Quiz - Document Type Definitions - XML

A DTDs is an XML document.

True
False

DTDs contain desclarations for elements and entities.

True
False

DTDs are used to validate XML document.

True
False

Each XML document can be represented as a tree structure.

True
False

Ability to create one’s own tag is XML’s greatest disadvantage.

True
False

DTDs are made up of three blocks of declarations and the DOCTYPE declaration.

True
False

Elements, attributes and entities can be declared in any order.

True
False

DOCTYPE declarations are specified in the prolog of the XML document.

True
False

Internal DTDs specify the DTD within square brackets in the declaration itself.

True
False

External DTDs use the keyword URL to specify the location of the DTD.

True
False

Arrange the steps of creating DTDs.

(A) Declare all the possible elements.

(B) Specify the permissible element children, if any

(D) Declare all the possible element attribute.

(E) Set the attribute data types and values.

(F) Declare all the possible entities.

Which of the following XML code Snippets is valid?

(A) <!DOCTYPE mobile [

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP System “hp.txt“>

<!ENTITY CH System “ch.txt”>

<!ENTITY SK System “sk.txt”>

<Company>Nokia</Company>

</Mobile>

hp.txt

Head Phones

ch.txt

Charger

sk.txt

Starter’s Kit

(B)<!DOCTYPE mobile [

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Price (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP System “hp.txt”>

<!ENTITY SK System “sk.txt”>

<Company>Nokia</Company>

</Mobile>

hp.txt

Head Phones

ch.txt

Charger

sk.txt

Starter’s Kit

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Price (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP System “hp.txt“>

<!ENTITY CH System “ch.txt”>

<!ENTITY SK System “sk.txt”>

<Company>Nokia</Company>

</Mobile>

hp.txt

Head Phones

ch.txt

Charger

sk.txt

Starter’s Kit

(D) <!DOCTYPE mobile [

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Price (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP System “hp.txt“>

<!ENTITY CH System “ch.txt”>

<!ENTITY SK System “sk.txt”>

<Company>Nokia</Company>

<Price>9999

</Mobile>

hp.txt

Head Phones

ch.txt

Charger

sk.txt

Starter’s Kit

Element can contain character data but to be parsed, incase it contain entity references

<!ELEMENT element-name (type|child-name|…)>
<!ELEMENT element-name (child-name+)>
<!ELEMENT element-name (child-name,(child-name|child-name|…)>
<!ELEMENT element-name (#PCDATA)>
<!ELEMENT element-name (child-elemnt-name)>

Element with a number of children appearing only once in the XML document.

<!ELEMENT element-name (type|child-name|…)>
<!ELEMENT element-name (child-name+)>
<!ELEMENT element-name (child-name,(child-name|child-name|…)>
<!ELEMENT element-name (#PCDATA)>
<!ELEMENT element-name (child-elemnt-name)>

Element can accept either data type or children, etc.

<!ELEMENT element-name (type|child-name|…)>
<!ELEMENT element-name (child-name+)>
<!ELEMENT element-name (child-name,(child-name|child-name|…)>
<!ELEMENT element-name (#PCDATA)>
<!ELEMENT element-name (child-elemnt-name)>

Element’s children appear at least once in the XML document.

<!ELEMENT element-name (type|child-name|…)>
<!ELEMENT element-name (child-name+)>
<!ELEMENT element-name (child-name,(child-name|child-name|…)>
<!ELEMENT element-name (#PCDATA)>
<!ELEMENT element-name (child-elemnt-name)>

Element can have either one of two or more children.

<!ELEMENT element-name (type|child-name|…)>
<!ELEMENT element-name (child-name+)>
<!ELEMENT element-name (child-name,(child-name|child-name|…)>
<!ELEMENT element-name (#PCDATA)>
<!ELEMENT element-name (child-elemnt-name)>

Name of a notation.

NMTOKEN
NOTATION
(en1|en2|…)
xml:
IDREF

Predefined xml value.

NMTOKEN
NOTATION
(en1|en2|…)
xml:
IDREF

id of another element.

NMTOKEN
NOTATION
(en1|en2|…)
xml:
IDREF

valid xml name.

NMTOKEN
NOTATION
(en1|en2|…)
xml:
IDREF

enumerated list.

NMTOKEN
NOTATION
(en1|en2|…)
xml:
IDREF

Which of the following XML code is correct?

(A) <!DOCTYPE mobile [

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Price (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP “Head Phones”>

<!ENTITY SK “Starter’s Kit ”>

<Company>Nokia</Company>

</Mobile>

(B) <!DOCTYPE mobile [

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Price (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP “Head Phones”>

<!ENTITY CH “charger”>

<!ENTITY SK “Starter’s Kit”>

<Company>Nokia</Company>

</Mobile>

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Price (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP “hp.txt”>

<!ENTITY CH “ch.txt”>

<!ENTITY SK “sk.txt”>

<Company>Nokia</Company>

</Mobile>

(D) <!DOCTYPE mobile [

<!ELEMENT Mobile (Company, Model, Price, Accessories)>

<!ELEMENT Company (#PCDATA)>

<!ELEMENT Model (#PCDATA)>

<!ELEMENT Price (#PCDATA)>

<!ELEMENT Accessories (#PCDATA)>

<!ENTITY HP “Head Phones”>

<!ENTITY CH “Charger”>

<!ENTITY SK “Starter’s Kit”>

<Company>Nokia</Company>

</Mobile>

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Quiz - Document Type Definitions - XML

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Quiz - Document Type Definitions - XML

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