<Tr> <Th> Query delimiter </Th> <Th> Example </Th> </Tr> <Tr> <Td> Ampersand (&) </Td> <Td> key1 = value1&key2 = value2 </Td> </Tr> <Tr> <Td> Semicolon (;) </Td> <Td> key1 = value1; key2 = value2 </Td> </Tr> <Ul> <Li> An optional query component preceded by a question mark (?), containing a query string of non-hierarchical data . Its syntax is not well defined, but by convention is most often a sequence of attribute--value pairs separated by a delimiter . </Li> <Li> An optional fragment component preceded by an hash (#). The fragment contains a fragment identifier providing direction to a secondary resource, such as a section heading in an article identified by the remainder of the URI . When the primary resource is an HTML document, the fragment is often an id attribute of a specific element, and web browsers will scroll this element into view . </Li> </Ul>

Each web page is assigned an internet address called a uniform resource locator (url)