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Viktor answer for IBM 141 (question 20)

 
Adrian Ferreira
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Hello Ranchers,
from Viktor page. For me, the correct shoud be a) and not c). Could someone comment this question?
Thanks,
Adrian

20. Consider the following example:
<xsd:element name="Price">
<xsd:complexType>
<xsd:attribute name="currency" type="xsd:string"/>
</xsd:complexType>
</xsd:element>
The "currency" attribute declaration is equivalent to which of the following DTD declarations?
Single Select - Please select the best answer (one and only one choice must be selected).
a) <!ATTLIST Price currency CDATA #REQUIRED>
No, no use="required"
b) <!ATTLIST Price currency CDATA #FIXED>
No, must provide value if fixed
c) <!ATTLIST Price currency CDATA #IMPLIED>
Sounds logical for the Schema example
d) <!ATTLIST Price currency PCDATA #IMPLIED>
No need for parsed data
 
Razi Abbas
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When declaring attributes in XML Schema, if the "use" is not defined, then the attribute defaults to optional (Professional XML - page 210). So I think the correct answer is c.
 
Adrian Ferreira
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Razi,
That is correct, and I was confused. For Elements the default for maxOccurs and minOccurs is 1, but for attibutes is like you have pointed.
Thanks for your reply,
Adrian
 
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