DRAG DROP
You develop an application that displays information from log files when errors occur. The application will
prompt the user to create an error report that sends details about the error and the session to the administrator.
When a user opens a log file by using the application, the application throws an exception and closes.
The application must preserve the original stack trace information when an exception occurs during this
process.
You need to implement the method that reads the log files.
You have the following code:

Which code segments should you include in Target 1 and Target 2 to complete the code? (To answer, drag the
appropriate code segments to the correct locations 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:

You are developing an application that includes a class named UserTracker. The application includes the
following code segment. (Line numbers are included for reference only.)

You need to add a user to the UserTracker instance.
What should you do?

You are developing an application that uses structured exception handling. The application includes a class
named ExceptionLogger.
The ExceptionLogger class implements a method named LogException by using the following code segment:
public static void LogException(Exception ex)
You have the following requirements:Log all exceptions by using the LogException() method of the ExceptionLogger class.
Rethrow the original exception, including the entire exception stack.
You need to meet the requirements.
Which code segment should you use?

You are modifying an application that processes leases. The following code defines the Lease class. (Line
numbers are included for reference only.)

Leases are restricted to a maximum term of 5 years. The application must send a notification message if a
lease request exceeds 5 years.
You need to implement the notification mechanism.
Which two actions should you perform? (Each correct answer presents part of the solution.
Choose two.)

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?

HOTSPOT
You are implementing a library method that accepts a character parameter and returns a string.
If the lookup succeeds, the method must return the corresponding string value. If the lookup fails, the method
must return the value “invalid choice.”
You need to implement the lookup algorithm.
How should you complete the relevant code? (To answer, select the correct keyword in each drop-down list in
the answer area.)
Hot Area:

You are creating a console application by using C#.
You need to access the application assembly.
Which code segment should you use?

You are implementing a method named Calculate that performs conversions between value types and
reference types. The following code segment implements the method. (Line numbers are included for reference
only.)

You need to ensure that the application does not throw exceptions on invalid conversions.
Which code segment should you insert at line 04?

You are creating a class named Employee. The class exposes a string property named EmployeeType. The
following code segment defines the Employee class. (Line numbers are included for reference only.)

The EmployeeType property value must be accessed and modified only by code within the Employee class or
within a class derived from the Employee class.
You need to ensure that the implementation of the EmployeeType property meets the requirements.
Which two actions should you perform? (Each correct answer represents part of the complete solution. Choose
two.)

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?