Miscellaneous in C Sharp MCQ question and answer with solution | C# Program MCQs

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41.
Accessibility modifiers defined in a class are?

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42.
What will be the output of the following C# code snippet?
class Program
{
    static void Main(string[] args)
    {
        int[] nums = {3 ,1 ,2 ,5 ,4};
        var ltAvg = from n in nums
                    let x = nums.Average()
                    where n < x
                    select n;
        Console.WriteLine("The average is " + nums.Average());
        Console.ReadLine();
    }
}

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43.
What is mutex?

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46.
What will be the output of the following C# code snippet?
class Program
{
    static void Main(string[] args)
    {
        String c = "Hello i love Csharp";
        Boolean var;
        var = c.StartsWith("hello");
        Console.WriteLine(var);
        Console.ReadLine();
    }
}

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47.
What will be the following C# code snippet specify?
class MyClass
{
    char chrs = 'A' ;
    public IEnumerator GetEnumerator()
    {
        for (int i = 20; i >=0; --i)
        if (i == 10) yield break;
        yield return (char)((chrs + i));
    }
}
class Program
{
    static void Main(string[] args)
    {
        MyClass mc = new MyClass();
        foreach (char ch in mc)
        Console.Write(ch + " ");
        Console.WriteLine();
        Console.ReadLine();
    }
}

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48.
What will be the output of the following C# code snippet?
class Program
{
    static void Main(string[] args)
    {
        String s1 = "one";
        String s2 = string.Concat(s1 + " " + "two");
        Console.WriteLine(s2);
        Console.ReadLine();
    }
}

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49.
What will be the output of the following C# code snippet?
class UnsafeCode
{
    unsafe static void Main()
    {
        int* ptrs = stackalloc int[3];
        ptrs[0] = 1;
        ptrs[1] = 2;
        ptrs[2] = 3;
        for (int i = 2; i >= 0; --i)
        {
            ptrs[i] = ptrs[i]* 3;
            ptrs[i] = ptrs[i] + 4;
            Console.WriteLine(ptrs[i]);
        }
        Console.ReadLine();
    }
}

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