XML Interview Questions and Answers
Question - 81 : - What are the three components in SOAP?
Answer - 81 : -
It consists of an envelope, a set of encoding rules, and a convention for representing remote procedure calls.
Question - 82 : - What is XML parser function?
Answer - 82 : - It is used to convert an XML file or document into the XML DOM object which is usually written in JavaScript.
Question - 83 : - What is CDATA in XML?
Answer - 83 : - CDATA stands for character data. Characters like ‘<’ and ‘>’ are not allowed in XML. CDATA starts with . CDATA is an unparsed character data that cannot be parsed by the XML parser.
Question - 84 : - How are comments used in XML?
Answer - 84 : -
Comments are displayed as . It is similar to HTML. It can be used for a single line or multiple lines.
Question - 85 : - What is the difference between a simple element and a complex element?
Answer - 85 : -
Simple elements cannot be left empty. It contains fewer attributes, child elements, etc. Simple elements are text-based elements. Complex elements can contain sub-elements, empty elements, etc. The complex element can hold multiple attributes and elements.
Question - 86 : - What is XSNL?
Answer - 86 : -
XSNL stands for XML Search Neutral Language. This language acts between the meta-search interface and the targeted system.
Question - 87 : - What is SAX in XML?
Answer - 87 : -
SAX stands for Simple API for XML. It is a sequential access parser.
It provides a mechanism of reading data from an XML document. It is said to be an alternative to DOM. DOM operates on the documents as a whole, SAX parsers operate on each piece of the XML document sequentially.
SAX consumes less memory. It cannot be used to write an XML document.
Question - 88 : - What are XML naming rules?
Answer - 88 : -
Naming rules are:
- Element names must start with a letter or underscore.
- Element names are case sensitive.
- Element names cannot start with the letters XML.
- Element names can contain letters, digits, hyphens, underscore, and periods.
- Element names cannot contain spaces.
Answer - 89 : -
var xhttp= newXML Httprequest();
Xhttp.onreadystatechange=function();
{ If this.readystate==4&& this.status==200)
{ Action to be performed when document is ready;
Document.getelementbyID(“Demo”)
Innerhtml=xhttp.responseText;}};
Question - 90 : - What is XML Httprequest? What are its advantages?
Answer - 90 : -
All modern browsers have a built-in XML Httprequest object to request for data from a server.
Its advantages are as follows:
- Updating a web page without reloading the page.
- Request data from a server
- Receive data from a server after the page has been loaded.
- Send data to a server in the background.