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WGU C949 DATA TYPES STUDY GUIDE (DATA STRUCTURES & ALGORITHMS 1) WITH COMPLETE SOLUTIONS
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WGU C949 DATA TYPES STUDY GUIDE (DATA STRUCTURES & ALGORITHMS 1) WITH COMPLETE SOLUTIONSWGU C949 DATA TYPES STUDY GUIDE (DATA STRUCTURES & ALGORITHMS 1) WITH COMPLETE SOLUTIONSWGU C949 DATA TYPES STUDY GUIDE (DATA STRUCTURES & ALGORITHMS 1) WITH COMPLETE SOLUTIONS

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  • October 9, 2024
  • 16
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • wgu c949 data types study guide data structures
  • wgu c949 data types study guide data structures
  • array answer a data structure that stores an ord

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WGU C949 DATA TYPES STUDY

GUIDE (DATA STRUCTURES &

ALGORITHMS 1) WITH COMPLETE

SOLUTIONS


Array - ANSWER-A data structure that stores an ordered list of items, with

each item is directly accessible by a positional index.




Linked List - ANSWER-A data structure that stores ordered list of items in

nodes, where each node stores data and has a pointer to the next node.




Bianary Search Tree - ANSWER-A data structure in which each node stores

data and has up to two children, known as a left child and a right child.




Hash Table - ANSWER-A data structure that stores unordered items by

mapping (or hashing) each item to a location in an array (or vector).

,Abstract Data Type (ADT) - ANSWER-A data type described by predefined

user operations, such as "insert data at rear," without indicating how each

operation is implemented.




List - ANSWER-An ADT for holding ordered data. Dups ok




Sequence type: A mutable container with ordered elements.




Underlying data structures: Array, linked list




Array in Java - ANSWER-generic class that supports different data types.

declared as follows, where T is the data type.

Queue - ANSWER-An ADT in which items are inserted at the end of the queue

and removed from the front of the queue.




*first-in first-out ADT.




Underlying data structures: Linked list, Array, Vector

, The Queue class' push() method uses the LinkedList append() method to

insert elements in a queue.




Both the Stack and Queue pop() methods operate exactly the same by

removing the head element and returning the removed element.




Linked List - ANSWER-A linear data structure, much like an array, that

consists of nodes, where each node contains data as well as a link to the

next node, but that does not use contiguous memory.

Head and tail node




The LinkedList class implements the list data structure and contains two data

members, head and tail, which are assigned to nodes once the list is

populated. Initially the list has no nodes, so both data members are initially

assigned with None.




If the node has no next node, the next data member is assigned with None,

the Python term signifying the absence of a value.




Tuple - ANSWER-Sequence type: An immutable container with ordered

elements.

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