You have the following code (line numbers are included for reference only):
You need to ensure that if an exception occurs, the exception will be logged.
Which code should you insert at line 28?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Explanation:
* XmlWriterTraceListener
Directs tracing or debugging output as XML-encoded data to a TextWriter or to a Stream, such as a
FileStream.
Answer is A
2
0
A will log it to the file Error.log in XML format.
B does not use the exception so will not log anything valuable.
C will write a message to the output window
D will broadcast a message but there are no listeners to actually write the log
So both A and C pass the requirements. A is not recommended to use (listener without source) and B is also not recommended to use (TraceSource is replacement of Trace).
8
0
Agree. Just a note:
C will write a message, but the second parameter of Trace.WriteLine is category, not output file. (however it’s possible to configure Trace to save everything into file)
1
0