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The Exam Cram

👋 Hey, welcome back to GetToKnow 4u! In this video we're breaking down the D322 OA Study Guide — Highest-Yield Topics! 🎯⚡ Your Objective Assessment is coming up and we’re not wasting any time. This video cuts straight to the topics most likely to show up on your exam so you can walk in confident and ready to pass! ───────────────────────────── 📚 WHAT WE COVER IN THIS VIDEO ───────────────────────────── 🔵 Networking → OSI Model — all 7 layers, functions & examples → Port Numbers — HTTP:80 · HTTPS:443 · FTP:21 · SSH:22 → Key protocols — TCP/IP · DNS · DHCP · SMTP 🟣 Hardware vs Software → RAM vs Storage — volatile vs non-volatile memory → Compiler vs Interpreter — how source code becomes a program → CPU · GPU · Motherboard · Input/Output devices 🟡 Data → DIKW Pyramid — Data · Information · Knowledge · Wisdom → SQL Basics — SELECT · WHERE · JOIN · GROUP BY → Structured vs Unstructured data · Big Data & the 3 V’s 🟢 Business & Ethics → SDLC — all phases from Planning to Maintenance → Project Management — Scope · Time · Cost triangle → CIA Triad — Confidentiality · Integrity · Availability → IT Regulations — GDPR · HIPAA · CFAA · DMCA ───────────────────────────── 🎯 WHO IS THIS FOR? ───────────────────────────── This is for WGU students studying for the D322 Introduction to IT & Information Systems OA. Whether you’re reviewing before your exam or doing a final pass the night before — this video has you covered! 🎓 ───────────────────────────── 🔔 DON'T FORGET! ───────────────────────────── ✅ LIKE if this helped you 🔔 SUBSCRIBE to GetToKnow 4u for more study videos 💬 COMMENT your score after the exam — I want to celebrate with you! 📤 SHARE with a classmate who’s also studying! ───────────────────────────── #D322 #WGU #OAExamPrep #StudyGuide #OSIModel #CIATriad #SDLC #SQLBasics #DIKW #ITRegulations #GDPR #HIPAA #CFAA #ExamReady #GetToKnow4u #WGUStudents #InformationTechnology #LearnIT #TechExplained #PassYourOA