Which of the following statements is/are valid and correct?
1.char amessage[] = "lmnop";
amessage++;
2.char *pmessage = "abcde";
(*pmessage)++;
3.char amessage[] = "lmnop";
(*amessage)++;
4.char *pmessage = "abcde";
pmessage++;

What is the return value in case a file is not opened successfully by using fopen()?

Output as a result of the following code snippet? char *str1 = 'Hello World'; strcat(str1, '!'); printf('%s', str1);

Identify the incorrect statement.

Following code snippet? char i = 'A'; char *j; j = & i; *j = *j + 32; printf('%c',i);

Given the following array: char books[][40]={ 'The Little World of Don Camillo', 'To Kill a Mockingbird', 'My Family and Other Animals', 'Birds, Beasts and Relatives' }; what would be the output of printf('%c',books[2][5]);?

Bitwise operators can be used to generate random numbers.

In order to fetch the address of a variable, we write preceding _____ sign before variable name.

Which keyword is used to declare a variable so that the variable can be accessed by all the functions in all the modules of a program?

Which function is called at program startup?

Which declaration is not supported by C?