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 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 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 need to create a method that can be called by using a varying number of parameters.
What should you use?

HOTSPOT
You have the following code (line numbers are included for reference only):

To answer, complete each statement according to the information presented in the code.

HOTSPOT
You have the following code:

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

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.

HOTSPOT
You have the following code:

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

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.)

You are developing an application.
The application contains the following code segment (line numbers are included for reference only):

When you run the code, you receive the following error message: “Cannot implicitly convert type
‘object” to ‘inf. An explicit conversion exists (are you missing a cast?).”
You need to ensure that the code can be compiled.
Which code should you use to replace line 05?