70-548 Designing and Developing Windows-Based Applications by Using the Microsoft .NET Framework Brain Dump

Demo Question 5.

You work as the Enterprise application developer at EliteCertify.com. The EliteCertify.com network consists of a single Active Directory domain named EliteCertify.com. All servers in the domain run Windows Server 2003 and all client computers run Microsoft Windows XP Professional. Your responsibilities at EliteCertify.com include the deployment and support of Applications. You are currently evaluating one of the Microsoft Windows Forms applications for EliteCertify.com. This application was developed to allow the EliteCertify.com customers to scan checks and submit the images to financial institutions electronically for processing purposes. The application is deployed to dual processor computers. You scan five checks with check number that ranges from 901 to 905 and obtained the following performance results illustrated in the table below: You now need to analyze the results. What conclusion can you draw?

A. Too much processor time is used.
B. There is a synchronization problem.
C. There is a memory leak.
D. Too much memory is used.


Display Answer

Answer: C

Explanation: The table shows clearly that the memory usage increases with 4 K each time a check is scanned. As the number of check increases, memory usage increases. If this persists then there will not be enough memory available on the computer that runs the application. Thus there is a definite memory leak. Incorrect answers: A. The average CPU usage is only 52%. This is due to the fact that the application is deployed to dual-processor computers. This means that it is not a case of too much processor time being used. B. Synchronization issues cannot be deduced from the results in the table. Thus you cannot assume that it is a synchronization problem. D. Only 4,672 K of memory is being used initially. Apart from the memory leak, the memory consumption itself is not problematic.