ITPEC FE Morning October 2023 Question 10

Which of the following is an appropriate description concerning XML?

a)It is based on HTML and expands its functions.b)It requires a dedicated editor for writing XML documents.c)It integrates the logical structure and display style of documents.d)It enables users to define the attribute information and logical structure of documents by using the user’s own tags.

Explanation

Users define their own tags for a document's structure and attributes — XML is extensible: it fixes the syntax, not the tag set.

XML (Extensible Markup Language) is a W3C recommendation derived from SGML. An author or application chooses the element and attribute names, so a document can describe its own logical structure, for example <order> containing <item>. What the data looks like on screen is left to separate style sheets (CSS or XSL).

Answer (d)

Why not others:

•(a) — XML is a simplified subset of SGML, not an extension of HTML; HTML has a fixed tag set for display
•(b) — an XML document is plain text and can be written with any text editor
•(c) — XML separates logical structure from presentation rather than combining them; styling is applied through CSS or XSL

Key rule: XML describes what the data is with user-defined tags; how it is displayed is a separate style sheet.

Algorithm and Programming · AI-written, may contain errors

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