FiSi vs Manual Override

Master IT networking through practice, not theory. FiSi-Training: IT Practice is a hands-on learning app for networking fundamentals, designed for students and learners preparing for IT certifications such as CompTIA Network+ and CCNA-level topics. Instead of passive videos or reading-heavy courses, you solve real interactive problems and get instant feedback. --- What you practice Train across 15 structured modules covering essential IT and networking skills: * Binary, decimal, and hexadecimal conversions * IPv4 subnetting and network calculations * IPv6 subnetting and address structure * Network IDs, broadcast addresses, and host ranges * VLSM (Variable Length Subnet Masking) * Public vs private IP addressing * TCP/UDP ports and services * OSI model and protocol layers * Logic gates and digital fundamentals * Truth tables and boolean logic * Data transfer rate calculations * Bandwidth and throughput conversions --- Learn by doing Each task follows a simple loop: * Generate a new problem * Solve it interactively * Get instant correctness feedback * Reveal the correct solution if needed * Track your progress over time --- Exam simulation mode Prepare under real exam conditions: * Custom test duration (10–60 minutes) * Select specific modules or all topics * Normal or expert difficulty mode * Timed questions with scoring system * Detailed results breakdown per topic * Weakness analysis to improve faster --- Progress tracking & leaderboard * Track your performance across modules * Review past exam sessions * Identify weak areas automatically * Compare results on global leaderboards (Premium) --- Who this app is for Perfect for: * IT students and apprentices * CompTIA Network+ learners * CCNA beginners * System and network administrators in training * Anyone learning networking fundamentals --- Premium features Upgrade to unlock: * Unlimited practice questions * Full exam simulation mode * Advanced statistics and history * Global leaderboard access * Timer and expert difficulty modes --- Why this app works Networking is not learned by watching. It is learned by solving. This app turns core IT concepts into interactive problem-solving drills so you actually understand subnetting, addressing, and protocols instead of memorizing them. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

A hands-on introduction to the command line and SQL. You type the commands. No videos, no syntax tables to memorise. Each lesson hands you real material and a question you have to answer yourself, and you answer it by typing real commands. Get one wrong and you get a real error message, worded the way a real terminal words it. WHAT YOU LEARN · Filesystem: pwd, ls (with -a / -R), cd, cat, find · Text: head, tail (with -n +N / -n -N), wc, sort, uniq · Search: grep, with -i / -R / -F / -n and regular expressions · Compare and verify: diff (normal and -u unified format), sha256sum · SQL: SELECT, WHERE, ORDER BY, LIKE, JOIN, GROUP BY / COUNT / HAVING · One habit running through all of it: any conclusion should be something a stranger can re-run command by command HOW THE COURSE IS BUILT Eleven lessons, each with one answer you have to find for yourself. The material is a virtual filesystem and a real SQLite database. Commands run in a sandbox and never touch your device; the database is read-only, so no query you write can break anything. Most puzzles accept more than one solution: the way you already know works too. ALSO INCLUDED · Offline syntax manual and table-schema reference, always one tap away · Practice mode (with the full course): the terminal and database with no lesson flow, just type · Command and flag completion, Tab completion, history recall — built for touch · Three colour schemes, text size, reduced motion, haptics toggle · Runs entirely offline. No network, no data collected, no account, no ads ABOUT THE STORY A fictional storyline ties the eleven lessons together: you are reviewing an obsolete course package scheduled for deletion, and you use each command you have just learned to check the material against itself. The story is the premise for the exercises, not a substitute for them — every conclusion is still one you type out yourself. The prologue and the first three lessons — the whole command-line half — are free. Lessons 4 to the finale (the SQL half) and practice mode are one purchase: no subscription, no ads, no account.