C# Collections MCQs

Question 11: Which of the following is FIFO (First In First Out) collection?

• Queue
• Stack
• SortedList
• ArrayList

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Question 12: What will be the output of the following code?

int[ , ] x = new int[ 3, 2 ]; 
Console.WriteLine(x.Length);

• 3
• 6
• 5
• 7

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Question 13: Array can be resized dynamically in C#.

• True
• False

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Question 14: What will be the output of the following code?

int[][][] arr = new int[2][][] 
{
    new int[2][]  
    { 
        new int[3] { 1, 2, 3},
        new int[2] { 4, 5} 
    },
    new int[1][]
    { 
	    new int[3] { 7, 8, 9}
    }
};

Console.WriteLine(arr[1][0][1]); 

• 2
• 4
• 5
• 8

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Question 15: Indexer in C# is a special type of _________.

• Method
• Array
• Property
• Constructor

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