C Programming

Which of the following is not a valid C variable name?

• int number;

• float rate;

• int variable_count;

• int $main;

All keywords in C are in ____________

• LowerCase letters

• UpperCase letters

• CamelCase letters

• None of the mentioned

Which is valid C expression?

• int my_num = 100,000;

• int my_num = 100000;

• int my num = 1000;

• int $my_num = 10000;

Which of the following cannot be a variable name in C?

• volatile

• true

• friend

• export

Which of the following declaration is not supported by C language?

• String str;

• char *str;

• float str = 3e2;

• Both “String str;” and “float str = 3e2;”

The C-preprocessors are specified with _________ symbol.

• #

• $

• ” ”

• &

What is an output of the following code.

• 65666768

• BCDE

• Compile time error

• ABCD

 What is the result of logical or relational expression in C?

• True or False

• 0 or 1

• Positive Integers

• None of the mentioned

What will be printed on the screen?

• 0 10

• No Output

• Compile time error

• 0 0

• 254 times

• 255 times

• 256 times

• infinite times