Phi quân sự Vùng 2 (DMZ2). Một nhóm các máy chủ trên một đoạn mạng trung gian bảo mật, cung cấp các ứng dụng và dịch vụ dành cho nhân viên đá quý không gian và khách hàng của họ đáng tin cậy nhất, nhà cung cấp, và như vậy. | 114 apter 3 Review Questions 1. What is the difference between an application and an XML application 2. What are the names of the four basic operators in a validating parser 3. What are the two most fundamental components of an XML document 4. Match the following a. Comments i. Speak to the application b. Processing instructions ii. Speak to the parser c. Document type declarations iii. Speak to human beings 5. What are the two types of empty elements 6. What is the difference between attributes and pseudo-attributes 7. What are the components of a qualified name resulting from a prefix namespace declaration 8. Which namespace declaration turns off previous namespace declarations a. Prefix b. Empty string c. Default d. None of the above 9. General entity references deal with entities used for constructing while parameter entity references deal with entities used for constructing. 10. What are the five characters reserved for markup characters in XML and what are their corresponding predefined entities 11. What are the six W3C well-formedness constraints 12. What is the definition of a valid XML document Anatomy of an XML Document 115 Answers to Review Questions 1. Used alone the term application means a program or group of programs intended for end users and designed to access and manipulate XML documents. An XML application is one of several terms used to refer to a derivative markup language created according to XML . 2. The four basic operators in a validating parser are a content handler an error handler a DTD and schema handler and an entity resolver. 3. The two most fundamental components of an XML document are the prolog and the data instance. 4. a. and iii. b. and i. c. and ii. 5. Those that are termed declared empty and those that are termed elements with no content. 6. Attributes appear in the data instance component within the start tags of elements. They provide additional description of an element or its data. Pseudo-attributes look similar to .
