
Code.org Traversals Practice

Quiz
•
Computers
•
12th Grade
•
Easy
Sonia Legg
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of traversing a data structure in computer science?
To skip over elements in the data structure
To visit and process each element or node in the data structure.
To only process the first element in the data structure
To rearrange the elements in the data structure
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the difference between depth-first traversal and breadth-first traversal.
The main difference is in the order in which nodes are visited and how they are stored for future visits.
Depth-first traversal always visits all the children of a node before moving on to the next node, while breadth-first traversal visits nodes level by level
Depth-first traversal uses a queue data structure, while breadth-first traversal uses a stack data structure
Depth-first traversal always starts at the root node, while breadth-first traversal can start at any node
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is a pre-order traversal different from an in-order traversal?
The main difference is the order in which the nodes are visited: root-left-right for pre-order, and left-root-right for in-order.
In pre-order traversal, nodes are visited from right to left
The pre-order traversal visits nodes in reverse order compared to in-order traversal
Pre-order traversal visits nodes in a random order
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the advantages of using a traversal algorithm in coding?
The advantages of using a traversal algorithm in coding include efficient data processing, easy navigation of complex data structures, and the ability to perform tasks like searching and sorting.
Increased likelihood of errors in the code
Slower data processing speed
Limited functionality in handling complex data structures
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Provide an example of a real-world application where traversal algorithms are used.
Online shopping websites
Social media platforms
Weather forecasting systems
GPS navigation systems
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are some common data structures that can be traversed using traversal algorithms?
Stacks, queues, and heaps
Tuples, dictionaries, and arrays
Arrays, linked lists, trees, graphs, and hash tables
Matrices, vectors, and sets
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the concept of backtracking in the context of traversal algorithms.
Backtracking is a process of randomly selecting paths in a graph or tree without considering the consequences
Backtracking involves always choosing the first available option in a traversal algorithm
Backtracking is a technique used to systematically explore all possible paths in a graph or tree by trying different options and abandoning those that do not work.
Backtracking is a method used to skip over certain nodes in a graph or tree to save time
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