Which of the following fields do not take up any space on the Web ...

[beccaep]

Which of the following fields do not take up any space on the Web page, and can contain only a name and a value?
 
  A) radio buttons
  B) check boxes
  C) spin buttons
  D) sliders
  E) hidden fields

Question 2

Give two examples of primary keys that can be used to identify a person or thing.
 
  What will be an ideal response?

[Briannahope]

Answer to Question 1

E

Answer to Question 2

Students may have a wide range of examples for this question. In the US, the most common primary key is the social security number. Other examples include a drivers license number or school ID number. Items can also have primary keys. Examples could include serial numbers on manufactured goods, VIN numbers on cars and lot numbers on medications.