MCSD.NET - 70-300 Interview Question:

Explain The invoice creation process must be dynamically monitored to track the following information:
Average number of seconds to create an invoice
Number of invoices created per second
Total number of successfully created invoices
Total number of failed attempts to create an invoice
Monitoring should occur with a minimum of development effort. What should you do?
A. Write statistics to the database and use SQL Query Analyzer to dynamically monitor the
statistics
B. Create a removable Microsoft .NET class to contain statistics. Configure the class as singleton
class. Write a utility that retrieves statistical information from this class
C. Write statistics to the application event log
D. Use custom performance counters