1.
XML is more advantageous to use than a fixed-length database system because:
Correct Answer
D. All of the above.
Explanation
The correct answer is "All of the above". XML is advantageous to use over a fixed-length database system because of multiple reasons. Firstly, the faster computers of today can handle XML efficiently. Secondly, it saves money by reducing IT expenses as XML does not require a dedicated database management system. Lastly, XML is designed to be easily understandable, even for those without an IT background, making it accessible to a wider range of users. Therefore, all of these reasons make XML more advantageous than a fixed-length database system.
2.
SAX is
Correct Answer
D. An XML parser
Explanation
SAX is an XML parser. SAX stands for Simple API for XML and it is a widely used event-driven interface for parsing XML documents. It allows developers to read and process XML data sequentially, without loading the entire document into memory. SAX parsers are efficient and memory-friendly, making them suitable for handling large XML files. They work by detecting XML elements, attributes, and content through events, triggering callbacks to handle the data as it is being parsed. Therefore, the correct answer is "An XML parser".
3.
PCDATA is
Correct Answer
B. An XML element that contains parsed character data
Explanation
PCDATA stands for Parsed Character Data in XML. It is a type of XML element that contains text or character data that has been parsed and is not used for defining data specific to a PC or containing other XML elements. PCDATA elements are used to represent the actual content within an XML document, such as text, numbers, or symbols. They are different from other XML elements that define the structure or hierarchy of the document. Therefore, the correct answer is "An XML element that contains parsed character data."
4.
You must use a parser to read an XML document.
Correct Answer
B. False
Explanation
An XML document can be read without necessarily using a parser. There are other methods and tools available for reading XML documents, such as using DOM (Document Object Model) or SAX (Simple API for XML) APIs. These APIs allow developers to access and manipulate XML data without explicitly using a parser. Therefore, the statement "You must use a parser to read an XML document" is false.
5.
XML stores data in fixed lengths.
Correct Answer
B. False
Explanation
XML does not store data in fixed lengths. In fact, XML is a markup language that uses tags to define elements and structure data, allowing for flexibility in terms of the length and content of the data being stored. XML allows for the representation of hierarchical relationships and can store data of varying lengths and types within its elements. Therefore, the given statement is false.
6.
XML is a subset of:
Correct Answer
A. SGML
Explanation
XML is a subset of SGML (Standard Generalized Markup Language). SGML is a markup language that defines the rules for creating document types, allowing the definition of customized markup languages. XML was developed as a simplified version of SGML, with stricter rules and a smaller set of features. XML retains the hierarchical structure and markup capabilities of SGML, making it a subset of SGML. HTML (Hypertext Markup Language) is a separate markup language used for creating web pages and is not a subset of SGML. MGL is not a recognized markup language, so it is not a subset of SGML either.
7.
XML is used for web services.
Correct Answer
A. True
Explanation
XML (Extensible Markup Language) is commonly used for web services. It is a popular format for structuring and exchanging data over the internet. XML allows for the representation of complex data structures and is platform-independent, making it suitable for communication between different systems. It is widely used in web services to facilitate data exchange and interoperability between applications and services. Therefore, the statement "XML is used for web services" is true.
8.
An XML element can contain other XML elements.
Correct Answer
A. True
Explanation
An XML element can contain other XML elements because XML follows a hierarchical structure where elements can be nested within each other. This allows for the organization and structuring of data in a tree-like format. Each element can have child elements, making it possible to create complex and nested structures within an XML document. Therefore, the statement "An XML element can contain other XML elements" is true.
9.
A parent element cannot contain another parent element.
Correct Answer
B. False
Explanation
This statement is false. A parent element can indeed contain another parent element. In HTML, for example, it is common to have nested div elements, where one div element acts as the parent and contains another div element as its child. This allows for hierarchical structuring of elements on a webpage.
10.
An attribute contains a
Correct Answer
A. Name/value pair
Explanation
In XML, an attribute is a characteristic of an element that provides additional information about the element. It consists of a name/value pair, where the name represents the attribute's identifier and the value represents the data associated with that attribute. This allows for the organization and structure of data within an XML document. Therefore, the correct answer is "Name/value pair".
11.
The asterisk at the end of an element name in a DTD means its:
Correct Answer
C. The DTD contains zero to many of this element
Explanation
The asterisk at the end of an element name in a DTD means that the DTD contains zero to many of this element. This indicates that the element is optional and can occur multiple times or not at all in the XML document that adheres to the DTD.
12.
The DOCTYPE is used to:
Correct Answer
C. Identify the DTD for an XML document
Explanation
The DOCTYPE is used to identify the DTD (Document Type Definition) for an XML document. The DTD defines the structure, elements, and attributes that are allowed in the XML document. By specifying the DOCTYPE, the XML parser knows which set of rules to follow when parsing and validating the XML document. This helps ensure that the XML document is well-formed and conforms to the specified DTD.
13.
All XML markup tags must have an attribute.
Correct Answer
B. False
Explanation
XML markup tags do not necessarily have to have an attribute. In XML, tags can be used to define the structure and content of the data, and attributes are optional additional information that can be associated with the tags. So, it is not mandatory for all XML markup tags to have an attribute.
14.
Special symbols can be inserted into an XML document using:
Correct Answer
B. A UNICODE value
Explanation
Special symbols can be inserted into an XML document using a UNICODE value. UNICODE is a universal character encoding standard that assigns a unique number to every character in almost every writing system. By using a UNICODE value, special symbols that are not directly supported by XML can be represented and inserted into the document. This allows for the inclusion of a wide range of characters from different languages and symbol sets in XML documents.
15.
An XML document must contain all elements declared in the DTD.
Correct Answer
B. False
Explanation
An XML document does not have to contain all elements declared in the DTD. The DTD (Document Type Definition) defines the structure and rules for the XML document, but it does not enforce that all elements must be present in the XML document. XML documents can be valid even if they do not include all elements declared in the DTD. Therefore, the correct answer is False.
16.
#PCDATA refers to
Correct Answer
C. Parsed character data
Explanation
#PCDATA refers to Parsed Character Data. Parsed character data is the content within an XML element that is parsed and processed by an XML parser. It represents character data that is not marked up with any XML tags or attributes. This data is treated as text and is not interpreted as markup or code. Therefore, the correct answer is "Parsed character data."
17.
An image tag is an example of an EMPTY element.
Correct Answer
A. True
Explanation
An image tag is considered an example of an EMPTY element because it does not require a closing tag. The tag is used to display an image on a webpage, and it does not contain any content or text within it. It only requires attributes to specify the source and other properties of the image. Therefore, it is classified as an EMPTY element.
18.
All XML markup tags must have an attribute.
Correct Answer
B. False
Explanation
XML markup tags do not necessarily have to have an attribute. An XML tag can exist without any attributes and still be valid. Attributes provide additional information about the tag, but they are not mandatory for the tag to be considered valid XML. Therefore, the statement "All XML markup tags must have an attribute" is false.
19.
An element name can begin with
Correct Answer
D. All of the above
Explanation
All of the options listed (a colon, an underscore, and letters) can be used as the first character in an element name. In XML and HTML, a colon is used to indicate a namespace prefix. An underscore is a valid character in an element name. And letters are commonly used as the first character in element names. Therefore, all of the options are correct.
20.
You cannot set valid options when declaring an attribute.
Correct Answer
B. False
Explanation
When declaring an attribute, it is possible to set valid options. This allows the attribute to only accept certain values that meet specific criteria. By setting valid options, you can ensure that the attribute only receives input within the specified range or criteria, making it easier to validate and control the data being assigned to the attribute. Therefore, the statement "You cannot set valid options when declaring an attribute" is false.
21.
An XML schema is used to define a complex type.
An XML schema is used to define a complex type.
Correct Answer
A. True
Explanation
An XML schema is a way to define the structure, content, and data types of XML documents. It allows for the creation of complex types, which are used to define elements that can contain other elements or attributes. By defining a complex type, the XML schema provides a way to specify the hierarchical structure and relationships within an XML document, making it easier to validate and process the data. Therefore, the statement that an XML schema is used to define a complex type is true.
22.
Type=fiintegerfl means
Correct Answer
C. Only integers can be used in the corresponding element.
Explanation
The correct answer is "Only integers can be used in the corresponding element." This means that when the type is specified as "fiintegerfl", it indicates that only integers can be used in the corresponding element. This implies that any other type, such as strings, floats, or booleans, cannot be used in that element.
23.
Xmlns:xs=fihttp://www.w3.org/2001/XMLSchemafl is used to:
Correct Answer
C. Identify the XML schema specifications used in the XML schema
Explanation
The XML namespace declaration xmlns:xs="http://www.w3.org/2001/XMLSchema" is used to identify the XML schema specifications used in the XML schema. It specifies that the XML schema is using the XML Schema Definition (XSD) language for defining the structure and constraints of the XML document. By declaring this namespace, it allows the schema to reference and use the elements, types, and attributes defined in the XML Schema specification.
24.
The xs:sequence tag
Correct Answer
A. Specifies the sequence in which elements must appear in an XML document
Explanation
The xs:sequence tag is used in an XML schema to specify the sequence in which elements must appear in an XML document. It defines the order in which elements should be arranged within the XML document, ensuring that they appear in a specific sequence as defined by the schema. This helps in maintaining the structure and integrity of the XML data.
25.
Xsi:schemaLocation=ficustomers.xsdfl is used to
Correct Answer
D. Identify the location of the XML schema
Explanation
The xsi:schemaLocation attribute in an XML document is used to specify the location of the XML schema that defines the structure and constraints of the document. It provides a reference to the location of the schema file, allowing the XML parser to validate the document against the specified schema. This attribute is used to ensure that the XML document adheres to the defined rules and structure specified in the schema.
26.
You can require a specific value for an attribute by setting the value for fixed.
Correct Answer
A. True
Explanation
By setting the value for "fixed" attribute, it is possible to require a specific value for an attribute. This means that the attribute must always have a particular value and cannot be left blank or changed. Therefore, the statement is true.
27.
A regular expression can be used to specify complex restrictions for the content of an element.
Correct Answer
A. True
Explanation
Regular expressions are a powerful tool for specifying patterns in strings. They can be used to define complex restrictions for the content of an element by matching specific patterns or sequences of characters. Regular expressions allow for precise control over what is considered valid or acceptable content, making them useful in various applications such as form validation or data extraction. Therefore, the statement that a regular expression can be used to specify complex restrictions for the content of an element is true.
28.
You can specify a series of valid values for an element by using which of the following in a regular expression?
Correct Answer
A. |
Explanation
In a regular expression, you can specify a series of valid values for an element by using the "|" symbol, also known as the "pipe" symbol. This symbol acts as an "OR" operator, allowing you to match any of the values separated by the pipe. For example, if you have the regular expression "cat|dog", it will match either "cat" or "dog".
29.
A facet is a valid value that can be assigned to an attribute.
Correct Answer
A. True
Explanation
A facet is a valid value that can be assigned to an attribute. This means that when defining an attribute, there are certain valid values or options that can be assigned to it, and these options are known as facets. Therefore, the statement that "A facet is a valid value that can be assigned to an attribute" is true.
30.
The xs:enumeration tag is used to define a valid value for an attribute.
Correct Answer
A. True
Explanation
The xs:enumeration tag is indeed used to define a valid value for an attribute. It is a part of the XML Schema language and is used to restrict the possible values that can be assigned to an attribute. By using the xs:enumeration tag, a specific list of allowed values can be defined, ensuring that only those values are considered valid for the attribute.
31.
XML can only be transformed into HTML or XHTML.
Correct Answer
B. False
Explanation
XML can be transformed into various formats, not just HTML or XHTML. XML is a flexible markup language that can be used to represent structured data, and it can be transformed into different output formats using technologies like XSLT (eXtensible Stylesheet Language Transformations). These transformations can convert XML into formats such as PDF, CSV, JSON, or even other XML formats. Therefore, the statement that XML can only be transformed into HTML or XHTML is incorrect.
32.
Instructions for transforming an XML document are contained in the:
Correct Answer
A. XSL stylesheet
Explanation
The correct answer is XSL stylesheet. XSL stands for Extensible Stylesheet Language, and it is used to transform XML documents into different formats such as HTML or PDF. XSL stylesheets contain instructions on how to transform the XML document, including specifying the structure, formatting, and presentation of the output. CSS (Cascading Style Sheets) is used for styling HTML documents, not XML. XSLT (XSL Transformations) is a language used for transforming XML documents, and XSL is a subset of XSLT. Therefore, the XSL stylesheet is the correct answer as it specifically refers to the stylesheet used for transforming XML documents.
33.
The <xsl:for-each select=ficustomers/customerfl> statement states:
Correct Answer
C. For each customer element of the source document thats a child of customers
Explanation
The given correct answer states that the statement is used to iterate over each customer element in the source document that is a child of customers. This means that the code will perform a specific action for each customer element that is nested inside the customers element in the source document.
34.
The <xsl:value-of> element is used to:
Correct Answer
B. Extract text from the source document
Explanation
The element is used to extract text from the source document. This element is commonly used in XSLT to select and output the value of a specified node or attribute from the XML source document. It allows the transformation to retrieve specific data from the source document and include it in the transformed output.
35.
The <xsl:value-of select=fi@id=Jimfi/> statement is used to:
Correct Answer
B. Select the id attribute
Explanation
The given XSL statement "selects the id attribute" from the XML document. It does not select the Jim element or the Jim attribute specifically, but rather selects the attribute with the name "id".
36.
The <xsl:for-each> element contains only XSL elements.
Correct Answer
B. False
Explanation
The element does not contain only XSL elements. It is a looping construct in XSLT that allows you to iterate over a selected set of nodes and perform actions on each node. Inside the element, you can include any valid XSLT instructions, such as , , , etc. Therefore, the statement is false.
37.
The <xsl:if> element instructs the CSS to evaluate a condition before extracting an element.
Correct Answer
B. False
Explanation
The element is not related to CSS, but rather it is used in XSLT (Extensible Stylesheet Language Transformations) to conditionally process elements in an XML document. It allows you to specify a condition that must be true for the element to be processed. Therefore, the statement that the element instructs the CSS to evaluate a condition before extracting an element is incorrect.
38.
You can repeat lines of code within the XSL stylesheet by defining an apply-template.
Correct Answer
B. False
Explanation
The statement is false because the apply-template function in XSLT is used to process nodes in the XML document, not to repeat lines of code within the stylesheet. It allows the XSLT processor to match and apply templates to specific nodes in the XML document based on their match patterns.
39.
Only a browser can access a result document.
Correct Answer
B. False
Explanation
This statement is false because a browser is not the only way to access a result document. Other applications or software can also be used to access a result document, such as text editors or document viewers. Therefore, the statement is not accurate.
40.
The SAX parser is able to transverse an XML document.
Correct Answer
B. False
Explanation
The statement is false because the SAX parser is not able to traverse an XML document. Unlike the DOM parser, which builds a tree structure of the entire XML document in memory, the SAX parser works in a streaming manner and does not store the entire document. Instead, it reads the XML document sequentially and triggers events for specific elements or attributes. This makes it more memory-efficient but also means that it does not traverse the document in the same way as the DOM parser.
41.
The SAX parser creates a node by using:
Correct Answer
D. None of the above
Explanation
The SAX parser does not create nodes using any of the mentioned methods. Instead, it reads an XML document sequentially and triggers events for each element, attribute, and text encountered. It does not create or manipulate nodes directly, but rather provides a mechanism for developers to handle these events and perform desired actions accordingly.
42.
The SAX parser reacts to a new element by using:
Correct Answer
C. StartElement()
Explanation
The SAX parser reacts to a new element by using the startElement() method. This method is called when the parser encounters the start of an XML element. It provides information about the element's name, attributes, and namespace. This allows the parser to process the element and its contents accordingly. The startElement() method is an essential part of the SAX parsing process as it enables the parser to handle each element in the XML document.
43.
Which of the following is represented as a node in the tree a DOM parser creates?
Correct Answer
D. All of the above
Explanation
A DOM parser creates a tree-like structure called the Document Object Model (DOM) to represent an HTML or XML document. In this tree, each element, including CDATA sections, comments, and regular elements, is represented as a node. Therefore, the correct answer is "All of the above."
44.
A Java transformer can use:
Correct Answer
D. All of the above
Explanation
A Java transformer can use its own stylesheet, DTD, and XSLT. This means that it has the capability to apply transformations to XML documents using different stylesheets, validate the structure and content of XML documents using DTD, and perform complex transformations using XSLT. By having access to all of these options, the Java transformer provides flexibility and versatility in manipulating XML data.
45.
The same version of a DOM parser must be used on all computers.
Correct Answer
B. False
Explanation
Different versions of a DOM parser can be used on different computers as long as they are compatible with the particular version of the DOM specification being used. There is no requirement for all computers to use the exact same version of the DOM parser. Therefore, the statement is false.
46.
A Stream is a series of characters that can be the results of transformation performed by a Java transformer.
Correct Answer
A. True
Explanation
The statement is true because a Stream in Java is indeed a series of characters that can be the result of a transformation performed by a Java transformer. Streams are used to process collections of data in a functional programming style, allowing for operations such as filtering, mapping, and reducing. These operations can be performed on the elements of the Stream to transform and manipulate the data. Therefore, the given statement accurately describes the nature and purpose of Streams in Java.
47.
A SAX parser
Correct Answer
A. Reads a block of an XML document at a time
Explanation
A SAX parser reads a block of an XML document at a time, rather than loading the entire document into memory. It sequentially processes the XML elements and triggers events as it encounters them, allowing for efficient parsing of large XML files. This approach is beneficial in scenarios where memory usage is a concern or when processing large XML files in a streaming manner is required.
48.
You should use a SAX parser if a DOM parser is unable to load the XML document into memory.
Correct Answer
A. True
Explanation
A SAX (Simple API for XML) parser is a better choice when dealing with large XML documents because it processes the document sequentially and does not load the entire document into memory. This makes it more efficient in terms of memory usage and processing speed. In contrast, a DOM (Document Object Model) parser loads the entire XML document into memory, which can be a problem if the document is too large. Therefore, if a DOM parser is unable to load the XML document into memory due to its size, it is recommended to use a SAX parser instead.
49.
Saxon-B is the only software that can process an XQuery.
Correct Answer
B. False
Explanation
The given statement is false. There are multiple software programs available that can process an XQuery, not just Saxon-B. Therefore, the statement is incorrect.
50.
What kind of clause is used to specify the filter criteria?
Correct Answer
C. Where clause
Explanation
The correct answer is "where clause". In SQL, the where clause is used to specify the filter criteria for a query. It allows you to retrieve specific rows from a table based on certain conditions. The where clause is an essential component of SQL statements as it helps in narrowing down the results and retrieving only the desired data. It is used to filter data based on one or more conditions, making the query more specific and targeted.