Primary use of XML — evaluate the assertion: “Web page display is the most important application of XML.” Choose whether this is correct or incorrect, considering XML’s broader ecosystem.

Introduction / Context:
XML is a general-purpose markup language used for structured information interchange, configuration, content repositories, and publishing workflows. While XML can be used to generate web pages (often via XSLT), modern web page display is dominated by HTML and CSS. This question checks whether you recognize XML’s primary role beyond directly rendering web pages.

Given Data / Assumptions:

• Web browsers natively render HTML; XML may be transformed to HTML or consumed by applications.
• XML is heavily used in enterprise integration, document formats (OOXML, ODF), configuration (Ant, Maven, Spring), and data exchange.
• XHTML (an XML serialization of HTML) existed but is not the dominant deployment format today.

Concept / Approach:
The “most important application” of XML is not direct page display but interoperable data/document exchange and processing. XML’s strengths—clear structure, validation via XSD, transformations via XSLT, and standardized querying via XPath/XQuery—make it foundational for pipelines, services, and archival. Therefore, the statement is incorrect.

Step-by-Step Solution:

Verification / Alternative check:
Survey real-world systems: XML appears in feeds, office documents, service payloads, and backend configs far more than as directly-rendered web pages.

Why Other Options Are Wrong:

• XHTML-specific claims are too narrow.
• Browser engines and DTDs do not change XML’s principal application domains.

Common Pitfalls:
Equating “web technologies” with “web page display”; overlooking server-side processing where XML is most prevalent.

Final Answer:
Incorrect