XQuery Quiz – XQuery Multiple Choice Questions and Answers

2023-03-06

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XQuery Quiz – XQuery Multiple Choice Questions and Answers: Do you want to excel in your knowledge of XQuery concepts? If so, you’ve come to the right platform. Many of you may face hurdles while appearing for placements or interviews, and to avoid confusion, we are here to provide all the frequently asked XQuery quiz questions and answers. Now go through the below sections to know about XQuery and then attempt the Top 55 XQuery MCQs to test your knowledge.

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XQuery Quiz

XQuery is a query language used for retrieving and manipulating data from various types of XML documents. It is designed to work with large, complex datasets and offers a range of features to simplify data extraction, transformation, and analysis. XQuery is widely used in database management, web development, and other applications that involve processing large amounts of XML data. The XQuery MCQ Quiz provided here has been gathered from experts. Go through the sections below and prepare for XQuery Multiple Choice Questions and Answers. Practice these XQuery quiz MCQs multiple times to improve your knowledge.

XQuery Quiz – XQuery Multiple Choice Questions and Answers

Quiz Name	XQuery
Exam Type	MCQ (Multiple Choice Questions)
Category	Technical Quiz
Mode of Quiz	Online

Top 55 XQuery Quiz MCQs

1. What does XQuery stand for?

a) XML Query
b) XQuery Query
c) XQuery Language
d) XML Language

Answer: a) XML Query

Explanation: XQuery stands for XML Query, and it is a programming language that is used for querying XML data.

2. Which of the following is true about XQuery?

a) It is a markup language
b) It is a query language
c) It is a programming language
d) It is a scripting language

Answer: b) It is a query language

Explanation: XQuery is a query language that is used to extract data from XML documents.

3. Which of the following is not a feature of XQuery?

a) Expressions
b) Functions
c) Variables
d) Objects

Answer: d) Objects

Explanation: XQuery does not have a feature for dealing with objects.

4. Which of the following is used to reference an element in XQuery?

a) @
b) $
c) /
d) //

Answer: c) /

Explanation: The forward slash (/) is used to reference an element in XQuery.

5. Which of the following is used to reference an attribute in XQuery?

a) @
b) $
c) /
d) //

Answer: a) @

Explanation: The at symbol (@) is used to reference an attribute in XQuery.

6. Which of the following is true about the for loop in XQuery?

a) It is used to iterate over a sequence of items
b) It is used to create new elements
c) It is used to delete elements
d) It is used to update elements

Answer: a) It is used to iterate over a sequence of items

Explanation: The for loop in XQuery is used to iterate over a sequence of items, such as elements or attributes.

7. Which of the following is true about the where clause in XQuery?

a) It is used to create new elements
b) It is used to filter data
c) It is used to update elements
d) It is used to delete elements

Answer: b) It is used to filter data

Explanation: The where clause in XQuery is used to filter data based on certain criteria.

8. Which of the following is used to concatenate strings in XQuery?

a) +
b) &
c) |
d) ~

Answer: b) &

Explanation: The ampersand (&) is used to concatenate strings in XQuery.

9. Which of the following is true about the distinct-values function in XQuery?

a) It returns the unique values in a sequence
b) It sorts a sequence in ascending order
c) It sorts a sequence in descending order
d) It returns the average value in a sequence

Answer: a) It returns the unique values in a sequence

Explanation: The distinct-values function in XQuery returns the unique values in a sequence.

10. Which of the following is used to group data in XQuery?

a) group-by
b) order-by
c) where
d) let

Answer: a) group-by

Explanation: The group-by clause in XQuery is used to group data based on certain criteria.

11. Which of the following is used to order data in XQuery?

a) group-by
b) order-by
c) where
d) let

Answer: b) order-by

Explanation: The order-by clause in XQuery is used to order data based on certain criteria.

12. Which of the following is true about the let clause in XQuery?

a) It is used to create new elements
b) It is used to filter data
c) It is used to create variables
d) It is used to delete elements

Answer: c) It is used to create variables

Explanation: The let clause in XQuery is used to create variables that can be used in the rest of the query.

13. Which of the following is true about the some and every functions in XQuery?

a) They return a sequence of boolean values
b) They return the first item in a sequence
c) They return the last item in a sequence
d) They return the number of items in a sequence

Answer: a) They return a sequence of boolean values

Explanation: The some and every functions in XQuery return a sequence of boolean values based on certain criteria.

14. Which of the following is used to check if a sequence is empty in XQuery?

a) empty()
b) exists()
c) count()
d) index-of()

Answer: a) empty()

Explanation: The empty() function in XQuery is used to check if a sequence is empty.

15. Which of the following is used to check if a value is null in XQuery?

a) is-null()
b) empty()
c) exists()
d) is-empty()

Answer: b) empty()

Explanation: The empty() function in XQuery can also be used to check if a value is null.

16. Which of the following is true about the insert nodes function in XQuery?

a) It is used to insert nodes into an XML document
b) It is used to delete nodes from an XML document
c) It is used to update nodes in an XML document
d) It is used to create new nodes in an XML document

Answer: a) It is used to insert nodes into an XML document

Explanation: The insert nodes function in XQuery is used to insert nodes into an XML document.

17. Which of the following is true about the delete nodes function in XQuery?

Answer: b) It is used to delete nodes from an XML document

Explanation: The delete nodes function in XQuery is used to delete nodes from an XML document.

18. Which of the following is true about the replace nodes function in XQuery?

Answer: c) It is used to update nodes in an XML document

Explanation: The replace nodes function in XQuery is used to update nodes in an XML document.

19. Which of the following is true about the copy-of function in XQuery?

a) It is used to copy nodes from one XML document to another
b) It is used to delete nodes from an XML document
c) It is used to update nodes in an XML document
d) It is used to create new nodes in an XML document

Answer: a) It is used to copy nodes from one XML document to another

Explanation: The copy-of function in XQuery is used to copy nodes from one XML document to another.

20. Which of the following is true about the transform function in XQuery?

a) It is used to transform XML documents into HTML documents
b) It is used to transform XML documents into JSON documents
c) It is used to transform XML documents into other XML documents
d) It is used to transform XML documents into binary documents

Answer: c) It is used to transform XML documents into other XML documents

Explanation: The transform function in XQuery is used to transform XML documents into other XML documents, using XSLT stylesheets.

21. Which of the following is true about the for clause in XQuery?

a) It is used to create variables
b) It is used to iterate over a sequence of items
c) It is used to filter a sequence of items
d) It is used to sort a sequence of items

Answer: b) It is used to iterate over a sequence of items

Explanation: The for clause in XQuery is used to iterate over a sequence of items and perform operations on each item.

22. Which of the following is true about the order by clause in XQuery?

a) It is used to create variables
b) It is used to iterate over a sequence of items
c) It is used to filter a sequence of items
d) It is used to sort a sequence of items

Answer: d) It is used to sort a sequence of items

Explanation: The order by clause in XQuery is used to sort a sequence of items based on certain criteria.

23. Which of the following is true about the return clause in XQuery?

a) It is used to create variables
b) It is used to iterate over a sequence of items
c) It is used to filter a sequence of items
d) It is used to return a sequence of items

Answer: d) It is used to return a sequence of items

Explanation: The return clause in XQuery is used to return a sequence of items that have been processed by the query.

24. Which of the following is true about the group by clause in XQuery?

a) It is used to create variables
b) It is used to iterate over a sequence of items
c) It is used to filter a sequence of items
d) It is used to group a sequence of items

Answer: d) It is used to group a sequence of items

Explanation: The group by clause in XQuery is used to group a sequence of items based on certain criteria.

25. Which of the following is true about the count function in XQuery?

a) It returns the number of items in a sequence
b) It returns the first item in a sequence
c) It returns the last item in a sequence
d) It returns a sequence of boolean values

Answer: a) It returns the number of items in a sequence

Explanation: The count function in XQuery is used to return the number of items in a sequence.

26. Which of the following is true about the typeswitch statement in XQuery?

a) It is used to create variables
b) It is used to iterate over a sequence of items
c) It is used to filter a sequence of items
d) It is used to perform different operations based on the type of an item

Answer: d) It is used to perform different operations based on the type of an item

Explanation: The typeswitch statement in XQuery is used to perform different operations based on the type of an item in a sequence.

27. Which of the following is true about the every keyword in XQuery?

a) It is used to check if all items in a sequence satisfy a certain condition
b) It is used to check if any item in a sequence satisfies a certain condition
c) It is used to create variables
d) It is used to iterate over a sequence of items

Answer: a) It is used to check if all items in a sequence satisfy a certain condition

Explanation: The every keyword in XQuery is used to check if all items in a sequence satisfy a certain condition.

28. Which of the following is true about the some keyword in XQuery?

Answer: b) It is used to check if any item in a sequence satisfies a certain condition

Explanation: The some keyword in XQuery is used to check if any item in a sequence satisfies a certain condition.

29. Which of the following is true about the order modifier in XQuery?

a) It is used to sort a sequence of items in ascending order
b) It is used to sort a sequence of items in descending order
c) It is used to filter a sequence of items
d) It is used to create variables

Answer: b) It is used to sort a sequence of items in descending order

Explanation: The order modifier in XQuery is used to sort a sequence of items in descending order.

30. Which of the following is true about the stable modifier in XQuery?

a) It is used to sort a sequence of items in ascending order
b) It is used to sort a sequence of items in descending order
c) It is used to ensure that the order of equal items is preserved during sorting
d) It is used to create variables

Answer: c) It is used to ensure that the order of equal items is preserved during sorting

Explanation: The stable modifier in XQuery is used to ensure that the order of equal items is preserved during sorting.

31. Which of the following is true about the validate strict mode in XQuery?

a) It performs strict validation of XML documents
b) It performs lax validation of XML documents
c) It does not perform any validation of XML documents
d) It is not a valid mode in XQuery

Answer: a) It performs strict validation of XML documents

Explanation: The validate strict mode in XQuery performs strict validation of XML documents, ensuring that the document conforms to its schema.

32. Which of the following is true about the validate lax mode in XQuery?

a) It performs strict validation of XML documents
b) It performs lax validation of XML documents
c) It does not perform any validation of XML documents
d) It is not a valid mode

Answer: b) It performs lax validation of XML documents

Explanation: The validate lax mode in XQuery performs lax validation of XML documents, allowing for some non-conformance to the schema.

33. Which of the following is true about the validate strict mode in XQuery Update Facility?

a) It performs strict validation of XML documents
b) It performs lax validation of XML documents
c) It does not perform any validation of XML documents
d) It is not a valid mode in XQuery Update Facility

Answer: d) It is not a valid mode in XQuery Update Facility

Explanation: The validate strict mode is not a valid mode in XQuery Update Facility.

34. Which of the following is true about the validate lax mode in XQuery Update Facility?

Answer: d) It is not a valid mode in XQuery Update Facility

Explanation: The validate lax mode is not a valid mode in XQuery Update Facility.

35. Which of the following is true about the transform expression in XQuery?

a) It is used to create new XML documents from existing XML documents
b) It is used to perform mathematical calculations
c) It is used to create variables
d) It is used to sort a sequence of items

Answer: a) It is used to create new XML documents from existing XML documents

Explanation: The transform expression in XQuery is used to create new XML documents from existing XML documents.

36. Which of the following is true about the copy expression in XQuery?

a) It is used to create new XML documents from existing XML documents
b) It is used to copy XML elements from one document to another
c) It is used to create variables
d) It is used to sort a sequence of items

Answer: b) It is used to copy XML elements from one document to another

Explanation: The copy expression in XQuery is used to copy XML elements from one document to another.

37. Which of the following is true about the try-catch expression in XQuery?

a) It is used to perform mathematical calculations
b) It is used to catch errors that occur during the execution of a query
c) It is used to create variables
d) It is used to sort a sequence of items

Answer: b) It is used to catch errors that occur during the execution of a query

Explanation: The try-catch expression in XQuery is used to catch errors that occur during the execution of a query.

38. Which of the following is true about the namespace declaration in XQuery?

a) It is used to declare a namespace prefix for use in a query
b) It is used to declare a namespace URI for use in a query
c) It is used to declare a namespace prefix and URI for use in a query
d) It is used to create variables

Answer: c) It is used to declare a namespace prefix and URI for use in a query

Explanation: The namespace declaration in XQuery is used to declare a namespace prefix and URI for use in a query.

39. Which of the following is true about the let expression in XQuery?

a) It is used to create variables
b) It is used to sort a sequence of items
c) It is used to filter a sequence of items
d) It is used to perform mathematical calculations

Answer: a) It is used to create variables

Explanation: The let expression in XQuery is used to create variables.

40. Which of the following is true about the typeswitch expression in XQuery?

a) It is used to filter a sequence of items based on their type
b) It is used to sort a sequence of items
c) It is used to create variables
d) It is used to perform mathematical calculations

Answer: a) It is used to filter a sequence of items based on their type

Explanation: The typeswitch expression in XQuery is used to filter a sequence of items based on their type.

41. Which of the following is true about the sum function in XQuery?

a) It is used to count the number of items in a sequence
b) It is used to perform mathematical calculations on a sequence of numeric items
c) It is used to create variables
d) It is used to sort a sequence of items

Answer: b) It is used to perform mathematical calculations on a sequence of numeric items

Explanation: The sum function in XQuery is used to perform mathematical calculations on a sequence of

42. Which of the following is true about the substring function in XQuery?

a) It is used to count the number of items in a sequence
b) It is used to perform mathematical calculations on a sequence of numeric items
c) It is used to extract a substring from a string
d) It is used to sort a sequence of items

Answer: c) It is used to extract a substring from a string

Explanation: The substring function in XQuery is used to extract a substring from a string.

43. Which of the following is true about the replace function in XQuery?

a) It is used to count the number of items in a sequence
b) It is used to perform mathematical calculations on a sequence of numeric items
c) It is used to replace a substring in a string
d) It is used to sort a sequence of items

Answer: c) It is used to replace a substring in a string

Explanation: The replace function in XQuery is used to replace a substring in a string.

44. Which of the following is true about the if-then-else expression in XQuery?

a) It is used to filter a sequence of items
b) It is used to sort a sequence of items
c) It is used to create variables
d) It is used to perform conditional operations

Answer: d) It is used to perform conditional operations

Explanation: The if-then-else expression in XQuery is used to perform conditional operations.

45. Which of the following is true about the every function in XQuery?

a) It is used to check if every item in a sequence satisfies a specified condition
b) It is used to perform mathematical calculations on a sequence of numeric items
c) It is used to create variables
d) It is used to remove duplicate values from a sequence

Answer: a) It is used to check if every item in a sequence satisfies a specified condition

Explanation: The every function in XQuery is used to check if every item in a sequence satisfies a specified condition.

46. Which of the following is true about the some function in XQuery?

Answer: d) It is used to check if at least one item in a sequence satisfies a specified condition

Explanation: The some function in XQuery is used to check if at least one item in a sequence satisfies a specified condition.

47. Which of the following is true about the intersect operator in XQuery?

a) It is used to merge two sequences
b) It is used to subtract one sequence from another
c) It is used to find the common items in two sequences
d) It is used to sort a sequence of items

Answer: c) It is used to find the common items in two sequences

Explanation: The intersect operator in XQuery is used to find the common items in two sequences.

48. Which of the following is true about the union operator in XQuery?

a) It is used to merge two sequences
b) It is used to subtract one sequence from another
c) It is used to find the common items in two sequences
d) It is used to remove duplicate items from a sequence

Answer: a) It is used to merge two sequences

Explanation: The union operator in XQuery is used to merge two sequences.

49. Which of the following is true about the except operator in XQuery?

Answer: b) It is used to subtract one sequence from another

Explanation: The except operator in XQuery is used to subtract one sequence from another.

50. Which of the following is true about the document function in XQuery?

a) It is used to create a new document
b) It is used to count the number of items in a sequence
c) It is used to retrieve the contents of a document
d) It is used to remove duplicate items from a sequence

Answer: c) It is used to retrieve the contents of a document

Explanation: The document function in XQuery is used to retrieve the contents of a document.

51. Which of the following is true about the default namespace declaration in XQuery?

a) It is used to create a new namespace
b) It is used to retrieve the contents of a namespace
c) It is used to specify a prefix for a namespace
d) It is used to specify a default namespace for a document

Answer: d) It is used to specify a default namespace for a document

Explanation: The default namespace declaration in XQuery is used to specify a default namespace for a document.

52. Which of the following is true about the namespace-uri function in XQuery?

a) It is used to retrieve the prefix of a namespace
b) It is used to retrieve the contents of a namespace
c) It is used to retrieve the URI of a namespace
d) It is used to remove a namespace from a document

Answer: c) It is used to retrieve the URI of a namespace

Explanation: The namespace-uri function in XQuery is used to retrieve the URI of a namespace.

53. Which of the following is true about the namespace axis in XQuery?

a) It is used to retrieve all the elements in a namespace
b) It is used to retrieve all the attributes in a namespace
c) It is used to retrieve all the elements and attributes in a namespace
d) It is not a valid axis in XQuery

Answer: c) It is used to retrieve all the elements and attributes in a namespace

Explanation: The namespace axis in XQuery is used to retrieve all the elements and attributes in a namespace.

54. Which of the following is true about the ancestor axis in XQuery?

a) It is used to retrieve all the ancestors of an element
b) It is used to retrieve all the descendants of an element
c) It is used to retrieve all the siblings of an element
d) It is not a valid axis in XQuery

Answer: a) It is used to retrieve all the ancestors of an element

Explanation: The ancestor axis in XQuery is used to retrieve all the ancestors of an element.

55. Which of the following is true about the descendant axis in XQuery?

Answer: b) It is used to retrieve all the descendants of an element

Explanation: The descendant axis in XQuery is used to retrieve all the descendants of an element.

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XQuery Quiz – XQuery Multiple Choice Questions and Answers

Top 55 XQuery Quiz MCQs

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