# 2025 Digital Solutions practice exam

<p><strong>Complete 2025 practice examination with the original QCAA material and independent, student-friendly explanations.</strong></p>
<div style="background:#eef6fb;border-left:4px solid #2b6f91;border-radius:4px;padding:.8rem 1rem;margin:1rem 0;"><p style="margin:0;"><strong>What this booklet does:</strong> Use the original paper as a timed or untimed practice exam, check your work against the official marking guide, then use the final explanation pages to learn how each answer is constructed.</p></div>
<h2>What is included</h2>
<ul><li>Original 2025 stimulus book</li><li>Original multiple-choice question book</li><li>Original question and response book</li><li>Official QCAA marking guide and sample responses</li><li>Independent explanations for every question</li><li>Alternative valid answers and worked visual examples where appropriate</li></ul>
<h2>Topics covered</h2>
<p>Encryption and hashing; programming and JSON; privacy and security; file transfer; data-flow diagrams; constraints; data dictionaries; desk checking; smart traffic systems; and useability.</p>
<h2>How to use the booklet</h2>
<ol><li>Complete the stimulus and examination questions on paper.</li><li>Compare your response with the official marking guide.</li><li>Read the independent explanations at the end, including why multiple-choice distractors do not fit.</li><li>Compare alternative responses and identify which marking criteria each one satisfies.</li></ol>
<h2>Download</h2>
<p><a href="https://mr.napper.au/attachments/25" style="display:inline-block;background:#173f5f;color:#fff;text-decoration:none;border-radius:4px;padding:.65rem 1rem;font-weight:600;">Open or download the 2025 practice-exam booklet</a></p>
<p>The same PDF is also available from the <strong>Attachments</strong> panel on this page.</p>
<p style="font-size:.85rem;color:#52606b;">Original assessment material: © State of Queensland (QCAA) 2025. The original documents retain their attribution and licence notices. The added cover and explanations are independent teaching material and are not an official QCAA publication or marking decision.</p>