Microsoft 70-483 Online Practice Questions and Exam Preparation

Microsoft 70-483 Online Questions & Answers

• Question 91:

  An application will upload data by using HTML form-based encoding. The application uses a method named SendMessage. The SendMessage() method includes the following code. (Line numbers are included for reference only.)

  

  The receiving URL accepts parameters as form-encoded values.

  You need to send the values intA and intB as form-encoded values named a and b, respectively.

  Which code segment should you insert at line 04?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

  ---

  WebClient.UploadValuesTaskAsync - Uploads the specified name/value collection to the resource identified by the specified URI as an asynchronous operation using a task object.

  These methods do not block the calling thread.

  http://msdn.microsoft.com/en-us/library/system.net.webclient.uploadvaluestaskasync.aspx

• Question 92:

  HOTSPOT You are developing an application that includes a Windows Communication Foundation (WCF) service. The service includes a custom TraceSource object named ts and a method named DoWork. The application must meet the following requirements:

  

  Collect trace information when the DoWork() method executes.

  

  Group all traces for a single execution of the DoWork() method as an activity that can be viewed in the WCF Service Trace Viewer Tool.

  You need to ensure that the application meets the requirements.

  How should you complete the relevant code? (To answer, select the correct code segment from each drop-down list in the answer area.)

  Hot Area:

  

  

• Question 93:

  You need to store the values in a collection.

  The solution must meet the following requirements:

  The values must be stored in the order that they were added to the collection. The values must be accessed in a first-in, first-out order.

  Which type of collection should you use?

  A. SortedList
  B. Queue
  C. ArrayList
  D. Hashtable
  B. Queue

  ---

  The Queue class implements a queue as a circular array. Objects stored in a Queue are inserted at one end and removed from the other. Queues and stacks are useful when you need temporary storage for information; that is, when you might want to discard an element after retrieving its value. Use Queue if you need to access the information in the same order that it is stored in the collection.

  Reference: https://msdn.microsoft.com/enus/library/system.collections.queue(v=vs.110).aspx

• Question 94:

  DRAG DROP

  You are developing a C# application. The application includes a class named Rate. The following code segment implements the Rate class:

  

  You define a collection of rates named rateCollection by using the following code segment:

  Collection rateCollection = new Collection() ;

  The application receives an XML file that contains rate information in the following format:

  

  You need to parse the XML file and populate the rateCollection collection with Rate objects. You have the following code:

  

  Which code segments should you include in Target 1, Target 2, Target 3 and Target 4 to complete the code? (To answer, drag the appropriate code segments to the correct targets in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

  Select and Place:

  

  

• Question 95:

  You are testing an application. The application includes methods named CalculateInterest and LogLine. The CalculateInterest() method calculates loan interest. The LogLine() method sends diagnostic messages to a console window. The following code implements the methods. (Line numbers are included for reference only.)

  

  You have the following requirements:

  The CalculateInterest() method must run for all build configurations. The LogLine() method must run only for debug builds.

  You need to ensure that the methods run correctly.

  What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

  A. Insert the following code segment at line 01: #region DEBUG Insert the following code segment at line 10: #endregion
  B. Insert the following code segment at line 01: [Conditional("DEBUG")]
  C. Insert the following code segment at line 05: #region DEBUG Insert the following code segment at line 07: #endregion
  D. Insert the following code segment at line 10: [Conditional("DEBUG")]
  E. Insert the following code segment at line 01: #if DEBUG Insert the following code segment at line 10: #endif
  F. Insert the following code segment at line 10: [Conditional("RELEASE")]
  G. Insert the following code segment at line 05: #if DEBUG Insert the following code segment at line 07: #endif
  D. Insert the following code segment at line 10: [Conditional("DEBUG")]
  G. Insert the following code segment at line 05: #if DEBUG Insert the following code segment at line 07: #endif

  ---

  D: Also, it's worth pointing out that you can use [Conditional("DEBUG")] attribute on methods that return void to have them only executed if a certain symbol is defined. The compiler would remove all calls to those methods if the symbol is not defined:

  [Conditional("DEBUG")] void PrintLog() { Console.WriteLine("Debug info"); }

  void Test() { PrintLog(); } G: When the C# compiler encounters an #if directive, followed eventually by an #endif directive, it will compile the code between the directives only if the specified symbol is defined. Unlike C and C++, you cannot assign a numeric value to a symbol; the #if statement in C# is Boolean and only tests whether the symbol has been defined or not. For example, #define DEBUG #if DEBUG Console.WriteLine("Debug version"); #endif

  Reference: http://stackoverflow.com/questions/2104099/c-sharp-if-then-directives-for- debug-vs-release

• Question 96:

  You are developing an application that uses multiple asynchronous tasks to optimize performance. The application will be deployed in a distributed environment.

  You need to retrieve the result of an asynchronous task that retrieves data from a web service.

  The data will later be parsed by a separate task.

  Which code segment should you use?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  B. Option B

  ---

  Example:

  // Signature specifies Task

  async Task TaskOfTResult_MethodAsync()

  {

  int hours;

  // . . .

  // Return statement specifies an integer result.

  return hours;

  }

  // Calls to TaskOfTResult_MethodAsync

  Task returnedTaskTResult = TaskOfTResult_MethodAsync(); int intResult = await returnedTaskTResult;

  // or, in a single statement

  int intResult = await TaskOfTResult_MethodAsync();

  // Signature specifies Task

  async Task Task_MethodAsync()

  {

  // . . .

  // The method has no return statement.

  }

  // Calls to Task_MethodAsync

  Task returnedTask = Task_MethodAsync();

  await returnedTask;

  // or, in a single statement

  await Task_MethodAsync();

  Reference: Asynchronous Programming with Async and Await (C# and Visual Basic)

  https://msdn.microsoft.com/en-us/library/hh191443.aspx

• Question 97:

  HOTSPOT

  You have the following code:

  

  To answer, complete each statement according to the information presented in the code.

  Hot Area:

  

  

• Question 98:

  DRAG DROP

  You are developing a function that takes a parameter named aParam as a string input.

  You need to convert aParam to a Double. If the conversion cannot be completed, the function should return 0.

  

  How should you complete the code? To answer, drag the appropriate code elements to the correct targets in the answer area. Each code element may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

  Select and Place:

  

  

• Question 99:

  You are developing an application that includes methods named ConvertAmount and TransferFunds.

  You need to ensure that the precision and range of the value in the amount variable is not lost when the TransferFunds() method is called.

  Which code segment should you use?

  

  A. Option A
  B. Option B
  C. Option C
  D. Option D
  D. Option D

  ---

  The double keyword signifies a simple type that stores 64-bit floating-point values. The float keyword signifies a simple type that stores 32-bit floating-point values. References: https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/double

• Question 100:

  You are testing an application. The application includes methods named CalculateInterest and LogLine. The CalculateInterest() method calculates loan interest. The LogLine() method sends diagnostic messages to a console window. The following code implements the methods. (Line numbers are included for reference only.)

  

  You have the following requirements:

  The Calculatelnterest() method must run for all build configurations. The LogLine() method must run only for debug builds.

  You need to ensure that the methods run correctly.

  What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

  A. Insert the following code segment at line 01: #region DEBUG Insert the following code segment at line 10: #endregion
  B. Insert the following code segment at line 10: [Conditional("DEBUG")]
  C. Insert the following code segment at line 05: #region DEBUG Insert the following code segment at line 07: #endregion
  D. Insert the following code segment at line 01: #if DE30G Insert the following code segment at line 10: #endif
  E. Insert the following code segment at line 01: [Conditional(MDEBUG")]
  F. Insert the following code segment at line 05: #if DEBUG Insert the following code segment at line 07: #endif
  G. Insert the following code segment at line 10: [Conditional("RELEASE")]
  B. Insert the following code segment at line 10: [Conditional("DEBUG")]
  F. Insert the following code segment at line 05: #if DEBUG Insert the following code segment at line 07: #endif

  ---

  #if DEBUG: The code in here won't even reach the IL on release. [Conditional("DEBUG")]: This code will reach the IL, however the calls to the method will not execute unless DEBUG is on. http://stackoverflow.com/questions/3788605/if-debug-vs-conditionaldebug