Perl Scalar Type Variable - Quiz Explanation

The correct answers are indicated below, along with the text that explains the correct answers.

1.	Which of the following is a correct scalar variable name? Please select the best answer.
	A.	`firstName`
	B.	`$1firstName`
	C.	`$firstName`
	The correct answer is C. All scalar variables are introduced by the `$` symbol. The actual name of the variable may include any of the characters in the ASCII set, alpha (a-z, A-Z), numeric (0-9), and the underscore ( `_` ) with the exception that the first character may not be numeric.

2.	What is the difference between a scalar value and a scalar variable? Please select the best answer.
	A.	A scalar value has a name associated with it
	B.	A scalar variable has a name associated with it
	C.	A scalar variable can refer to two-dimensional data
	The correct answer is B. A scalar variable is simply a scalar value that has a name associated with it. Scalar values and scalar variables are always one-dimensional.