The DTD makes specific declarations about which elements and attributes may exist in a document and how they should be nested using a brief formal syntax.
A XML language can be defined in a variety of ways. Simple prose, a so-called Schema language, or eventually a combination of the two could be used to specify an XML vocabulary. The XML Standard defines DTDs, the most basic schema language.
The term "Document Type Definition" is used. A DTD is a language made up of rules (also known as a schema) that describes an XML application, also known as an XML vocabulary. For instance, the grammar for the XHTML 1 web markup language is formally defined in the file xhtml1-transitional.dtd, which is accessible through the XHTML 1.0 specification page.
The DTD itself is typically the most crucial component of a DTD-based markup language, but additional constraints can be included as well.
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UTF-8- is a variable width character encoding capable of encoding all 1,112,064 valid code points in Unicode using one to four 8-bit bytes. The encoding is defined by the Unicode standard. The sac character encoding method was addressed to simplify the symbolism of letter and symbols.As the computers grew in capacity UTF-8 method was implemented to optimize such protocol allowing more characters to be included with an expanded string of possibilities
The question above has multiple choices as follows.
<span>a.
</span>You can actually track any custom event you want
to define.
<span>b.
</span> All app
installs and all in-app purchases
<span>c.
</span>Android app downloads and Android in-app
purchases
<span>d.
</span>App installs and core user demographics
The correct answer is (C) Android app downloads and Android
in-app purchases
You can automatically track android in-app purchases from
Google play when someone who clicked your ad makes a purchase. There is no need
of adding code to your app. The same concept works on Android app downloads.
