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Tree
Term Y11 Programming Fundamentals
Definition
A hierarchical data structure of nodes: one root, each node having child nodes and leaves at the bottom (for example folder structures or decision trees).
Example: A file system is a tree.
Found in: syllabus, course specifications, sample exam and familiarisation guidelines, school notes, past SDD papers.
Where it is used in the test
Syllabus area: Y11 Programming Fundamentals.
Question types it can appear in
- Multiple choice: Pick the option that matches the definition or example.
- Fill in the blanks: Choose this term to complete a statement or table.
- Drawing: decision tree
No past question in this bank is linked to this term yet. It can still be tested through the question types above.
Study links
- Flashcard: Tree in Programming Fundamentals (Year 11) · study that set
- Memorise: Data structures
How to use it in an answer
A model sentence
“A hierarchical data structure of nodes: one root, each node having child nodes and leaves at the bottom (for example folder structures or decision trees).” Then apply it: A file system is a tree.
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.
Technique for the question types
- Multiple choice: Read all four options, rule out wrong ones, pick one; no penalty for guessing so never leave blank.
- Fill in the blanks: Choose the right word from a list; use exact syllabus terms.
- Drawing: Use the online drawing tool: label every symbol and arrow, use the correct symbols from the specification, and add every required item.
Common mistakes
- Drawing questions (2025 HSC exam Q22): refine attributes into separate inherited classes; use appropriate class diagram symbols.
- Use the term exactly as the syllabus words it, then link it to the scenario in the question; the 2025 feedback repeatedly rewards using the stimulus.
- Answer the command word: outline gives main points only, explain gives a reason or cause, discuss gives both sides.
Related terms
Same group in the syllabus: Binary (base 2) · Decimal (base 10) · Hexadecimal (base 16) · Two's complement · Character representation (ASCII, Unicode) · Data types · Integer · Real (floating point) · Boolean · Character and string · Date and time · Array · Multi-dimensional array · Record