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Q21. - (Topic 2) 

You are developing an application that includes methods named EvaluateLoan, ProcessLoan, and FundLoan. The application defines build configurations named TRIAL, BASIC, and ADVANCED. 

You have the following requirements: 

The TRIAL build configuration must run only the EvaluateLoan() method. 

The BASIC build configuration must run all three methods. 

The ADVANCED build configuration must run only the EvaluateLoan() and 

ProcessLoan() methods. 

You need to meet the requirements. 

Which code segment should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:


Q22. - (Topic 1) 

You are developing an application by using C#. You provide a public key to the 

development team during development. 

You need to specify that the assembly is not fully signed when it is built. 

Which two assembly attributes should you include in the source code? (Each correct 

answer presents part of the solution. Choose two.) 

A. AssemblyFlagsAttribute 

B. AssemblyKeyFileAttribute 

C. AssemblyConfigurationAttribute 

D. AssemblyDelaySignAttribute 

Answer: B,D 


Q23. - (Topic 2) 

You are writing the following method (line numbers are included for reference only): 

You need to ensure that CreateObject compiles successfully. 

What should you do? 

A. Insert the following code at line 02: where T : new() 

B. Replace line 01 with the following code: public void CreateObject<T>() 

C. Replace line 01 with the following code: public Object CreateObject<T>() 

D. Insert the following code at line 02: where T : Object 

Answer:


Q24. - (Topic 1) 

You are debugging an application that calculates loan interest. The application includes the following code. (Line numbers are included for reference only.) 

You need to ensure that the debugger breaks execution within the CalculateInterest() method when the loanAmount variable is less than or equal to zero in all builds of the application. 

What should you do? 

A. Insert the following code segment at line 03: Trace.Assert(loanAmount > 0); 

B. Insert the following code segment at line 03: Debug.Assert(loanAmount > 0); 

C. Insert the following code segment at line 05: Debug.Write(loanAmount > 0); 

D. Insert the following code segment at line 05: Trace.Write(loanAmount > 0); 

Answer:

Explanation: 

By default, the Debug.Assert method works only in debug builds. Use the Trace.Assert method if you want to do assertions in release builds. For more information, see Assertions in Managed Code. http://msdn.microsoft.com/en-us/library/kssw4w7z.aspx 


Q25. - (Topic 1) 

You are developing an application by using C#. The application includes the following code segment. (Line numbers are included for reference only.) 

The DoWork() method must not throw any exceptions when converting the obj object to the IDataContainer interface or when accessing the Data property. 

You need to meet the requirements. Which code segment should you insert at line 07? 

A. var dataContainer = (IDataContainer)obj; 

B. dynamic dataContainer = obj; 

C. var dataContainer = obj is IDataContainer; 

D. var dataContainer = obj as IDataContainer; 

Answer:

Explanation: 

As - The as operator is like a cast operation. However, if the conversion isn't possible, as returns null instead of raising an exception. http://msdn.microsoft.com/en-us/library/cscsdfbt(v=vs.110).aspx 


Q26. 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. 

Answer: 


Q27. - (Topic 1) 

You are developing an application by using C#. The application includes the following code segment. (Line numbers are included for reference only.) 

The DoWork() method must throw an InvalidCastException exception if the obj object is not of type IDataContainer when accessing the Data property. 

You need to meet the requirements. Which code segment should you insert at line 07? 

A. var dataContainer = (IDataContainer) obj; 

B. var dataContainer = obj as IDataContainer; 

C. var dataContainer = obj is IDataContainer; 

D. dynamic dataContainer = obj; 

Answer:

Explanation: 

http://msdn.microsoft.com/en-us/library/ms173105.aspx 


Q28. - (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() 

Answer:

Explanation: The GC.KeepAlive method references the specified object, which makes it ineligible for garbage collection from the start of the current routine to the point where this method is called. The purpose of the KeepAlive method is to ensure the existence of a reference to an object that is at risk of being prematurely reclaimed by the garbage collector. The KeepAlive method performs no operation and produces no side effects other than extending the lifetime of the object passed in as a parameter. 


Q29. - (Topic 2) 

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 

Answer:


Q30. - (Topic 2) 

You need to write a method that retrieves data from a Microsoft Access 2013 database. The method must meet the following requirements: 

Be read-only. 

Be able to use the data before the entire data set is retrieved. 

Minimize the amount of system overhead and the amount of memory usage. 

Which type of object should you use in the method? 

A. DbDataAdapter 

B. unTyped DataSet 

C. OleDbDataAdapter 

D. DbDataReader 

Answer:

Explanation: The DbDataReader class reads a forward-only stream of rows from a data source. 

Reference: DbDataReader Class 

https://msdn.microsoft.com/en-us/library/system.data.common.dbdatareader(v=vs.110).aspx