all this question is realated to c++ course. please answer all

Which is incorrect?

		The value of count is 0; limit is 10. The following evaluates as true: (count == 0)&&(limit < 20)
		You want to determine whether time has run out. The following code correctly implements this. !time > limit
		The if, while and for statements control only one statement.
		The value of count is 0; limit is 10. The following evaluates as true: count == 0 && limit < 20

10 points

QUESTION 2

Which of the following loop statements is guaranteed to iterate the body of the loop at least once?

		all listed
		do {body} while(control)
		for(initialize;test:update){body};
		while(control) {body};

10 points

QUESTION 3

In a switch statement, when a break statement is encountered, an immediate transfer of control is made to

		the else statement
		the default case of the switch statement
		a goto statement
		the statement beyond the end of the switch statement

10 points

QUESTION 4

A switch statement must have

		more than one non-default case
		a default case
		None listed
		a break statement

10 points

QUESTION 5

Regarding the comma operator, which statement is incorrect?

		Results in the value equal to the value of the first expression in the list
		Expressions are evaluated in order defined by the compiler
		ANSI C++ Standard specifies that expressions must be evaluated left to right
		Is used to separate a list of expressions