReader object to load the report data based on the configuration data. Perform the required calculations.
B. Use a DataReader object to load the configuration data from the database.
C. Use a DataAdapter object and a DataSet object to load the configuration data from the database.
D. Use a DataAdapter object and a DataSet object to load the report data based on the configuration data. Perform the required calculations.
Answer: AB
9. You create Microsoft Windows-based applications. You are developing an application that will be used by stock traders. The project scope contains the following requirements:
The application must permit users to set thresholds for minimum and maximum values for different stocks.
The application must alert the user when stock prices reach the pre-defined thresholds.
The application must permit the user to either buy or sell stock and specify the quantity of stock to trade.
The application must permit multiple alerts to be displayed simultaneously.
You need to decide how to implement the alert mechanism. What should you do?
A. Use a modal dialog box to show each alert and to permit the user to trade stocks.
B. Use a message box to show each alert and the main application form to permit the user to trade stocks.
C. Use a BalloonTip control to display multiple alerts and the main application form to permit the user to trade stocks.
D. Use a custom BalloonTip control to display multiple alerts and to permit the user to trade stocks.
Answer: D
10. You create Microsoft Windows-based applications.
You are designing a class to be used by multiple client applications. This class will be used to generate unique account numbers. Your company guidelines state that unique number generating components must comply with the following design pattern:
Classes must be designed so that they cannot be instantiated directly by client applications.
Only a single instance of the class must be used by all the client applications.
Instance methods and properties for these classes must be accessible to client applications.
You need to define how this class will implement the design pattern. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Declare the class constructors as private.
B. Declare the class constructors as internal.
C. Create a public static method to retrieve an existing instance of the class, or a new instance if one does not exist.
D. Create a public instance method to retrieve an existing instance of the class, or a new instance if one does not exist.
E. Create a private static method to retrieve an existing instance of the class, or a new instance if one does not exist.
Answer: BC
11. You create Microsoft Windows-based applications. You are designing a user interface for a multi-page questionnaire.
You need to ensure that the user interface meets the following business requirements:
The user interface is reusable.
The user interface requires the user to select three out of five choices for each question.
The user interface permits the user to check a box to select the correct answer or answers.
What should you do?
A. Create a custom Windows user control that inherits from a CheckedListBox control.
B. Use a multi-select ListBox control that displays the possible answers.
C. Use a TextBox control for the user to enter answers separated by commas.
D. Use a CheckedListBox control to display the possible answers.
Answer: A
12. You create Microsoft Windows-based applications. You create a component that calls an existing function. The design for the function specifies that it might throw an application-specific exception named InvalidChecksumException, which inherits from System.ApplicationException. The InvalidChecksumException exception is an error that can be handled. But the component cannot handle any other type of error. The component does not have any additional information that can be added to other types of errors. You need to design the component to correctly handle exceptions. You also need to ensure that the exception-handling strategy does not affect performance. What should you do?
A. Use a catch statement that has a filter for ApplicationExceptions and find the exception type. If it is InvalidChecksumException, handle it automatically or rethrow the exception.
B. Use only a catch statement that has a filter for InvalidChecksumExceptions and handle them automatically.
C. Use a catch statement that has an empty filter. Verify the Message property to see if the exception is an InvalidChecksumException and perform the automatic recovery or rethrow the exception.
D. Use a catch statement that has a filter for InvalidChecksumException, followed by another catch statement that has a filter for Exception. In the first catch block, automatically handle the exception. In the second catch block, log the error and rethrow the exception.
Answer: B
13. You create Microsoft Windows-based applications. You are creating a component that will encapsulate a data source. Dozens of applications will use the component.
The component must meet the following design requirements:
1.The component must be able to be modified within a Rapid Application Development environment.
2.The component must be without a user interface.
You propose to derive the component from the System.Windows.Forms.Control class and to implement the IComponent interface. You need to decide whether the component will meet the requirements. What should you conclude?
A. The solution meets both the design requirements.
B. The solution does not meet any of the design requirements.
C. The solution meets the second requirement but not the first requirement.
D. The solution meets the first requirement but not the second requirement.
Answer: D
14. The component must be without a user interface.
You propose to derive the component from the System.Windows.Forms.Control class and to implement the IComponent interface. You need to decide whether the component will meet the requirements. What should you conclude?
A. The solution meets both the design requirements.
B. The solution does not meet any of the design requirements.
C. The solution meets the second requirement but not the first requirement.
D. The solution meets the first requirement but not the second requirement.
Answer: D
Click Online chat to talk with us , get more informations about Microsoft MCPD 70-548C++ practice exam study guides questions and answers
¡¡
Exam : Microsoft 70-548(C++)
Title : PRO:Design & Develop Wdws-Based Appl by Using MS.NET Frmwk
1. You create Microsoft Windows-based applications. You are creating a component. The component performs statistical computations by using sets of data from a large, complex database. According to the design specification, the component performs a full set of calculations in not more than 5 seconds. Currently, the component takes more than 20 seconds to perform the required calculations. The project is almost complete and you must resolve the performance issues quickly. You need to identify the major processing performance issues in the component. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Add custom instrumentation to the component for operations that you expect will exceed performance requirements.
B. Use SQL Profiler when you run the component to identify long-running database queries.
C. Use Microsoft Network Monitor to identify long-running or large network data transfers.
D. Use the common language runtime (CLR) profiler to identify the most used and long-running functions in the component and the specific external functions they call.
E. Create a custom test harness that calls individual functions and measures how long they take to run.
Answer: BD
2. You create Microsoft Windows-based applications. You are designing an application that streams multimedia data. The application must have minimal impact on the network. The application will be used by Microsoft Windows XP Professional client computers and Microsoft Windows Server 2003 client computers. The media you need to use is stored on a file server in a nonproprietary raw video format and the files are unedited. You need to choose an appropriate design modification that requires the least amount of programming effort. What should you do?
A. Write code to convert the video files to Microsoft Windows Media Video (WMV) format in real time.
B. Convert the video files to Microsoft Windows Media Video (WMV) format, and resample the video to a bit rate that is acceptable.
C. Write a custom file format filter for Microsoft DirectShow, and distribute the filter to the client computers.
D. Convert the video files into separate audio and video files.
Answer: B
3. You create Microsoft Windows-based applications. You create an application that loads bulk weather data into a data warehouse for analysis. The application is used by data-entry technicians. One data-entry technician is visually impaired. The data-entry technicians provide a large flat file as the source of the data, and they typically minimize the application so that they can use other programs while the data is being loaded. The data entry technicians must load as many data files as possible during the course of their work day. The user interface contains a progress bar control that has a text label. The text label indicates the current percentage of progress. You need to provide appropriate status feedback to the user by indicating that the process is complete. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Write code to change the title bar text of the application when the process is complete.
B. Write code to reset the progress bar to its minimum value.
C. Write code to play a sound that indicates the process is complete.
D. Write code to update the status bar text to indicate the number of records processed.
E. Write code to display an animated balloon tip when the process completes.
Answer: CE
4. You create Microsoft Windows-based applications. You design a composite user control that is used to enter e-mail addresses. The control is as shown in the following exhibit. (Click the Exhibit button.) The control validates the user input by using a regular expression. The control validates e-mail addresses and prevents the user from submitting blocked e-mail addresses. The control must permit the user to correct the entry if the user enters a blocked e-mail address. You need to provide feedback if the user enters a blocked e-mail address in the txtEmailAddress text box. What should you do?
A. Write a code segment to throw an application exception.
B. Set a custom property of the composite user control to indicate a data validation error.
C. Write a code segment to display a message box if the user enters a blocked e-mail address.
D. Write a code segment to clear the txtEmailAddress text box if the user enters a blocked e-mail address.
Answer: C
5. You create Microsoft Windows-based applications. You are designing an application that permits insurance agents to provide insurance quotes to prospective customers. The application permits insurance agents to survey the customer and enter the customers responses into the application. Each customer response adjusts the computed level of risk for the customer depending on how the customer answers the question.
The application must meet the following requirements:
The application must continuously display a thermometer indicating the level of risk.
The prospective customers risk must be updated after each question.
The application must ensure that the user interacts with the thermometer component as little as possible.
You need to evaluate a user interface design for the thermometer component of the application. What should you do?
A. Design the thermometer component as a movable tool Window that is always displayed as the top most Window.
B. Design the thermometer component as a part of the main questionnaire form that is always visible.
C. Design the thermometer component to be displayed as a modal Window when the insurance agent clicks a button.
D. Design the thermometer component to display a non-modal Window that can be dismissed by the insurance agents when they are ready to ask the next question.
Answer: B
6. You create Microsoft Windows-based client applications. You are designing a smart client application for warehouse packaging clerks. The application must permit the clerks to add and delete items in the packaging invoices they create at their workstations. Each workstation has only a keyboard and a hand-held barcode scanner for input. You need to design the user interface for the application such that the clerks can add and delete items with minimum effort. What should you do?
A. Add to the form a context menu that has Add to Invoice and Remove from Invoice menu items.
B. Add to the form a menu that has Add to Invoice and Remove from Invoice menu items.
C. Add to the form a KeyPress event handler that toggles between Add to Invoice and Remove from Invoice modes.
D. Add to the form a ToolStrip control that has a button that toggles between Add to Invoice and Remove from Invoice modes.
Answer: C
7. You create Microsoft Windows-based applications. You are responsible for maintaining your companys application framework. You analyze the requirements for some of the applications that your company develops. You identify a common functionality. The functionality includes user interface elements as well as data-binding logic and display logic. You need to implement the functionality in such a way that other applications can reuse it. Which type of component should you implement?
A. data access component
B. business logic component
C. control library
D. data structure component
Answer: C
8. You create Microsoft Windows-based applications. You create a component to process daily reports. These daily reports are data-driven.
Eight database tables dictate the following properties:
the data that is printed
the format of the data
the order of output
The component loads the configuration data into a specific internal structure. Subsequently, the component retrieves and outputs the report data based on the configuration settings that are stored in the internal structure. The database is not updated. You need to develop the data handling capabilities of the component to manage the configuration data and the report data. You also need to ensure that the reports are generated as quickly as possible. Which two data handling mechanisms should you choose? (Each correct answer presents part of the solution. Choose two.)
A. Use a DataReader object to load the report data based on the configuration data. Perform the required calculations.
B. Use a DataReader object to load the configuration data from the database.
C. Use a DataAdapter object and a DataSet object to load the configuration data from the database.
D. Use a DataAdapter object and a DataSet object to load the report data based on the configuration data. Perform the required calculations.
Answer: AB
9. You create Microsoft Windows-based applications. You are developing an application that will be used by stock traders. The project scope contains the following requirements:
The application must permit users to set thresholds for minimum and maximum values for different stocks.
The application must alert the user when stock prices reach the pre-defined thresholds.
The application must permit the user to either buy or sell stock and specify the quantity of stock to trade.
The application must permit multiple alerts to be displayed simultaneously.
You need to decide how to implement the alert mechanism. What should you do?
A. Use a modal dialog box to show each alert and to permit the user to trade stocks.
B. Use a message box to show each alert and the main application form to permit the user to trade stocks.
C. Use a BalloonTip control to display multiple alerts and the main application form to permit the user to trade stocks.
D. Use a custom BalloonTip control to display multiple alerts and to permit the user to trade stocks.
Answer: D
10. You create Microsoft Windows-based applications.
You are designing a class to be used by multiple client applications. This class will be used to generate unique account numbers. Your company guidelines state that unique number generating components must comply with the following design pattern:
Classes must be designed so that they cannot be instantiated directly by client applications.
Only a single instance of the class must be used by all the client applications.
Instance methods and properties for these classes must be accessible to client applications.
You need to define how this class will implement the design pattern. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Declare the class constructors as private.
B. Declare the class constructors as internal.
C. Create a public static method to retrieve an existing instance of the class, or a new instance if one does not exist.
D. Create a public instance method to retrieve an existing instance of the class, or a new instance if one does not exist.
E. Create a private static method to retrieve an existing instance of the class, or a new instance if one does not exist.
Answer: BC
11. You create Microsoft Windows-based applications. You are designing a user interface for a multi-page questionnaire.
You need to ensure that the user interface meets the following business requirements:
The user interface is reusable.
The user interface requires the user to select three out of five choices for each question.
The user interface permits the user to check a box to select the correct answer or answers.
What should you do?
A. Create a custom Windows user control that inherits from a CheckedListBox control.
B. Use a multi-select ListBox control that displays the possible answers.
C. Use a TextBox control for the user to enter answers separated by commas.
D. Use a CheckedListBox control to display the possible answers.
Answer: A
12. You create Microsoft Windows-based applications. You create a component that calls an existing function. The design for the function specifies that it might throw an application-specific exception named InvalidChecksumException, which inherits from System.ApplicationException. The InvalidChecksumException exception is an error that can be handled. But the component cannot handle any other type of error. The component does not have any additional information that can be added to other types of errors. You need to design the component to correctly handle exceptions. You also need to ensure that the exception-handling strategy does not affect performance. What should you do?
A. Use a catch statement that has a filter for ApplicationExceptions and find the exception type. If it is InvalidChecksumException, handle it automatically or rethrow the exception.
B. Use only a catch statement that has a filter for InvalidChecksumExceptions and handle them automatically.
C. Use a catch statement that has an empty filter. Verify the Message property to see if the exception is an InvalidChecksumException and perform the automatic recovery or rethrow the exception.
D. Use a catch statement that has a filter for InvalidChecksumException, followed by another catch statement that has a filter for Exception. In the first catch block, automatically handle the exception. In the second catch block, log the error and rethrow the exception.
Answer: B
13. You create Microsoft Windows-based applications. You are creating a component that will encapsulate a data source. Dozens of applications will use the component.
The component must meet the following design requirements:
1.The component must be able to be modified within a Rapid Application Development environment.
2.The component must be without a user interface.
You propose to derive the component from the System.Windows.Forms.Control class and to implement the IComponent interface. You need to decide whether the component will meet the requirements. What should you conclude?
A. The solution meets both the design requirements.
B. The solution does not meet any of the design requirements.
C. The solution meets the second requirement but not the first requirement.
D. The solution meets the first requirement but not the second requirement.
Answer: D
14. The component must be without a user interface.
You propose to derive the component from the System.Windows.Forms.Control class and to implement the IComponent interface. You need to decide whether the component will meet the requirements. What should you conclude?
A. The solution meets both the design requirements.
B. The solution does not meet any of the design requirements.
C. The solution meets the second requirement but not the first requirement.
D. The solution meets the first requirement but not the second requirement.
Answer: D
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