Constants, variables and data types

1

Which of the following does not generate data values that a program can use?

2

Which of the following statements is correct?

3

Which of the following statements is correct?

4

In computing terms, what is the difference between the data values 2 and "2"?

5

If we add the two floating point numbers 3.2 and 4.8, what is the result?

6

In terms of data values, what are characters?

7

What is a variable?

8

What is a global variable?

9

What is a declaration?

10

What is a string?