ATARMAxxing
← Digital Solutions

All VCE, HSC & QCE past papers by subject →

Ds
QCE · QCE Units 3 & 4 · official past papers

QCE Digital Solutions past exams 2021–2025, by year and topic

The official QCAA exams, marking guides and examiner reports we index, organised by topic and subtopic and labelled with the study design it was written under. Open the official paper, work the question in your own workspace, or bring a tutor into it live.

Index last synced .

Papers, marking guides and examiner reports open on the official QCAA website — they stay official and up to date. Question descriptions below are our own; we never republish exam content. Prefer to be walked through it? See the tutor directory →

Not sure what a topic below is actually meant to cover? Read the syllabus for Digital Solutions, area by area →

ATARMAxxing indexes 16 official QCAA Digital Solutions papers from 2021 to 2025, with 64 questions mapped to 4 topics. Every paper opens on the QCAA website.

Try a worked Digital Solutions question

The hub has an original model-exam question with its worked answer and a sample revision note, free to preview. The official papers below remain free on the exam authority's website.

Preview the worked question →
Digital Solutions 2019 syllabus (papers before the 2026 changes) · 2021–2025

QCE Digital Solutions exams by year: official papers & marking guidance

Past exams indexed: 2025, 2024, 2023, 2022, 2021. Open the official QCAA papers, with marking guidance where available.

YearStudy designOfficial paper(s)Marking guidance
2025 QCE Digital Solutions examDigital Solutions 2019 syllabus (papers before the 2026 changes)Question and response book ↗ · Multiple choice question book ↗ · Stimulus book ↗Marking guidance ↗
2024 QCE Digital Solutions examDigital Solutions 2019 syllabus (papers before the 2026 changes)Question and response book ↗ · Multiple choice question book ↗ · Stimulus book ↗Marking guidance ↗
2023 QCE Digital Solutions examDigital Solutions 2019 syllabus (papers before the 2026 changes)Question and response book ↗ · Multiple choice question book ↗ · Subject report ↗Marking guidance ↗
2022 QCE Digital Solutions examDigital Solutions 2019 syllabus (papers before the 2026 changes)Question and response book ↗ · Multiple choice question book ↗ · Stimulus book ↗Marking guidance ↗
2021 QCE Digital Solutions examDigital Solutions 2019 syllabus (papers before the 2026 changes)Question and response book ↗ · Multiple choice question book ↗ · Stimulus book ↗ · Subject report ↗Marking guidance ↗

16 official papers across 5 years (2021–2025), 5 with marking guidance, published by QCAA.

Browse by topic

Pick a topic, open the exact question in the official paper, then work it in your own workspace — or hand the question straight to a live tutor session.

Unit 4 Topic 1 — Digital methods for exchanging data · 18 mapped questions

Encryption algorithms

Secure transmission processes

Privacy and ethics

Network transmission

Data exchange methods

Classical ciphers

Emerging technologies

Authentication strategies

Also in this topic: Encryption and authentication strategies for securing data transmissions and their differences, e.g. 2FA/MFA using verification codes vs biometrics · Features of symmetric encryption algorithms (DES, Triple DES, AES, Blowfish, Twofish) and the asymmetric RSA algorithm · How data compression, encryption and hashing are used in the storage and transfer of data · How simple algorithms consist of input, process and output at various stages · Basic concepts of emerging technologies (machine learning, deep learning, neural networks, natural language processing) and how machine learning, deep learning, NLP and reinforcement learning algorithms process data differently · Australian Privacy Principles (2014) and ethics applicable to personally identifiable or sensitive data from a digital systems perspective · Network performance metrics: latency, jitter, and the guarantee and timeliness of delivery · Network transmission principles: protocol standards (TCP/IP, HTTP, FTP, VPN), packet switching, error detection and correction, routing and forwarding, flow and congestion control, quality of service (QoS), and security (confidentiality, integrity and availability) · Methods for data exchange across networked systems, including REST, JSON and XML, with APIs that facilitate exchange between systems and applications · Analyse and evaluate Caesar, polyalphabetic (Vigenère and Gronsfeld) and one-time pad encryption algorithms · Describe data using appropriate naming conventions, data formats and structures · Symbolise and explain how application sub-systems (front end, back end) work together, and secure transmission techniques (encryption, decryption, authentication, hashing, checksums) · Symbolise representations of a digital solution and data flow through a system using data flow diagrams · Develop algorithms with pseudocode using assignment, sequence, selection, condition, iteration and modularisation — question-level mapping in progress; the year table above links every official paper.

Unit 4 Topic 2 — Complex digital data exchange problems and solution requirements · 19 mapped questions

Problem analysis

Data security risks

Data flow diagrams

Data integrity and specification

Also in this topic: Identify, describe and determine the scope and usage of local and global variables · Analyse problems to determine scope, constraints and limitations, requirements of solution components, necessary coded modularity and features · Factors and risks that affect data security, including confidentiality, integrity, availability and privacy · Existing code within inbuilt libraries, and success criteria to appraise implementation (e.g. protection, security and interactions) · The potential role of emerging technologies such as machine learning in data exchange solutions · Analyse, evaluate and refine data to ensure completeness, consistency and integrity · Analyse and explain a system's data process with data flow diagrams linking external entities, data sources, processes and data storage · Determine manageable aspects of a problem by decomposing constraints, risks, available tools, code libraries and frameworks, data storage and output requirements, and the data interface · Determine data sources required to generate data components; develop algorithmic steps with pseudocode; explain code with comments and annotations · Communicate with digital technologies-specific language, annotations, sketches and diagrams — question-level mapping in progress; the year table above links every official paper.

Unit 4 Topic 3 — Prototype digital data exchanges · 16 mapped questions

Programming features and constructs

Encryption algorithms in pseudocode

Testing algorithms

Processing external data

Evaluation and impacts

SQL

Also in this topic: Basic algorithm constructs: assignment, sequence, selection, condition, iteration and modularisation · The five basic features of programming: variables, control structures, data structures, syntax, libraries and classes · Good programming practices: dependability, efficiency, testing, debugging, error correction, coding conventions including commenting, consistent naming, code simplicity and portability · Pseudocode for simple Caesar, polyalphabetic (Vigenère and Gronsfeld) and one-time pad encryption algorithms, and well-ordered unambiguous algorithms for defined problems · Receiving data from an external source, processing it and displaying it in an appropriate format; incorporating existing code libraries; exchanging data in JSON or XML · SQL: CREATE, DROP, ALTER, INSERT, UPDATE, SELECT, WHERE, GROUP BY, HAVING, ORDER BY, sub-selection and inner joins · Programmed methods: single and nested, simple and compound selection; nested iteration; arithmetic, comparison and logical operators including real division, integer division and modulus; data types, error-checking functions and conversions; one-dimensional arrays and lists · Desk checks to predict output for a given input, identify and fix errors and validate algorithms · Evaluate personal, social and economic impacts of the exchange, storage, accuracy and ownership of data and of emerging technologies such as AI · Evaluate solutions against success criteria and by testing accuracy, reliability, maintainability, efficiency, effectiveness and useability; make justified security recommendations — question-level mapping in progress; the year table above links every official paper.

Unit 4 Topic 1 (built on Unit 3) — Useability principles, visual communication and user-interface prototypes · 11 mapped questions

Useability principles

Visual communication and prototypes

Also in this topic: How useability principles (accessibility, effectiveness, safety, utility and learnability) inform solution development · How the elements (space, line, colour, shape, texture, tone, form, proportion, scale) and principles (balance, contrast, proximity, harmony, alignment, repetition, hierarchy) of visual communication inform user-interface development · Low-fidelity user-interface prototypes: sketches, wireframes and annotated mock-ups (Unit 3 foundations applied in Unit 4 data exchange contexts) · Evaluating existing interfaces against useability principles and recommending justified improvements — question-level mapping in progress; the year table above links every official paper.

Work a question with a tutor

If a QCE tutor is listed for Digital Solutions, the question you pick is attached when you book and loads into a shared live workspace — the tutor sees your working as you type, on a video call beside the official paper.

See Digital Solutions tutors →

Keep going