Which of the following are value types? (Choose 3)
Decimal
String
System.Drawing.Point
Integer
Which is the correct declaration for a nullable integer?
Nullable(int) i = null;
Nullable<int> i = null;
int i = null;
int<Nullable> i = null;
Which of the following are reference types? (Choose 2)
Types declared Nullable
Exception
All types derived from System.Object
What is the correct order for catch clauses when handling different exception types?
Most general to most specific
Most likely to occur to least likely to occur
Most specific to most general
Least likely to occur to most likely to occur
The following scenarios, which would be a good reason to use the String- Builder class instead of the String class?
When building a string from shorter strings
When working with text data longer than 256 bytes
When you want to search and replace the contents of a string
When a string is a value type
Why should you close and dispose of resources in a finally block instead of a catch block?
It keeps you from having to repeat the operation in each catch.
A finally block runs whether or not an exception occurs.
The compiler throws an error if resources are not disposed of in the finally block.
You cannot dispose of resources in a catch block.
You create an application with built-in exception handling. For some types of exceptions, you want to add an event to the Event Log that specifies the line of code that initiated the exception. Which Exception property should you use?
Message
StackTrace
Source
Data
You pass a value-type variable into a procedure as an argument. The procedure changes the variable; however, when the procedure returns, the variable has not changed. What happened?
The variable was not initialized before it was passed in.
Passing a value type into a procedure creates a copy of the data.
The variable was redeclared within the procedure level.
The procedure handled the variable as a reference.
Which of the following statements are true? (Choose 2)
Inheritance defines a contract between types.
Interfaces define a contract between types.
Inheritance derives a type from a base type.
Interfaces derive a type from a base type.
Which of the following are examples of built-in generic types? (Choose 2)
Nullable
Boolean
EventHandler
