Question

explain that xml tag are case sensitive
Tell this in easy language

Answer 1

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All of an XML document is case-sensitive. This is significantly different from HTML and most other SGML applications, where the default was to ignore case. It was done to allow markup in non-Latin-alphabet languages, and to obviate problems with case-folding in writing systems which are inherently caseless.
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Answer 2

Short note on XML tag:

(i) It is an acronym for eXtensible MarkUp Language.

(ii) XML tags are user defined tags i.e tags are created by the author.

(iii) XML mainly focuses on on what data is. It is designed to store and transport data.

(iv) Documents can be structured logically in XML.

XML case-sensitive:

(i) XML does have a strictly defined syntax.

(ii) It must have a start-tag and an end-tag i.e All XML elements must have a closing tag.

(iii) Tags must be properly nested and also its attributes values must be Quoted.

Example:

(i) <name>brainly</Name>   ---- Invalid

<name>brainly</name>  ---- valid

(ii) <name><site>brainly</name></site>   ---- Invalid

<name><site>brainly</site></name   ----- valid

(iii)

<site>

<rank>

Brainly is the best educational app

</site>

</rank>

Hope it helps!