IT and Tech Certifications Flashcards

Pass your CompTIA A+ certification with this comprehensive flashcard deck covering all the core concepts tested on the CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) exams. The CompTIA A+ is the industry-standard entry-level IT certification, held by over a million IT professionals worldwide, and is recognized by Microsoft, Dell, Intel, and the US Department of Defense. This deck covers PC hardware components, storage technologies, display technologies, networking fundamentals, operating system basics, virtualization, cloud computing, troubleshooting methodology, security fundamentals, and operational procedures. Based on publicly available CompTIA A+ exam objectives.

Build a solid understanding of computer networking with this comprehensive flashcard deck aligned to CompTIA Network+ objectives. Networking knowledge is essential for virtually every IT role — from help desk to system administrator to network engineer. This deck covers the OSI and TCP/IP reference models, IP addressing (IPv4 and IPv6), subnetting, CIDR notation, DNS, DHCP, network devices (routers, switches, firewalls), network topologies, wireless networking (802.11 standards), VLANs, NAT, key protocols and their port numbers, and network troubleshooting. Based on publicly available CompTIA Network+ (N10-008) exam objectives.

Twenty flashcards covering the Python language essentials that appear in coursework, technical interviews and certification exams. Includes mutable versus immutable types, lists, tuples, dictionaries and sets, slicing, comprehensions, function arguments, LEGB scope, exception handling, context managers, classes and inheritance, generators, decorators and the Global Interpreter Lock.

Twenty flashcards covering the vocabulary and architecture of public cloud, with AWS and Azure service equivalents shown side by side. Includes the service and deployment models, the shared responsibility model, regions and availability zones, elasticity and scaling, compute and storage options, networking, IAM, serverless, containers, infrastructure as code and cost models. Preparation for AWS Cloud Practitioner and Azure AZ-900.

Twenty flashcards covering the essentials of relational databases and SQL. Includes primary and foreign keys, the major join types, normalisation up to third normal form, aggregate functions and GROUP BY, indexes, transactions and ACID properties, and the difference between SQL and NoSQL. Useful for interviews, coursework and database certification prep.

Nineteen flashcards covering the Linux command line fundamentals every developer and sysadmin should know. Includes navigation and file management commands, the permissions model and chmod/chown, process management, piping and redirection, package managers, and essential tools like grep, find and ssh. Useful for CompTIA Linux+, coursework and technical interviews.

JavaScript powers interactivity on nearly every website, and this deck of 20 flashcards covers the core concepts you need to start writing it confidently. You'll learn the differences between var, let and const, JavaScript's primitive data types, and the crucial distinction between == and === comparison, before moving into functions, arrow function syntax, and how to manipulate the DOM to respond to user events. The deck also covers essential array methods (map, filter, reduce), destructuring and the spread operator, and finishes with asynchronous JavaScript — promises, async/await, callbacks — plus closures and how the this keyword behaves. Whether you're starting a web development bootcamp, working through coursework, or preparing for a junior developer technical interview, this deck focuses on the concepts that appear most frequently in both real-world code and interview questions.

Every professional software team relies on version control, and Git is the industry standard — this deck of 20 flashcards covers everything you need to collaborate confidently on code. You'll learn what a repository is and the core commands for everyday work: init, clone, add, commit, push and pull, then move into branching and merging, including how to resolve merge conflicts when they occur. The deck also explains pull requests and code review workflows, the purpose of a .gitignore file, and the difference between git revert and git reset, finishing with forking versus cloning and how commit hashes work. Useful for anyone starting a software development course, joining a development team, or preparing for a technical interview, this deck builds the practical vocabulary and command knowledge needed to work in a real Git-based workflow from day one.

HTML and CSS are the foundation of every website, and this deck of 20 flashcards covers the essential building blocks for beginners. You'll start with HTML document structure and semantic elements, then move into CSS fundamentals — selectors, specificity, and the box model that governs how every element's spacing works. The deck covers modern layout tools including flexbox and grid, responsive design principles and media queries, and positioning concepts like relative versus absolute. It finishes with practical details that matter for accessibility and SEO, including alt text, the viewport meta tag, and pseudo-classes like :hover. Ideal for anyone starting a web development course or building their first website, this deck focuses on the terminology and concepts that come up constantly in tutorials, documentation and coding interviews, giving you a solid foundation before moving on to JavaScript and frameworks.

Data structures and algorithms are the backbone of technical interviews at every major tech company, and this deck of 20 flashcards introduces the concepts you'll be expected to know. You'll start with Big O notation and how to reason about time and space complexity, then cover the core data structures — arrays, linked lists, stacks, queues, hash tables and binary search trees — comparing their strengths and trade-offs. The deck moves into algorithmic thinking with recursion, binary search, and the classic sorting algorithms (bubble sort, merge sort, quicksort), finishing with graph traversal methods (depth-first and breadth-first search). Suited to computer science coursework and coding interview preparation, this deck focuses on building the conceptual vocabulary and complexity intuition that lets you discuss trade-offs clearly, whether you're solving a whiteboard problem or reviewing a teammate's pull request.

Build a strong foundation in cybersecurity with this comprehensive flashcard deck covering the core concepts every IT professional needs to understand — whether you're studying for CompTIA Security+, starting a career in IT support, or simply want to protect your own systems and data. Cybersecurity threats grow more sophisticated every year, making foundational knowledge essential across virtually every technology role. This deck covers the CIA triad, common malware types, authentication factors and multi-factor authentication, encryption basics (symmetric vs asymmetric), common network attacks (phishing, DDoS, man-in-the- middle), social engineering tactics, password security, firewalls and VPNs, and general security best practices. Based on publicly available CompTIA Security+ exam objectives and standard cybersecurity frameworks.

Understand the technology that powers modern software, streaming services, and business infrastructure with this cloud computing fundamentals flashcard deck. Cloud computing has fundamentally transformed how organizations build, deploy, and scale technology — replacing physical data centers with flexible, on-demand computing resources delivered over the internet. This deck covers the three main service models (IaaS, PaaS, SaaS), deployment models (public, private, hybrid, multi-cloud), virtualization and containers, key characteristics like elasticity and scalability, major cloud providers (AWS, Azure, GCP), core cloud services, and cloud security considerations. Essential for CompTIA Cloud+, AWS Cloud Practitioner, and anyone starting a career in cloud infrastructure.

Learn the core concepts behind continuous integration, continuous delivery, containerization, and infrastructure automation. This deck of 30 flashcards covers the tools, terminology, and practices that power modern DevOps pipelines — from Jenkins and Docker to Terraform and SRE metrics.