Which of the following child elements are mandatory in the element of an RSS feed?

If a <guid> sub-element is included in an <item> element in your RSS
feed, which attribute must be set to "true" to consider guid as a url
that points to the full item described by the <item> element?

Which of the following attributes is mandatory for an <atom:link>
element in an RSS feed?

Which of the following hexadecimal references must be used by a
publisher when encoding the "<" character in an RSS feed?

Which of the following values must be assigned to the "rel" attribute
of an <atom:link> element to describe the original source of the entry
in an RSS feed?

What is the character count limit of the data that can be contained in
any element of an RSS feed?

The mechanism of fetching a webpage and pulling out relevant parts
for an RSS feed is known as______.

What is the meaning of the word 'Syndication' in RSS terminology?

What is the extension of an RSS feed when it is published on the web?