What is the main purpose of an XML validator?
C
To check if an XML document follows a defined structure or schema
D
To generate random XML data
Analysis & Theory
An XML validator checks whether the XML document is **valid** based on a DTD or XSD schema.
Which of the following is NOT a reason to use XML validation?
A
To ensure data integrity
B
To confirm the document follows rules
C
To verify against a schema
Analysis & Theory
Validation is not used for format conversion but for **structure and content checking**.
What does it mean for an XML document to be 'well-formed'?
A
It validates against an XSD
C
It follows basic XML syntax rules
D
It is formatted for a browser
Analysis & Theory
A **well-formed** XML document follows **basic XML syntax rules** (e.g., proper nesting, closed tags).
Which of the following defines the rules for XML validation?
Analysis & Theory
**DTD (Document Type Definition)** and **XSD (XML Schema Definition)** define the structure that an XML document must follow.
Which of these is more powerful for validation: DTD or XSD?
Analysis & Theory
**XSD** is more powerful because it supports **data types**, namespaces, and more complex constraints.
What happens if an XML document is well-formed but not valid?
A
It can be used without error
B
It follows syntax rules but breaks structural rules
C
It will crash the browser
Analysis & Theory
A document that is **well-formed but not valid** follows syntax rules but **violates schema rules**.
Which tool or language is often used to validate XML against an XSD file?
D
XML parser with XSD support
Analysis & Theory
**XML parsers** with XSD support (e.g., in Java, Python, browsers) are used for **validating XML**.
In XML, what does the `<!DOCTYPE>` declaration relate to?
Analysis & Theory
`<!DOCTYPE>` is used to link an XML document to a **DTD** for validation.
Which of the following can validate both structure and data types in XML?
Analysis & Theory
**XSD** supports not only structure validation but also **data types**, making it more robust than DTD.
What is the result of a failed XML validation?
A
The XML still loads normally
B
The XML is auto-corrected
C
An error is reported and processing may stop
D
The document is reformatted
Analysis & Theory
When validation fails, **an error is reported** and the XML may not be processed as intended.