Switch Case Questions In C

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11.
Find the output of the following program?

 #include
    int main()
    {
        int a = 1;
        switch (a)
        case 1:
            printf("%d", a);
        case 2:
            printf("%d", a);
        case 3:
            printf("%d", a);
        default:
            printf("%d", a);
    }

A. No error, output is 1111
B.No error, output is 1
C. Compile time error, no break statements
D. Compile time error, case label outside switch statement

Answer: D
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12.
Find the output?

#include
    int main()
    {
        int a = 1;
        switch (a)
        {
        case a:
            printf("Case A ");
        default:
            printf("Default");
        }
    }

A. Output: Case A
B. Output: Default
C. Output: Case A Default
D. Compile time error

Answer: D
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13.
Find the output?

#include
    switch (ch)
    {
    case 'a':
    case 'A':
        printf("true");
    }

A. if (ch == ‘a’ && ch == ‘A’) printf(“true”);
B. if (ch == ‘a’)
    if (ch == ‘a’) printf(“true”);
C. if (ch == ‘a’ || ch == ‘A’) printf(“true”);
D. none of the mentioned

Answer: C
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