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Exam 2: Validating an Xml Document

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Question 1

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Case 2-1 Casey is using XML to store information about the students in the science classes that he teaches. He wants to design a DTD that he can use to validate the XML documents that he uses for this purpose, and he comes to you for help. -After you teach Casey about declarations for elements with child elements, he constructs the element declaration <!ELEMENT class ((seminar | lesson | workshop) , time?) > . Given this declaration, which of the following is NOT a valid "class" element?

A) <class><seminar>Beginner Drawing</seminar><time>Mon. 3-4</time></class>
B) <class><lesson>One-on-One Painting</lesson><time>Tues. 11-noon</time></class>
C) <class><seminar>Oil Painting</seminar><lesson>brushstrokes</lesson></class>
D) <class><workshop>Working with Clay</workshop></class>

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Question 2

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The declaration _____ would permit this element in an XML document: <name>Lea Ziegler</name> .

A) <!ELEMENT products (#CHAR) >
B) <!ELEMENT products ALL>
C) <!ELEMENT products EMPTY>
D) <!ELEMENT name (#PCDATA) >

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Question 3

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Most standard XML vocabularies have _____ identifiers.

The _____ symbol is used for inserting parameter entities.

A(n) _____  associates the value of an attribute with a <!NOTATION> declaration that is inserted elsewhere in the DTD.

XML parsers interpret the _____ symbol as a reference to another entity and attempt to resolve the reference.

Attributes that are limited to a set of possible values are known as _____  types.

Case 2-1 Casey is using XML to store information about the students in the science classes that he teaches. He wants to design a DTD that he can use to validate the XML documents that he uses for this purpose, and he comes to you for help. -Casey needs to declare an "address" element that can be used to store a student's address. If he intends to store the address as parsed character data, which of the following is an appropriate declaration for this element?

Case 2-1 Casey is using XML to store information about the students in the science classes that he teaches. He wants to design a DTD that he can use to validate the XML documents that he uses for this purpose, and he comes to you for help. -You tell Casey that he must declare the DTD using a DOCTYPE statement. Where should the DOCTYPE go?

What are the five possible values for content-model  in the element declaration?

The locations of external subsets like that shown in the accompanying figure can be defined using _____ types of identifiers.

An element _____ declaration specifies an element's name and indicates what kind of content the element can contain.

The _____ attribute default means that the attribute must appear with every occurrence of the element.

A(n) _____  is added to the DOCTYPE declaration to provide information about the DTD to the XML parser.

Element names can contain which of the following?

_____ is ignored within a comment, so you can spread comment text over several lines without affecting DTD code.

An entity whose content is found within the DTD is known as a(n) external entity.

If a processor encounters more than one declaration for the same attribute, it ignores the first statement.

A(n) _____  content model is a list of child elements that follow a defined order.

The content-model value can be one of _____ specific keywords or one of two content descriptions.