You are implementing a method named FloorTemperature 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 developing an application that uses structured exception handling. The application
includes a class named Logger. The Logger class implements a method named Log by
using the following code segment:
public static void Log(Exception ex) { }

You have the following requirements:
Log all exceptions by using the Log() method of the Logger class.
Rethrow the original exception, including the entire exception stack.
You need to meet the requirements. Which code segment should you use?

DRAG DROP
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.
How should you complete the relevant 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.)

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

You need to add a book to the BookTracker instance.
What should you do?

DRAG DROP
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 entire 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.)