1. Question:What is the use of a ‘\0’ character? 

    Answer
    It is referred to as a terminating null character, and is used primarily to show the end of a string value.

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  2. Question:How do you determine the length of a string value that was stored in a variable? 

    Answer
    To get the length of a string value, use the function strlen(). For example, if you have a variable named FullName, you can get the length of the stored string value by using this statement: I = strlen(FullName); the variable I will now have the character length of the string value.

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  3. Question:Which function in C can be used to append a string to another string? 

    Answer
    The strcat function. It takes two parameters, the source string and the string value to be appended to the source string.

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