Q1. - (Topic 1) 

You are developing an application by using C#. 

The application includes an object that performs a long running process. 

You need to ensure that the garbage collector does not release the object's resources until 

the process completes. 

Which garbage collector method should you use? 

A. WaitForFullGCComplete() 

B. WaitForFullGCApproach() 

C. KeepAlive() 

D. WaitForPendingFinalizers() 

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Q2. - (Topic 2) 

You need to write a console application that meets the following requirements: 

. If the application is compiled in Debug mode, the console output must display Entering debug mode. . If the application is compiled in Release mode, the console output must display Entering release mode. 

Which code should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

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Q3. - (Topic 1) 

You use the Task.Run() method to launch a long-running data processing operation. The data processing operation often fails in times of heavy network congestion. 

If the data processing operation fails, a second operation must clean up any results of the first operation. 

You need to ensure that the second operation is invoked only if the data processing operation throws an unhandled exception. 

What should you do? 

A. Create a TaskCompletionSource<T> object and call the TrySetException() method of the object. 

B. Create a task by calling the Task.ContinueWith() method. 

C. Examine the Task.Status property immediately after the call to the Task.Run() method. 

D. Create a task inside the existing Task.Run() method by using the AttachedToParent option. 

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Q4. - (Topic 1) 

You are creating an application that manages information about your company's products. The application includes a class named Product and a method named Save. 

The Save() method must be strongly typed. It must allow only types inherited from the Product class that use a constructor that accepts no parameters. 

You need to implement the Save() method. Which code segment should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

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Q5. - (Topic 2) 

You are developing an application. 

You need to declare a delegate for a method that accepts an integer as a parameter, and then returns an integer. 

Which type of delegate should you use? 

A. Action<int> 

B. Action<int, int> 

C. Func<int, int> 

D. Func<int> 

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Q6. DRAG DROP - (Topic 1) 

You are developing an application that will include a method named GetData. The 

GetData() method will retrieve several lines of data from a web service by using a 

System.IO.StreamReader object. 

You have the following requirements: 

. The GetData() method must return a string value that contains the first line of the response from the web service. . The application must remain responsive while the GetData() method runs. 

You need to implement the GetData() method. 

How should you complete the relevant code? (To answer, drag the appropriate objects to the correct locations in the answer area. Each object 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.) 

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Q7. DRAG DROP - (Topic 2) 

You are developing an application that implements a set of custom exception types. You declare the custom exception types by using the following code segments: 

The application includes a function named DoWork that throws .NET Framework exceptions and custom exceptions. The application contains only the following logging methods: 

The application must meet the following requirements: 

. When ContosoValidationException exceptions are caught, log the information by using the static void Log (ContosoValidationException ex) method. . When ContosoDbException or other ContosoException exceptions are caught, log the information by using the static void Log(ContosoException ex) method. 

You need to meet the requirements. 

You have the following code: Which code segments should you include in Target 1, Target 2 and Target 3 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.) 

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Q8. - (Topic 2) 

You are troubleshooting an application that uses a class named FullName. The class is decorated with the DataContractAttribute attribute. The application includes the following code. (Line numbers are included for reference only.) 

You need to ensure that the entire FullName object is serialized to the memory stream object. 

Which code segment should you insert at line 09? 

A. binary.WriteEndElement(); 

B. binary.NriteEndDocument(); 

C. ms.Close() ; 

D. binary.Flush(); 

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Q9. - (Topic 2) 

You are creating an application that reads from a database. 

You need to use different databases during the development phase and the testing phase by using conditional compilation techniques. 

What should you do? 

A. Configure the Define TRACE constant setting in Microsoft Visual Studio. 

B. Decorate the code by using the [DebuggerDisplay("Mydebug")] attribute. 

C. Configure the Define DEBUG constant setting in Microsoft Visual Studio. 

D. Disable the strong-name bypass feature of Microsoft .NET Framework in the registry. 

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Q10. HOTSPOT - (Topic 2) 

A developer designs an interface that contains the following code: 

For each of the following statements, select Yes if the statement is true. Otherwise, select No. 

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