Deck 19: Xml and Linq to Xml

Question 1

XML stands for Extensible Markup Language

Answer 1

True

Question 2

Unlike with Visual Basic programs,blank lines and indentation cannot be used to improve readability in XML.

Answer 2

False

Question 3

The XML recommendation was developed by __________.

A)Microsoft
B)Sun MicroSystems
C)World Wide Web Consortium
D)Oracle

Answer 3

C

Question 4

XML documents __________.

A)are highly portable
B)are not portable
C)are portable depending on how the document is written
D)are a burden to use

Question 5

A validating parser only determines if the document is well formed.

Question 6

XML enables the description of only data stored in databases.

Question 7

Every XML document must contain exactly one root element.

Question 8

XML documents are readable only by computers and require translation in order to be human readable.

Question 9

Using XML,authors can describe any type of data,including

A)music
B)mathematical formulas
C)software-configuration instructions
D)All of the above

Question 10

All XML files have to end in the .xml extension

Question 11

Choose the correct XML syntax:

A)hello
B)hello
C)hello
D)hello

Question 12

XML is a proprietary technology.

Question 13

Which of the following about the XML prolog is true?

A)The XML prolog consists of the lines that precede the root element.
B)The XML declaration must appear before comments and any other markup.
C)The XML prolog is limited to a certain number of lines.
D)a and b.

Question 14

The XML declaration is mandatory.

Question 15

XML comments begin with:

A)B)

Question 16

Which of the following cannot be part of an element's name?

A)quotation marks
B)hyphens
C)underscores
D)periods

Question 17

XML is most commonly used to:

A)communicate with wireless devices
B)store and format data for exchange between apps
C)display information on the Internet
D)validate HTML files.

Question 18

An XML document can optionally reference a DTD or schema that defines the proper structure of the document.

Question 19

XML is case sensitive.

Question 20

The proper way to make start and end tags is:

A)
B) <\name>
C)<\name>
D)

Question 21

The EMPTY keyword specifies that the element does not contain any data between its start and end tag.

Question 22

XML _____________ provide a means of uniquely identifying XML elements.

A)attributes
B)tags
C)namespaces
D)None of the above

Question 23

In the code: <deitel:name>,name is the namespace and deitel is the element name.

Question 24

When using a namespace the prefix must always be included.

Question 25

Keyword ________ indicates that an element contains parseable character data.

A)PARSEDATA
B)CHARDATA
C)CDATA
D)PCDATA

Question 26

If the URI given to a namespace is a URL,the URL needs to refer to an actual web page and must conform to proper URL syntax.

Question 27

DTDs are used to ________.

A)describe the structure of an XML document
B)enable an XML parser to verify whether an XML document is valid
C)verify whether an XML document's elements contain the proper attributes and appear in the proper sequence
D)All of the above.

Question 28

XML-based languages are called vocabularies.

Question 29

An XML element can have only one attribute in its start tag.

Question 30

To eliminate the need to precede each element with a namespace prefix,document authors can specify a xe "default namespace"default namespace.

Question 31

XML elements are nested to form hierarchies.

Question 32

Individual units of markup are called tags.

Question 33

The asterisk (*)after an element in a DTD means that:

A)there are many occurrences of that item.
B)there could be any number of occurrences of that item.
C)that item could appear but at most once.
D)All of the above

Question 34

The question mark (?)after an element in a DTD means that:

A)there are many occurrences of that item.
B)there could be any number of occurrences of that item.
C)that item can appear at most once.
D)All of the above

Question 35

DTDs and schemas are used to specify the structure of XML documents.

Question 36

XML does not allow for empty elements.

Question 37

In order to ensure a unique XML namespace you should use:

A)your Social Security Number
B)your address
C)an appropriate web URL
D)your last name

Question 38

DTD is an acronym for ________.

A)Document Type Dictionary
B)Data Translator Definition
C)Document Type Definition
D)Document Translator Definition

Question 39

To define attributes in a DTD,the ATTRIBUTE keyword is used.

Question 40

Document authors can create a namespace prefix named xml.

Question 41

Parsed character data can contain markup.

Question 42

Extensible Stylesheet Language (XSL)is an XML vocabulary made specifically for formatting XHTML data

Question 43

After a transformation,the source tree is altered.

Question 44

Which of the following is not a technology of XSL?

A)XSL-FO: vocabulary for specifying formatting
B)XPath: string-based language of expressions used by XML
C)XSLT: transforms XML documents into other documents
D)XLib: library to help develop new stylesheets

Question 45

XSL documents specify how programs are to render XML document data

Question 46

A xe "processing instruction"processing instruction (PI)contains app-specific information that is embedded into the XML document.

Question 47

Complex types with simple content must extend or restrict some other existing types.Complex types with complex content do not have this limitation.

Question 48

XML documents can reference optional documents that define how the XML documents should be structured.

Question 49

Limitations of schemas have led to the development of DTD's.

Question 50

XSL style sheets cannot be connected directly to an XML document.

Question 51

Flag xe "#PCDATA flag"#PCDATA specifies that an element can store xe "parsed character data"parsed character data.

Question 52

Schemas normally use the ______ extension.

A))shm
B))sch
C))xsd
D))schema

Question 53

The transformation process,where formatted text-based documents are created from XML documents,involves ________.

A)0 trees
B)1 tree;the source.
C)2 trees;the source and the result tree.
D)3 trees;the source,the result,and the temp tree.

Question 54

A DOM tree is a data structure that ________.

A)Does Operations Manually.
B)holds 1 XML document per node,creating a multi-page site.
C)breaks XML documents down into chunks.
D)holds all the elements of an XML document within its nodes.

Question 55

Classes for creating,reading and manipulating XML documents are located in namespace ________.

A)System.Xml
B)System.Xml.Linq
C)Microsoft.Xml
D)a and b

Question 56

XDocument objects contain other nested XDocuments.

Question 57

Schemas are XML documents that conform to a DTD.

Question 58

The hierarchical tree structure stored in memory by the XML parser is called the ________.

A)Document Type Definition (DTD)
B)Simple Object Access Protocol (SOAP)
C)Active Server Page (ASP)
D)Document Object Model (DOM)

Question 59

The schema specifies the type of data that elements and attributes may contain.

Question 60

A DTD describes the contents of an XML document's elements.

Question 61

Axis properties are similar to ________.

A)XElement objects
B)XPaths
C)XML documents
D)TreeNode structures

Question 62

XslCompiledTransform's ________ method applies the style sheet to a specified XML document.

A)Compile
B)Load
C)Transform
D)None of the above.

Question 63

The collection returned by an axis property must be converted to an IEnumerable collection before being used by a LINQ query.

Question 64

The attribute axis is used to add,modify and return attribute values.

Question 65

There is an XSLT processor included in Internet Explorer to help perform transformations.

Question 66

An XML literal such as can be used in place of an XElement object.

Question 67

The descendant axis differs from the child axis in that the descendant axis returns matches from all descendants,and the child axis returns matches from direct children only.

Question 68

Embedded expressions allow ________ to be inserted in XML literals.

A)Visual Basic code expressions
B)other XML literals
C)hyperlinks
D)attached elements

Question 69

An XElement's contained text is retrieved with the Value property.

Question 70

XslCompiledTransform's Load method parses and loads a style sheet.

Question 71

The child axis returns XElements from the set of nodes which are _______ the current node.

A)lower in the hierarchy than
B)direct children of
C)Both (a)and (b).
D)None of the above.

Question 72

Which namespace contains the XslCompiledTransform?

A)System.Xml.Xsl
B)System.Xsl
C)System.Xml.Transform
D)System.XmlTransform