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21
What does the 'params' keyword do in C# method parameters?
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Answer: Option D
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22
In C#, what is the role of the 'finally' block in a try-catch-finally statement?
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Answer: Option A
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23
What is the correct syntax to define a multi-line comment in C#?
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Answer: Option D
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24
What is the purpose of the 'static' keyword in C#?
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Answer: Option C
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25
What is the result of the expression 10 % 3 in C#?
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Answer: Option B
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26
Which of the following is NOT a valid C# comment style?
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Answer: Option B
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27
What is the default value of a boolean variable in C# if not explicitly initialized?
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Answer: Option C
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28
What does the 'using' directive do in C#?
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Answer: Option D
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29
In C#, what is the purpose of the 'this' keyword?
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Answer: Option A
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30
What is the correct way to declare a constant in C#?
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Answer: Option D
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