70-549CSharp MCPD Braindump ExamSoon 70-549CSharp Exams Microsoft PRO:Design & Develop Enterprise Appl by Using MS.NET Frmwk O rder : 70-549CSharp Exam Practice Exam: 70-549CSharp Exam Number/Code: 70-549CSharp Exam Name: PRO:Design & Develop Enterprise Appl by Using MS.NET Frmwk Questions and Answers: 139 Q&As Free 70-549CSharp Braindumps Exam : Microsoft 70-549CSharp Title : Designing and Developing Enterprise Applications Using CSharp 1. You are an enterprise application developer. You are working on a component in an application that provides a business workflow solution. The component will be used as a workflow to manage purchase requisitions. You discover that a WebException is raised when you use the GetApprover private method to invoke a method of a Web Service. You need identify a code that allows the component to invoke the following methods: ·The GetDefaultApprover method if a WebException is raised ·The ReportError method if any other exception is raised ·The GoToNextStep method if no exception is raised Which code segment should you use? A. try{ GetApprover (); GoToNextStep();} catch (WebException ex){ GetDefaultApprover ();} catch (Exception ex){ ReportError();} B. try{ GetApprover (); GoToNextStep();} catch (WebException ex){ GetDefaultApprover (); } catch (SqlException ex){ ReportError(); } C. try{ GetApprover (); } catch (WebException ex){ GetDefaultApprover (); } catch (Exception ex){ ReportError(); } finally{ GoToNextStep(); } D. try{ GetApprover (); } catch (WebException ex){ GetDefaultApprover (); } catch (SqlException ex){ ReportError(); } finally{ GoToNextStep(); } Answer: A 2. You are an enterprise application developer. You are designing an intranet Web application. This application must meet the following requirements: ·The employees must log on to use the application. ·The database authentication mechanism must be as secure as possible. ·The number of connection pools must be minimized. You decide to use Microsoft SQL Server authentication and a specific SQL Server account. You need to evaluate whether the design will meet the business requirements and make recommendations, if required. What should you conclude? A. The design meets the requirements. B. The design does not meet the requirements. Use Windows Authentication with a specific Windows account. C. The design does not meet the requirements. Use SQL Server authentication and the credentials of the logged on user. D. The design does not meet the requirements. Use Windows Authentication with the Windows account of the logged on user. Answer: B 3. You are an enterprise application developer. You are reviewing the design of a component. The component is used to communicate with a legacy system. The component must meet the following requirements: ·It must handle high-latency network communications. ·It must accept synchronous calls from Windows and Web-based applications developed by using .NET Framework 2.0 in the local network. ·It must use asynchronous communications. You need to implement the design of the component. What should you do? A. Develop a Web service that creates binary files on a network share. B. Develop a Web service that creates serialized XML files on a network share. C. Develop a component that uses FTP to exchange binary files with the legacy system. D. Develop a component that uses Microsoft Message Queue to communicate with the legacy system. Answer: D 4. You are an enterprise application developer. You are creating a component that stores employee details in a Microsoft SQL Server database. The component is implemented as a class. The class includes the public properties ID and Name. The class does not contain static methods. Both the ID field and the Name field are required in the Employee table of the database. Serialized instances of the class can be returned by XML Web services. You need to ensure that the class supports XML serialization. You also need to minimize the possibility of a developer creating a class instance by using partial data. Which approach should you choose? A. Provide a single constructor that requires both Name and ID parameters. B. Provide a default constructor and a constructor that requires both Name and ID parameters. C. Provide a default constructor, a constructor that requires an ID parameter, and a constructor that requires a Name parameter. D. Provide a static constructor without any parameter and a constructor that requires both Name and ID parameters. Answer: B 5. You are an enterprise application developer. You are reviewing the following code segment. (Line numbers are included for reference only.) 01 public class MyResource: IDisposable { 02 03 private bool disposed = false; 04 05 public void Dispose() { 06 Dispose(true); 07 } 08 09 private void Dispose(bool disposing) { 10 if(!this.disposed) { 11 if(disposing) { 12 ReleaseManagedResources(); 13 } 14 ReleaseUnmanagedResources(); 15 disposed = true; 16 } 17 } 18 19 ~MyResource() { 20 ReleaseManagedResources(); 21 ReleaseUnmanagedResources(); 22 } 23 } You discover that the Dispose pattern is implemented incorrectly. You need to modify the code segment to ensure that the dispose pattern is implemented correctly. What should you do? A. ·Insert the following line of code after line 06. GC.SuppressFinalize(this); ·Replace lines 20 and 21 with the following line of code. Dispose(true); B. ·Insert the following line of code after line 06. GC.SuppressFinalize(this); ·Replace lines 20 and 21 with the following line of code. Dispose(false); C. ·Insert the following line of code after line 19. GC.SuppressFinalize(this); ·Replace lines 20 and 21 with the following line of code. Dispose(false); D. ·Insert the following line of code after line 19. GC.SuppressFinalize(this); ·Replace lines 20 and 21 with the following line of code. Dispose(true); Answer: B 6. You are an enterprise application developer. You are creating an application that has a layered architecture as shown in the following diagram. A component that resides in the workflow layer manages transactions across one or more activities in the business logic layer. You need to make modifications to the component. You need to identify the layers that might require modification when the component in the workflow layer is modified. Which two layers should you identify? (Each correct answer presents part of the solution. Choose two.) A. Presentation layer B. Service facade layer C. Business logic layer D. Data access layer Answer: AB 7. You are an enterprise application developer. You are evaluating a component that monitors a Web-based application. The component stores monitoring information in a database and performs the following functions: ·Retrieves the number of orders placed per second. ·Tracks the data for peak usage of the application and displays the data in a tabular form. Subsequently, monitoring requirements change in the following manner: ·Users must be able to view data graphically. ·Users must be able to analyze data in real time. ·Users must be able to correlate the number of orders placed per second with the memory usage in the Web server. You need to evaluate whether the component meets the new requirements and propose a solution, if required. What should you conclude? A. The component meets the new requirements. B. The component does not meet the new requirements. You need to update a text file by using trace statements instead of storing data in a database. C. The component does not meet the new requirements. You need to update a custom performance counter instead of a database. D. The component does not meet the new requirements. You need to update a custom event log instead of a database. Answer: C 8. You are an enterprise application developer. You create an application to provide an enterprise-wide barcode printing solution. You are developing a component that contains a method named InitializePrinter. The method will call a private function named IsPrinterLicensed to verify the license of the printer for the application. You need to ensure that the exceptions raised by the IsPrinterLicensed function bubble up to the application that calls the InitializePrinter method. You also need to ensure that the exceptions contain contextual information. Which code segment should you use? A. nResult = IsPrinterLicensed(printerName); InitPrinter(printerName); B. try { nResult = IsPrinterLicensed(printerName); InitPrinter(printerName) ;} catch (Exception ex){ throw ex; } C. try { nResult = IsPrinterLicensed(printerName); InitPrinter(printerName) ;} catch (Exception ex){ throw new Exception("Exception thrown from InitializePrinter");} D. try { nResult = IsPrinterLicensed(printerName); InitPrinter(printerName) ;} catch (Exception ex){ throw new Exception("Exception thrown from InitializePrinter", ex);} Answer: D 9. 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.) A. Apply the CLSCompliant(true) attribute to the assembly and component definition. B. Apply the abstract keyword to the component definition. C. Apply the ComVisible(true) attribute to the assembly and component definition. D. Create a primary interop assembly for the assembly that hosts your component. E. Apply the sealed keyword to the component definition. F. Apply the public keyword to the component definition. Answer: AEF 10. 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? A. .NET Remoting B. Web services C. Message Queuing D. DCOM Answer: C 11. You are an enterprise application developer. You create a component that has a method named IsPrinterLicensed. The method invokes a Web service named printLicensing. The Web service provides a method named checkLicense. You want to recieve the feedback from the Web service when the call to the Web service is completed. You write the following code segment. void pl_Completed(Object sender, printLicense.checkLicenseCompletedEventArgs args) { bool Result = args.Result; // process result } You need to invoke the Web service asynchronously. You also need to ensure that the component is notified when the call to the Web service is completed. Which code fragment should you use? A. pl = new printLicense.printLicensing(); pl.checkLicenseCompleted += pl_Completed; pl.checkLicense(companyName, printerIP); B. pl = new printLicense.printLicensing(); pl.checkLicenseCompleted += pl_Completed; pl.checkLicenseAsync(companyName, printerIP); C. pl = new printLicense.printLicensing(); pl.checkLicenseAsync(companyName, printerIP); pl.checkLicenseCompleted += pl_Completed; D. pl = new printLicense.printLicensing(); pl.AllowAutoRedirect = true; pl.checkLicenseAsync(companyName, printerIP); Answer: B 12. You are an enterprise application developer. You are creating a component for a distributed application for your company. The application manages the users' access to sensitive company data. The company data is stored in an NTFS file system. Each file has permissions defined for domain users in an access control list (ACL). The application must meet the following requirements in the same order of priority: ·Secure access to sensitive information based on the users' credentials. ·Log authorization failures. You need to use an appropriate authorization mechanism for the application. You need to achieve this by using the least amount of development effort. What should you do? A. Access files by using impersonation and the WindowsIdentity class. B. Access files after comparing roles by using the WindowsIdentity class and the FileSecurity class. C. Access files from a COM+ server package that is configured to run as the interactive user. D. Host the component in an IIS server and specify authorization rules in a Web.config file. Answer: A 13. You are an enterprise application developer. The data access layer of an application contains the following code segment. (Line numbers are included for reference only.) 01 static public List<Employee> GetEmployees(){ 02 List<Employee> employees = new List<Employee>(); 03 using (SqlConnection cnn = new SqlConnection(_cnnStr)){ 04 SqlCommand cmd = new SqlCommand("GetEmployees", cnn); 05 cnn.Open(); 06 DataSet ds = new DataSet(); 07 SqlDataAdapter da = new SqlDataAdapter(cmd); 08 da.Fill(ds); 09 foreach (DataRow row in ds.Tables[0].Rows){ 10 Employee emp = new Employee(); 11 emp.ID = Convert.ToInt32(row["Id"]); 12 emp.Name = Convert.ToString(row["Name"]); // 13 employees.Add(emp); 14 } 15 } 16 return employees; 17 } You review the code segment and discover that it takes a long time to execute. You need to modify the code segment to improve the performance. What should you do? A. ·Create a SqlDataReader object. ·Iterate through a DataReader object to populate the employees list. B. ·Fill a DataTable object by using a DataTable.Load method. ·Iterate through the DataTable to populate the employees list. C. ·Fill a DataTable object by using a SqlDataAdapter object. ·Iterate through the DataTable to populate the employees list. D. ·Fill a DataTable object by using a DataTable.Load method. ·Create a DataTableReader object from the DataTable. ·Iterate through the DataTableReader to populate the employees list. Answer: A 14. You are an enterprise application developer. You are performing a peer code review for an entry-level developer. The developer is implementing server-side business objects. The business objects must be accessed and activated by using .NET Framework remoting. In addition, the business objects must meet the following requirements: ·Implement an interface for client-side access. ·Inherit from a base business object class. The developer writes the following code segment. Public Class UserObject Inherits BaseBizObject, MarshalByRefObject Implements IUserObject End Class When the developer attempts to compile the code, an error message is received. You need to review the code and recommend a solution. What should you recommend? A. The class must derive from the MarshalByRefObject class. The UserObject class can access methods in the BaseBizObject class by creating an instance of the BaseBizObject class. B. The class must derive from the BaseBizObject class. The BaseBizObject class must derive from the MarshalByRefObject class. C. Change the approach so that the client computer accesses a wrapper class that derives from the MarshalByRefObject class. D. The class must derive from the MarshalByValue class instead of the MarshalByRefObject class. Answer: B 15. You are an enterprise application developer. You create a data access layer for an order processing application. The data access layer meets the following criteria: ·The data access layer contains a GetConnectionString method to retrieve and return the connection string for the database. ·The data access layer contains a stored procedure named GetTotalOrderAmount. ·The stored procedure runs a select query to return only the sum of the OrderAmount column for the active orders. At times, there might be no active orders. You create the following method to execute the stored procedure and return the total. public double GetTotalOrderAmount() { SqlConnection con = new SqlConnection(GetConnectionString()); string sql = "GetTotalOrderAmount"; SqlCommand cmd = new SqlCommand(sql,con); IDataReader rd; con.Open(); rd = cmd.ExecuteReader(); double amt = 0.0; if (rd.Read()) { amt = rd.GetDouble(0); } rd.Close(); con.Close(); return amt; } You need to review the code and recommend modifications to simplify the code and improve performance, if necessary. What should you conclude and recommend? A. The code does not need to be modified. B. The code needs to be modified. You must remove the condition that verifies whether the DataReader object returned any rows. C. The code needs to be modified. You must use a DataSet object instead of a DataReader object. D. The code needs to be modified. You must use the ExecuteScalar method instead of the ExecuteReader method. Answer: D 16. You are an enterprise application developer. You are manipulating a collection of customer, product, and supplier objects. The collection objects must fulfill the following requirements: ·The objects must use custom sort methods on different properties of the respective classes. ·The objects must be strongly typed. A developer from your team decides to use the following collection classes. abstract class MyCollectionBase : System.Collections.CollectionBase { abstract public void Sort(); } public class CustomerCollection : MyCollectionBase { //Code overriding CollectionBase methods public override void Sort(){ //Customer sorting code }} public class SupplierCollection : MyCollectionBase { //Code overriding CollectionBase methods public override void Sort(){ //Supplier sorting code}} public class ProductCollection : MyCollectionBase { //Code overriding CollectionBase methods public override void Sort(){ //Product sorting code}} You need to review the code and recommend improvements to simplify maintenance, if necessary. What should you conclude and recommend? A. The code does not need to be modified. B. The code needs to be modified. The MyCollectionBase class must implement the ICollection interface instead of inheriting from the CollectionBase class. C. The code needs to be modified. Use List<T> class instead of creating custom collections. D. The code needs to be modified. The child collection classes must inherit from the CollectionBase class instead of the MyCollectionBase class. Answer: C 17. You are an enterprise application developer. You are creating a client/server application. You need to install the application on the company network. The client/server application must meet the following criteria: ·The server component is a class library that is created by using the .NET Framework. ·The client component is a Microsoft Windows-based application that is created by using the .NET Framework. ·The client component and the server component must communicate by using a binary protocol. ·The fewest possible ports are opened between the client component and the server component. You need to identify a technology that permits the server to communicate with the client component through the TCP/IP protocol. Which technology should you use? A. Message Queuing B. .NET Remoting C. Web services D. DCOM Answer: B 18. You are an enterprise application developer. You are creating an application. Within your application, an order contains order lines. Order lines are always contained within an order. You need to analyze this structure and show the link between the order and the order line by using a class diagram. Which diagram should you choose? A. B. C. D. Answer: A 19. You are an enterprise application developer. You are performing a peer code review for an entry-level developer. The developer is implementing server-side business objects. The business objects must be accessed and activated by using .NET Framework remoting. In addition, the business objects must meet the following requirements: ·Implement an interface for client-side access. ·Inherit from a base business object class. The developer writes the following code segment. public class UserObject : BaseBizObject, MarshalByRefObject, IUserObject {} When the developer attempts to compile the code, an error message is received. You need to review the code and recommend a solution. What should you recommend? A. The class must derive from the MarshalByRefObject class. The UserObject class can access methods in the BaseBizObject class by creating an instance of the BaseBizObject class. B. The class must derive from the BaseBizObject class. The BaseBizObject class must derive from the MarshalByRefObject class. C. Change the approach so that the client computer accesses a wrapper class that derives from the MarshalByRefObject class. D. The class must derive from the MarshalByValue class instead of the MarshalByRefObject class. Answer: B 20. You are an enterprise application developer. You are creating an e-commerce Web application. The application architecture consists of layers as shown in the following diagram. The application layers are described in the following tables. You need to package the required cryptographic services into a single component. You also need to identify suitable locations for the cryptography component. What are the two possible layers to achieve this goal? (Each correct answer presents a complete solution. Choose two.) A. the presentation layer B. the service facade layer C. the workflow layer D. the business logic layer E. the data access layer Answer: DE More 70-549CSharp Braindumps Information Exam Description 1. ExamSoon offer free update service for three month. After you purchase our product, we will offer free update in time for three month. 2. High quality and Value for the 70-549CSharp Exam. ExamSoon Practice Exams for 70-549CSharp are written to the highest standards of technical accuracy, provided by our certified subject matter experts and published authors for development. 3. 100% Guarantee to Pass Your MCPD exam and get your MCPD Certification. 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