Strings Questions in C

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15.
What is the output of this C code?

    #include
    int main()
    {
        char *str = "hello, world";
        char *str1 = "hello, world";
        if (strcmp(str, str1))
            printf("equal");
        else
            printf("unequal");
    }
A. equal
B. unequal
C. Compilation error
D. Depends on the compiler

Answer: B
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16.
What is the output of this C code?

    #include
    #include
    int main()
    {
        char *str = "hello, world";
        char str1[9];
        strncpy(str1, str, 9);
        printf("%s %d", str1, strlen(str1));
    }
A. hello, world 11
B. hello, wor 9
C. Undefined behaviour
D. Compilation error

Answer: C
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17.
The return-type used in String operations are.

A. void only
B. void and (char *) only
C. void and int only
D. void, int and (char *) only

Answer: D
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18.
What is the output of this C code?

    #include
    int main()
    {
        char str[10] = "hello";
        char *p = strrchr(str, 'l');
        printf("%c\n", *(++p));
    }

A. l
B. o
C. e
D. Compilation error

Answer: B
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