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What are the advantages and disadvantages of XML over HTML?

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What are the advantages and disadvantages of XML over HTML?

Advantages of XML

  • XML uses human, not computer, language. XML is readable and understandable, even by novices, and no more difficult to code than HTML.
  • XML is completely compatible with Java™ and 100% portable. Any application that can process XML can use your information, regardless of platform.
  • XML is extendable.

What is the benefit of using XML namespace?

Namespaces allow you to uniquely identify and utilize an XML vocabulary. With namespaces, you can: Combine fragments from different documents without any naming conflicts. Write reusable code modules that can be invoked for specific elements and attributes.

What is the use of namespaces in XML?

An XML namespace is a collection of names that can be used as element or attribute names in an XML document. The namespace qualifies element names uniquely on the Web in order to avoid conflicts between elements with the same name.

Which of these are advantages of XML?

The main features or advantages of XML are given below.

  • 1) XML separates data from HTML.
  • 2) XML simplifies data sharing.
  • 3) XML simplifies data transport.
  • 5) XML increases data availability.
  • 6) XML can be used to create new internet languages.

What are the disadvantage of XML?

Disadvantages of XML

  • XML syntax is redundant or large relative to binary representations of similar data, especially with tabular data.
  • The redundancy may affect application efficiency through higher storage, transmission and processing costs.

What are the limitations of XML?

Limitations

  • XML is not optimized for access speed. XML documents are meant to be completely loaded, and then used as a data source.
  • XML is not compact. There is no official scheme for compressing XML.
  • Many kinds of data are not suited for embedded markup. XML is most useful for text data with a hierarchical structure.

What is the purpose of namespaces in XML explain with example?

XML namespaces are used for providing uniquely named elements and attributes in an XML document. They are defined in a W3C recommendation. An XML instance may contain element or attribute names from more than one XML vocabulary.

What is an advantage of XML compared to HTML?

XML syntax closely resembles HTML; data is enclosed between opening and closing tags. However, XML is more flexible than HTML: XML encodes data in tightly-validated tree structures. Data is easy to locate since its context is well defined by tags and rules of structure.

What is the primary purpose of a namespace?

In computer programming, namespaces are typically employed for the purpose of grouping symbols and identifiers around a particular functionality and to avoid name collisions between multiple identifiers that share the same name.

What are namespaces Why is it useful explain with an example?

A namespace is a declarative region that provides a scope to the identifiers (the names of types, functions, variables, etc) inside it. Namespaces are used to organize code into logical groups and to prevent name collisions that can occur especially when your code base includes multiple libraries.

What are the drawbacks of HTML How are they addressed in XML?

XML provides framework to define markup languages. HTML can ignore small errors. XML does not allow errors. HTML is not Case sensitive.

What are the disadvantages of HTML?

Disadvantages :

  • It cannot produce dynamic output alone, since it’s a static language.
  • Making the structure of HTML documents becomes tough to understand.
  • Errors can be costly.
  • It is the time consuming as the time it consume to maintain on the colour scheme of a page and to make lists, tables and forms.

What are the disadvantages of XML?

1. Readability index: XML documents are less readable when compared to other text-based data transmission formats. 2. Namespace issues: XML namespaces are difficult to use and cannot be correctly implemented in an XML parser. 3.

How do you define a namespace in XML?

XML Namespaces – The xmlns Attribute. When using prefixes in XML, a namespace for the prefix must be defined. The namespace can be defined by an xmlns attribute in the start tag of an element. The namespace declaration has the following syntax. xmlns:prefix=”URI”. . .

What is the advantage of using XML over JSON?

XML simplifies data sharing between various systems because of its platform independent nature. XML data doesn’t require any conversion when transferred between different systems. 1. XML syntax is verbose and redundant compared to other text-based data transmission formats such as JSON. 2.

How do you avoid name conflicts in XML?

Name conflicts in XML can easily be avoided using a name prefix. In the example above, there will be no conflict because the two elements have different names. When using prefixes in XML, a namespace for the prefix must be defined. The namespace can be defined by an xmlns attribute in the start tag of an element.