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WGU - C949 - Study Sets Questions with Solutions
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WGU - C949 - Study Sets
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WGU - C949 - Study SetsAn ADT for holding ordered data.
Common underlying data structures:
Array, linked list - answer List
An ADT in which items are only inserted on or removed from the top of a stack.
Common underlying data structures:
Linked list - answerStack
An ADT in which items are inserted at the end of the queue and removed from the front
of the queue.
Common underlying data structures:
Linked list - answerQueue
An ADT in which items can be inserted and removed at both the front and back.
Common underlying data structures:
Linked list - answerDeque
An ADT for storing items in which the order does not matter and duplicate items are
allowed.
Common underlying data structures:
Array, linked list - answerBag
An ADT for a collection of distinct items.
Common underlying data structures:
Binary search tree, hash table - answerSet
A queue where each item has a priority, and items with a higher priority are closer to the
front of the queue than items with a lower priority.
Common underlying data structures:
Heap - answerPriority queue
An ADT that associates (or maps) keys with values.
, Common underlying data structures:
Hash table, binary search tree - answerDictionary (Map)
Data structure that stores subitems, often called fields, with a name associated with
each subitem. - answerRecord
Data structure that stores an ordered list of items, where each item is directly accessible
by a positional index. - answerArray
Data structure that structure that stores an ordered list of items in nodes, where each
node stores data and has a pointer to the next node. - answerLinked list
Data structure in which each node stores data and has up to two children, known as a
left child and a right child. - answerBinary tree
Data structure that stores unordered items by mapping(or hashing) each item to a
location in an array. - answerHash table
A tree that maintains the sumple property that node's key is greater than or equal to the
node's childrens keys. - answerMax-heap
A tree that maintains the simple property that a node's key is less than or equal to the
node's children's keys. - answerMin-heap
Data structure for representing connections among items, and consists of vertices
connected by edges. - answerGraph
Represents an item in a graph. - answerVertex
Rerpresents a connection between two vertices in a graph. - answerEdge
Abstract Data Type:
Add: adds an item
Remove: removes an item
Get: Retrieves an item from the list - answerList
A data type is described by predefined user operations, such as "insert data at rear,"
without indication of how each operation is implemented. - answerAbstract Data Type
A data structure for implementing a list ADT, where each node has data and a pointer to
the next node. - answerSingly-linked list
Singly-linked list's first node. - answerHead
Singly-linked list's last node. - answerTail
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