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Statistics for IB Computer Science Topic 4.2 - Connecting Computational Thinking and Program Design

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General Stats
Answer Stats
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General Stats

This quiz has been taken 60 times
The average score is 7 of 16

Answer Stats

Definition	Term	% Correct
Stores a value that can be changed during execution. Has a name/identifier.	Variable	90%
Can hold multiple data elements of only same type (String, int, boolean, etc.) or objects. Has a name, size cannot be changed during execution. Can be one-dimensional/linear or two-dimensional.	Array	87%
Very slow sorting algorithm that compares two adjacent elements in array, swapping them if not in correct (ascending or descending) order. Stops when no swaps were required.	Bubble sort	68%
Unlike above, requires sorted array. Eliminates upper or lower half of array every iteration until search value is found.	Binary search	61%
Visual representation of algorithm	Flowchart	55%
Simplest search algorithm. Looks through every index in array for search value.	Sequential search	55%
Algorithm whose syntax is not as strict as computer languages. Cannot be understood by computers.	Pseudocode	52%
Very simple sorting algorithm, where largest or smallest element of array is swapped with leftmost unsorted element.	Selection sort	45%
Like resizable array, and may hold elements of different data types. Operations include: addItem(), getNext(), hasNext()	Collection	42%
Measure of efficiency of algorithm. Represented as O(n), where n is number of times algorithm is executed.	Big O notation	32%
Amount of computer resources such as CPU and memory required to perform functions.	Efficiency	19%
Indicates condition. Its value is changed when condition changed. Usually boolean variable. For example, can be used to end a loop.	Flag	19%
Capability of algorithm to maintain predefined level of performance and perform all required functions under stated conditions, having long mean time between failures.	Reliability	13%
Extent to which algorithm satisfies expectations and all objectives from design and implementation phase, and is free from faults	Correctness	10%
Effort required to modify algorithm for purposes other than what it was originally developed for.	Flexibility	6%
Useful for storing different properties of entity, e.g. Student names and equivalent grades	Parallel arrays	3%

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