2.3 Xml0100 writing xml review  (Page 2/4)

Answer 18

Question 19

True or False: XML is a language.

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Question 20

True or False: Every custom markup language created using the XML specification must adhere to XML's underlying grammar.

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Question 21

True or False: XML documents are saved with a .rss extension.

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Question 22

True or False: An XML document simply stores and describes data.

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Question 23

True or False: Good practice suggests that the names of the tags in an XML document should describe the data they contain.

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Question 24

True or False: The first line of an XML document, (known as the XML declaration) , should be as shown in Listing 1 below (although the version number may be different at some point in the future):

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Question 25

True or False: Just like HTML documents, XML documents may have multiple root elements.

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Question 26

True or False: A root element can have one or more child elements that describe the root element in more detail.

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Question 27

True or False: In Listing 2 below, units is called a parameter

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Question 28

True or False: The terminology "well-formed" is commonly used in conjunction with an XML document.

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Question 29

True or False: All of the following must be true in order for an XML document to be well-formed:

• A root element is required.
• Closing tags are required.
• Elements must be properly nested.
• Values must be enclosed in quotation marks.
• The document must be valid.

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Question 30

True or False: An XML attribute is the most basic unit of an XML document.

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Question 31

True or False: An XML element can contain text, attributes, and other elements.

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Question 32

True or False: Attributes are contained within an element's opening tag and have values that are delimited by quotation marks.

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Question 33

True or False: Tags that begin with the characters in the first line of Listing 3 and end with the characters in the second line of Listing 3 are called processinginstructions.

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Question 34

True or False: Processing instructions must be enclosed by the opening and closing tags of the root element.

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Question 35

True or False: XML is not sensitive to upper and lower case.

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Question 36

True or False: Element and attribute names must begin with a letter, a number, an underscore, or a colon.

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Question 37

True or False: Closing tags are not optional in XML.

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Question 38

True or False: Element names may begin with upper-case XML.

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Question 39

True or False: The root element can have child elements, and child elements can have other child elements provided that they are properly nested.

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Question 40

True or False: An attribute stores additional information about an element without adding text to the element's content.

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Question 41

True or False: Attribute values must be in double quotes.

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Question 42

True or False: Empty elements are elements that don't have any content of their own.