Technical interview questions and answers are crucial in XML Interviews because XML is widely used for data storage, configuration, API communication, and document structuring. Many companies use XML as a standard format in web applications, making it an important topic in technical interviews. Companies like TCS, Wipro, Infosys, Cognizant, and Accenture often ask XML questions to check whether candidates understand syntax, DTD, XSD, parsing, and real-time use cases. This guide provides fully solved XML interview questions with simple explanations suitable for freshers, students, and job seekers. These questions will help you perform confidently in technical rounds and placement interviews.
Web developers working with markup languages should strengthen their foundation in HTML structure and XHTML standards for document formatting
Showing 10 of 40 questions
31. What characters are allowed in a qualified name?
The prefix can contain any character that is allowed in the Name [5] production in XML 1.0 except a colon. The same is true of the local name. Thus, there can be at most one colon in a qualified name -- the colon used to separate the prefix from the local name.
32. What is an XML namespace prefix?
An XML namespace prefix is a prefix used to specify that a local element type or attribute name is in a particular XML namespace. For example, in the following, the serv prefix specifies that the Address element type name is in the http://www.foo.com/ito/addresses namespace:
33. What characters are allowed in an XML namespace prefix?
The prefix can contain any character that is allowed in the Name [5] production in XML 1.0 except a colon.
34. Can I use the same prefix for more than one XML namespace?
Yes.
35. What happens if there is no prefix on an element type name?
If a default XML namespace declaration is in scope, then the element type name is in the default XML namespace. Otherwise, the element type name is not in any XML namespace.
36. What is an XML namespace name?
An XML namespace name is a URI that uniquely identifies the namespace. URIs are used because they are widely understood and well documented. Because people may only allocate URIs under their control, it is easy to ensure that no two XML namespaces are identified by the same URI.
37. Can I resolve the URI used as an XML namespace name?
Yes.
38. Can I use a relative URI as a namespace name?
Yes. However, such usage is deprecated, so you should never do it.
39. How do I configure an XPointer processor?
There is no required configuration for the XPointer Framework. The uberjar command line utility provides some configuration options. Applications configure individual XPointer processors when they obtain an instance from an appropriate XPointerProcessor factory method.
40. What three essential components of security does the XML Signatures provide?
authentication, message integrity, and non-repudiation. In addition to signature information, an XML Signature can also contain information describing the key used to sign the content.