What is the purpose of the "out" keyword in C# method parameters?
A. To pass parameters by reference
B. To pass parameters by value
C. To indicate the return value
D. To indicate an output parameter
Answer: Option D
A. To pass parameters by reference
B. To pass parameters by value
C. To indicate the return value
D. To indicate an output parameter
Answer: Option D
What is the purpose of the "using" keyword in C#?
A. To define namespaces
B. To declare variables
C. To import external libraries
D. To create instances of classes
What does the "break" keyword do in a switch statement?
A. Exits the switch statement
B. Skips the current iteration
C. Continues to the next iteration
D. Throws an exception
Which of the following is NOT a valid C# access modifier?
A. public
B. internal
C. protected
D. private
What is the purpose of the "readonly" keyword in C#?
A. To declare a constant
B. To prevent a variable from changing
C. To allow a variable to be changed
D. To declare a static variable
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