HOTSPOT
You are building a data access layer in an application that contains the following code:

For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Hot Area:

DRAG DROP
You are creating a method that saves information to a database.
You have a static class named LogHelper. LogHelper has a method named Log to log the exception.
You need to use the LogHelper Log method to log the exception raised by the database server. The solution
must ensure that the exception can be caught by the calling method, while preserving the original stack trace.
How should you write the catch block? (Develop the solution by selecting and ordering the required code
snippets. You may not need all of the code snippets.)
Select and Place:

HOTSPOT
You have the following code:

For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Hot Area:

You are developing an application that will read data from a text file and display the file contents.
You need to read data from the file, display it, and correctly release the file resources.
Which code segment should you use?

You are modifying an existing application that manages employee payroll. The application includes a class
named PayrollProcessor. The PayrollProcessor class connects to a payroll database and processes batches of
paychecks once a week.
You need to ensure that the PayrollProcessor class supports iteration and releases database connections after
the batch processing completes.
Which two interfaces should you implement? (Each correct answer presents part of the complete solution.
Choose two.)

You are developing a method named GenerateHash that will create the hash value for a file. The method
includes the following code. (Line numbers are included for reference only.)

You need to return the cryptographic hash of the bytes contained in the fileBuffer variable.
Which code segment should you insert at line 05?

You are developing code for an application that retrieves information about Microsoft .NET Framework
assemblies.
The following code segment is part of the application (line numbers are included for reference only):

You need to insert code at line 04. The code must load the assembly. Once the assembly is loaded, the code
must be able to read the assembly metadata, but the code must be denied access from executing code from
the assembly.
Which code segment should you insert at line 04?

You are developing an application that will parse a large amount of text.
You need to parse the text into separate lines and minimize memory use while processing data.
Which object type should you use?

You are developing a class named Scorecard. The following code implements the Scorecard class. (Line
numbers are included for reference only.)

You create the following unit test method to test the Scorecard class implementation:

You need to ensure that the unit test will pass.
What should you do?

An application uses X509 certificates for data encryption and decryption. The application stores certificates in
the Personal certificates collection of the Current User store. On each computer, each certificate subject isunique.
The application includes a method named LoadCertificate. The LoadCertificate() method includes the following
code. (Line numbers are included for reference only.)

The LoadCertificate() method must load only certificates for which the subject exactly matches the searchValue
parameter value.
You need to ensure that the LoadCertificate() method loads the correct certificates.
Which code segment should you insert at line 06?