Exercises

1.	What is DTD?
2.	What is XSD?
3.	DTD uses XML syntax and XSD does not. True or False?
4.	Which of the following are accurate statements: XSD does not have the capabilities of DTD entities. XSD can reference previously constructed script sections. DTD is more advanced than XSD. None of the above. All of the above.

Answers

1.	Exercise 1 solution Document Type Definition.
2.	Exercise 2 solution XML Schema Definition.
3.	Exercise 3 solution False. XSD uses XML syntax and DTD does not.
4.	Exercise 4 solution a. is correct because DTD entities are functionally richer than calls to previously constructed script sections of XSD. b. is correct. c. is incorrect because XSD is the next generation of DTD.