A Level Computer Science OCR Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the A Level Computer Science OCR Exam with comprehensive quizzes that cover essential topics, flashcards, and detailed explanations to help you excel. Ace your exam with confidence!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is a Graph Tree?

A data structure that organizes elements into a hierarchical manner
A method used for sorting arrays
A type of algorithm used for optimization
A specific type of variable

The correct answer is: A data structure that organizes elements into a hierarchical manner

A graph tree refers to a data structure that organizes elements in a hierarchical manner, which is essential in various computer science applications. Trees are a subset of graphs, characterized by having a root node and child nodes, where every element except the root has exactly one parent. This structure enables efficient data organization, making it simpler to perform operations such as searching, inserting, or deleting elements. The hierarchical nature of a tree allows for a clear representation of relationships among data, such as organizational charts or file system organization, where each child node represents subsequent levels of hierarchy. Other concepts mentioned, such as sorting arrays, optimization algorithms, or specific variable types, do not capture the essence of a tree's hierarchical data organization, which is pivotal in understanding various algorithms and data structures in computer science.