Array

Term

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See every item in the sequence

Definition

A data structure holding a fixed number of items of the same type, accessed by index; can be single or multi-dimensional (rows and columns).

Example: 'marks[0]' is the first item.

Found in: syllabus, course specifications, 2025 HSC marking guidelines, school notes, past SDD papers.

Where you'll use it in the test

Syllabus area: Y11 Programming Fundamentals.

Question types it can appear in

Pseudocode: Iterate and sum an array
Python: 2D list
Multiple choice: Pick the option that matches the definition or example.
Code reading: Code or algorithm reading: interpret a fragment and state its output or purpose.

Where it has appeared in the paper

The Software Engineering Project (Part A, B). Part letters follow each paper’s own layout.

How to use it

A model sentence

General advice, built from the definition and example above

“A data structure holding a fixed number of items of the same type, accessed by index; can be single or multi-dimensional (rows and columns).” Then apply it: 'marks[0]' is the first item.

In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.

Command words used with it

From the linked past questions

Identify: Recognise and name. (Sample exam Q21a (1 mark): 2D arrays (Python))

Official worked answer

Sample exam Q21a (1 mark): 2D arrays (Python) (1 mark): official criteria and sample answer

Criteria

1: Identifies the correct answer.

Sample answer

Timetable[0][2] (day index 0 = Monday, period index 2 = Period 3).

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Go deeper

Flashcard: Array in Programming Fundamentals (Year 11) · study that set
Memorise: Data structures
Full term page: every question, note and marking comment for Array

Check yourself

Explain “Array” in one sentence, give an example, and name a question type that could test it.

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