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Digital TechnologyQ&A by dot point
A short Q&A bank for every Wales Digital Technology syllabus dot point. Each question and answer is drawn directly from our worked dot-point page, so you can scan key concepts before opening the long-form answer.
Cyber security
- Describe the consequences of cyber attacks and data loss for individuals and organisations, and explain how backups and business continuity support recovery.0Q&A pairs
- Describe technical and behavioural methods of protecting systems and data, including passwords, firewalls, antivirus, encryption, updates and user training.0Q&A pairs
- Describe the main cyber threats (malware, phishing, social engineering, hacking, denial-of-service) and the vulnerabilities that attackers exploit.0Q&A pairs
- Describe the main laws affecting digital technology (data protection, the Computer Misuse Act and copyright law) and explain the duties and offences each defines.0Q&A pairs
Data
- Explain the purpose of data compression and describe the difference between lossy and lossless compression, including when each is appropriate.0Q&A pairs
- State the units used to measure data (bit, byte, KB, MB, GB, TB), convert between them, and calculate and compare file and storage sizes.0Q&A pairs
- Explain why digital systems store and process all data as binary, and describe how bits, nibbles and bytes represent numbers, text and other data.0Q&A pairs
- Describe how bitmap images are represented using pixels and colour depth, and explain how resolution and colour depth affect image quality and file size.0Q&A pairs
- Describe how analogue sound is sampled to produce digital data, and explain how sample rate and bit depth affect sound quality and file size.0Q&A pairs
- Describe solid-state, magnetic, optical and cloud storage, compare their characteristics, and choose appropriate storage for a given situation.0Q&A pairs
Digital communications
- Describe the main methods of digital communication (email, messaging, VoIP, video conferencing, social media) and select an appropriate method for a given situation.0Q&A pairs
- Explain how to evaluate the reliability of online sources and information, considering authority, accuracy, bias, currency and corroboration.0Q&A pairs
- Describe social networking and online collaboration, and evaluate their benefits and risks for individuals and organisations.0Q&A pairs
Digital technology systems
- Describe how digital systems interact through input and output devices, and how devices connect to each other to share data and services.0Q&A pairs
- Identify the main items of network hardware (NIC, switch, router, wireless access point, transmission media) and describe the function of each.0Q&A pairs
- Describe the purpose of an operating system and explain its main functions, including managing hardware, memory, files, the user interface and security.0Q&A pairs
- Distinguish between system software and application software, give examples of each, and describe the role of application software in carrying out user tasks.0Q&A pairs
- Explain what the internet is, how it differs from the World Wide Web, and the roles of IP addresses, DNS and the client-server model.0Q&A pairs
- Describe the stages of the systems development life cycle (analysis, design, development, testing, implementation and evaluation/maintenance) and explain why a structured process is used.0Q&A pairs
- Describe LANs and WANs, wired and wireless connections, and explain the benefits and drawbacks of connecting computers in a network.0Q&A pairs
- Describe the purpose of utility software and the function of common utilities such as antivirus, backup, compression and disk maintenance tools.0Q&A pairs
The impact of digital technology
- Describe emerging and evolving digital technologies such as artificial intelligence, the Internet of Things, virtual and augmented reality, and explain their uses and impacts.0Q&A pairs
- Describe the ethical, social and environmental impacts of digital technology, including privacy, the digital divide, e-waste and energy use.0Q&A pairs
- Describe how digital technology has changed the way people work and how organisations trade and make money, including new business and monetisation models.0Q&A pairs