C Programming Quiz

Example Questions From the Test

• 1What is the value of sizeof(s) in this declaration? char s[] = ""cat"";
  • 3, because only the visible letters count
  • 4, because the array also contains the terminating null character
  • 5, because the declaration adds a length byte
  • The size of a char pointer
• 2What happens when this condition is evaluated with x equal to 0? if (x != 0 && 10 / x > 2)
  • Both operands are evaluated, causing division by zero
  • The condition is true because the second operand is ignored
  • The condition is false, and 10 / x is not evaluated
  • The code fails to compile because && cannot contain arithmetic
• 3What does a directive such as #define MAX 100 primarily do in C?
  • It creates a variable named MAX at runtime
  • It instructs the linker to find a symbol named MAX
  • It defines a macro handled during preprocessing
  • It creates a type-checked constant object in memory