XML and Web Markup Technologies

All five statements correctly describe the relationship between XML and HTML. XML and HTML have different goals: XML describes data (what it IS), HTML displays data (how it LOOKS). XML is not a replacement for HTML - they serve complementary purposes. Statement 5 reinforces statements 3 and 4.

XML stands for EXtensible Markup Language. The 'X' stands for 'Extensible' (not Extended, Extension, or Extensional), meaning users can define their own tags and document structures. This extensibility is XML's key feature.

XML was indeed designed to transport and store data, focusing on what data IS rather than how it looks. This is fundamental to XML's purpose - separating data content from presentation. The statement is fully correct.

XML stands for EXtensible Markup Language. The 'X' stands for 'Extensible' (not Extended, Extension, or Extensional), meaning users can define their own tags and document structures. This is the exact same question as 134392.

SAX (Simple API for XML) is an event-based XML parser that reads XML sequentially and triggers events (startElement, endElement, characters) as it encounters tags. DOM builds a tree in memory, JAXP is an API, and JAXB is for XML-Java binding.

XSLT documents are indeed well-formed XML that define transformation rules. They require: (1) an XML input document to transform, and (2) an XSLT processing engine to apply the transformation. The statement accurately describes XSLT fundamentals.

All three statements about CDATA are correct: (1) CDATA contains unparsed character data, (2) the string ']]>' cannot appear because it marks the end of CDATA, and (3) CDATA sections cannot be nested within each other.

All the listed technologies (XHTML, WSDL, WAP/WML, RSS, RDF/OWL, SMIL) are built using XML syntax. XHTML reformulates HTML in XML, WSDL defines web services using XML, WML is WAP's markup language in XML, RSS feeds use XML, RDF/OWL are XML-based semantic web languages, and SMIL describes multimedia in XML format.

XML comments follow the same syntax as HTML and SGML comments. They start with . This is the standard way to add comments that XML parsers ignore during processing.

A well-formed XML document must satisfy ALL the listed rules: exactly one root element, all tags properly closed (including empty elements), proper nesting hierarchy, case-sensitive tag names, and quoted attribute values. Any violation makes the document malformed.

All four statements are correct. DTDs provide a validation framework, are plain text files, outline elements/attributes, and are specified in the XML document's DOCTYPE declaration.

SAX (Simple API for XML) is event-based and streams through the document without loading it entirely into memory. DOM builds a complete tree structure in memory, making it inefficient for huge files. SAX is optimal when you need to search or extract specific data from large XML files.

SAX stands for Simple API for XML. It's an event-driven API for parsing XML documents that doesn't build a tree structure in memory, making it memory-efficient for large files.

DOM (Document Object Model) is tree-based - it parses the entire XML document and builds an in-memory tree structure representing the document hierarchy. SAX is event-based and streams through the document sequentially.

DOM stands for Document Object Model. It represents XML and HTML documents as a tree structure of objects that can be programmatically accessed and manipulated by programming languages.