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  • Google Learning Program ๐Ÿ“š
  • Google IT Support Professional Certificate
    • Course 1 Welcome to the First Course in the Series! ๐ŸŽ“๐Ÿ–ฅ๏ธ
      • Welcome to Technical Support Fundamentals!
        • 1.Introduction to IT Support
          • Technical Support Fundamentals
          • What Does an IT Support Specialist Do?
        • 2.History of Computing
          • The Journey of Computers
          • The Path to Modern Computers ๐Ÿ’ฅ
          • Pioneers in Computing and IT ๐Ÿงฎ
        • 3.Digital Logic
          • Computer Language
          • Character Encoding
          • Binary
          • Logic Gates
          • Binary and Decimal Systems in Computing
        • 4.Computer Architecture Layer
          • Abstraction in Computing
          • Layers of a Computer System
          • Nontraditional Backgrounds in IT
      • Inside a Computer
        • 1.The Modern Computer
          • The Fascinating Journey of Computers
          • Inside the Computer: Exploring Hardware
          • Introduction to Building Computers ๐Ÿ–ฅ๏ธ
          • Supplemental Reading for CPUs
          • Changes in Diversity with Regards to IT Support Specialists ๐Ÿ‘ฅ๐Ÿ’ป๐ŸŒ
        • 2.Components
          • CPU ๐Ÿง 
          • Computer Peripherals and Connectors
          • Connector Types
          • Projectors
          • The Significance of RAM in Computing ๐Ÿ’พ๐Ÿง ๐Ÿ’ก
          • The Role of Motherboards in Computer Systems ๐Ÿ–ฅ๏ธ๐Ÿ”Œ
          • Physical Storage: Hard Drives
          • Data Storage
          • Introduction
          • Power Supplies
          • Mobile Devices
          • Mobile Device Power and Charging
        • 3.Starting It Up
          • Computer Components and Device Communication ๐Ÿ’ป๐Ÿ”Œ๐Ÿ“ก
          • The Importance of Technology Skills
          • Building Your Own Computer
          • Repairing a Mobile Device ๐Ÿ“ฑ๐Ÿ”ง
          • Mobile Display Types
        • 4.Hardware Graded Assessment
          • Feedback on IT Program
      • Operating Systems
        • 1.What is an Operating System
          • Welcome Back to OS! ๐Ÿ‘‹
          • Boot Methods Best Practices
          • Mobile Device Operating Systems
          • Exploring Career Opportunities in IT
          • Introduction to Operating Systems
          • Understanding File Management in Operating Systems
          • Process Management in Operating Systems
          • Memory Management and Virtual Memory
          • Input and Output Management
          • Userspace and Interacting with the Operating System
          • Understanding Logs: Your Computer's Diary
          • Booting Process: Starting Your Operating System
        • 2.Installing an Operating System
          • Selecting and Installing an Operating System
          • Virtual Machines: An Introduction
          • Installing Windows 10 Operating System
          • Windows 10 and 11 Feature Matrix
          • Linux Installation Guide
          • ChromeOS: A Secure and Simple Operating System for Web Browsing
          • Apple's Mac OS: A User-Friendly Operating System
          • Overcoming Obstacles and Embracing Opportunities in IT
      • Networking
        • 1.What is Networking
          • Introduction to Networking
          • The Internet: Connecting Computers and Accessing Information
          • The Internet: Connecting Computers and Accessing Information
          • Understanding Network Protocols and TCP/IP
          • Lots of different ways to use the internet ๐ŸŒ
          • Journey in IT ๐ŸŽต
        • 2.Limitations of the Internet
          • The Internet: Its Creation and Evolution ๐ŸŒ
          • IP Addresses and Network Address Translation (NAT)
          • Skills from Previous Jobs and Career Transitions
        • 3.Impact of the Internet
          • The Impact of the Internet
          • The Internet of Things (IoT) and the Future of Computing
          • Android Security: Protecting Over Two Billion Devices
          • The Impact of the Internet: Anonymity, Privacy, and Security
          • The Thrilling World of Information Security at Google
      • Computer Software
        • 1.Introduction to Software
          • Introduction to Computer Software
          • Understanding Different Types of Software
          • Common Scripting Solutions
          • Software Copyright and Types
          • Programming Languages and Hardware Abstraction
          • Evolution of Programming Languages
          • My Journey in Information Technology
        • 2.Interacting with Software
          • Understanding Software and Software Management
          • Software Management and Automation
      • Troubleshooting, Customer Support, and Documentation
        • 1.Troubleshooting Best Practices
          • The User Layer: Troubleshooting, Communication, and Impact
          • Effective Troubleshooting: Asking the Right Questions
          • Isolating the Problem: Narrowing Down the Scope
          • Follow the Cookie Crumbs: Tracing the Problem
          • Fixing the Issue: Start with the Quickest Step First
          • Avoiding Common Pitfalls in Troubleshooting
          • Attributes for Success in IT Support
        • 2.Customer Service
          • Intro to Soft Skills ๐Ÿ˜Š๐Ÿ’ผ๐Ÿ”ง๐Ÿ“š
          • Anatomy of an Interaction ๐Ÿ’ฌ
          • Understanding the Science behind Difficult Situations ๐Ÿง ๐Ÿ’ก
          • Understanding Frustrations in User Support Interactions ๐Ÿง ๐Ÿ’ก
        • 3.Documentation
          • Why Documentation is Important
          • Examples of Good and Not So Good Documentation ๐Ÿ“
          • Writing Documentation in Ticketing or Bug Systems
        • 4.Getting Through a Technical Interview
          • Your Opportunity Introduction
          • Resume and Online Professional Presence
          • Crafting Your Resume โœ๏ธ
          • Interview Preparation Tips
          • Creating Your Elevator Pitch
          • When You're Interviewing
          • Being Your Best Self for the Interview
          • Interview Transcript
    • Course 2 The Bits and Bytes of Computer Networking by Google
      • Networking - IT Support Professional Certificate
        • 1.Introduction to Computer Networking
          • Course: The Bits and Bytes of Computer Networking
        • 2.The TCP IP Five Layer Network Model
          • Understanding Networking Layers
        • 3.The Basics of Networking Devices
          • Understanding Networking Cables and Devices ๐Ÿ“ถ๐Ÿ’ป๐Ÿ”Œ
          • Hubs, Switches, and Routers: Connecting Networks ๐ŸŒ๐Ÿ”—๐ŸŒ
          • Servers, Clients, and Network Communication ๐Ÿ–ฅ๏ธ๐Ÿ’ป๐Ÿ“ก
        • 4.The Physical Layer
          • The Physical Layer: Moving Ones and Zeros ๐ŸŒ๐Ÿ’ก๐Ÿ”Œ
          • Twisted Pair Cables: Enabling Duplex Communication ๐ŸŒ๐Ÿ”—๐Ÿ”€
          • Ethernet Over Twisted Pair Technologies ๐ŸŒ๐Ÿ”—๐Ÿ”€
          • Twisted Pair Ethernet: Crossover Cables ๐ŸŒ
          • The Physical Layer and Network Endpoints ๐ŸŒ
          • Cabling Tools ๐Ÿ› ๏ธ
        • 5.The Data Link Layer
          • Wireless and Cellular Internet ๐Ÿ“ก
          • Unicast, Multicast, and Broadcast in Ethernet ๐ŸŒ
          • Dissecting an Ethernet Frame ๐Ÿ•ธ๏ธ
          • Pursuing a Career in IT ๐Ÿ–ฅ๏ธ
      • Exploring the Network Layer ๐ŸŒ
        • 1.Introduction
          • Exploring Network Communication ๐ŸŒ
        • 2.The Network Layer
          • Introducing the Network Layer and IP Addressing ๐ŸŒ
          • Understanding IP Addresses and Allocation ๐ŸŒ
          • IP Datagram: Structure and Fields
          • IP Addresses and Address Classes
          • Address Resolution Protocol (ARP)
        • 3.Subnetting
          • Subnetting
          • Subnet Masks
          • Binary Numbers and Decimal Numbers
          • Address Classes and CIDR Notation
          • Overcoming Challenges and Seeking Support
        • 4.Routing
          • Routing Basics
          • Routing Tables
          • Routing Protocols
          • Exterior Gateway Protocols: Connecting Autonomous Systems
          • A Brief History of Non-Routable Address Space
          • A Tale of Two Line Endings: A Support Engineer's Odyssey
      • Transport and Application Layers
        • 1.Transport and Application Layers
          • Introduction to Transport and Application Layers
        • 2.The Transport Layer
          • The Transport Layer: Multiplexing, Demultiplexing, and Ports
          • Dissecting a TCP Segment
          • TCP Control Flags: Establishing and Closing Connections
          • Understanding TCP Socket States
          • Understanding Connection-Oriented Protocols and Connectionless Protocols
          • Supplemental Reading for System Ports versus Ephemeral Ports
          • Network Firewalls: A Critical Component of Network Security
        • 3.The Application Layer
          • The Application Layer: Sending and Receiving Data
          • Understanding Network Layer Models: OSI Model
          • Exercise: Understanding Network Communication
      • Course Module Networking Services
        • 1.Introduction to Network Services
          • Introduction to Computer Networking Services
        • 2.Name Resolution
          • Introduction to DNS (Domain Name System)
          • The Many Steps of Name Resolution
          • DNS and UDP: A Comparison
          • Passion and Drive in IT ๐Ÿ’ก
        • 3.Name Resolution in Practice
          • DNS Resource Record Types
          • Domain Name Structure
          • Understanding Authoritative Name Servers and DNS Zones
        • 4.Dynamic Host Configuration Protocol
          • Managing Hosts on a Network with DHCP
          • DHCP Protocol ๐ŸŒ
          • IPv4 Address Exhaustion
        • 5.VPNs and Proxies
          • Virtual Private Networks (VPNs)
          • Proxy Services: Introduction and Types
      • Internet Connectivity and Networking
        • 1.Connecting to the Internet
          • The Internet and Connectivity Technologies
        • 2.POTS and Dial up
          • Evolution of Computer Networks and Dial-up Connectivity
        • 3.Broadband Connections
          • The Significance of Broadband Internet
          • T-carrier Technologies: From Phone Calls to Data Transfers
          • DSL: Revolutionizing Internet Access
          • DSL: Revolutionizing Internet Access
          • Fiber Optic Technology: Revolutionizing Internet Connectivity
          • Broadband Protocols ๐ŸŒ๐Ÿ“ก
        • 4.WANs
          • Network Setup and WAN Technologies
          • Network Setup and WAN Technologies
          • Point-to-Point VPNs
        • 5.Wireless Networking
          • Introduction to Wireless Networking Technologies
          • Mobile Device Connectivity
          • Mobile Device Networks
          • Wi-Fi 6
          • Alphabet Soup: Wi-Fi Standards
          • IoT Data Transfer Protocols
          • Wireless Network Configurations
          • Understanding Wireless Network Channels
          • Wireless Network Security
          • Protocols & Encryption
          • Cellular Networking
      • The Future of Computer Networking ๐ŸŒ
        • 1.Introduction
          • Network Troubleshooting ๐Ÿ› ๏ธ
        • 2.Verifying Connectivity
          • Network Troubleshooting ๐Ÿ› ๏ธ
          • Traceroute: Tracing the Path to Network Connectivity ๐Ÿ›ค๏ธ
          • Connectivity Testing Beyond the Network Layer ๐ŸŒ
        • 3.Digging into DNS
          • Mastering Name Resolution with nslookup ๐Ÿ”
          • Understanding the Role of DNS in Network Connectivity ๐ŸŒ
          • The Domain Name System: A Hierarchical Global Network ๐ŸŒ
          • Before DNS: The Legacy of Host Files ๐Ÿ—‚๏ธ
        • 4.The Cloud
          • Exploring the World of Cloud Computing ๐ŸŒฅ๏ธ
          • Cloud Computing: Beyond Virtual Machines
          • Cloud Storage: Secure, Accessible, and Available
        • 5.IPv6
          • The IPv4 Address Exhaustion Problem
          • IPv6 Header Improvements ๐Ÿš€
          • The Transition to IPv6 ๐ŸŒ๐Ÿ”
          • IPv6 and IPv4 Harmony ๐ŸŒ๐Ÿ”—
          • Technical Interview Scenario: Troubleshooting Network Issues
    • Course 3 Operating Systems and You: Becoming a Power User ๐Ÿ–ฅ๏ธ
      • Learning Objectives
        • 1.Operating Systems and Becoming a Power User
          • Navigating the Operating Systems ๐Ÿ’ป
        • 2.Basic Commands
          • Navigating the Windows and Linux OSs
          • Copying Files and Directories in PowerShell
          • Renaming and Moving Files in Bash ๐Ÿ”„
          • Deleting Files and Directories
          • Navigating File System in Windows ๐Ÿ—‚๏ธ ๐Ÿ—‚๏ธ
          • Windows Confidential: Just What Is 'Size on Disk'? ๐Ÿ–ฅ๏ธ
          • File Systems
          • Navigating Directories ๐Ÿ“
          • Navigating the Windows CLI ๐Ÿ’ป
          • Navigating the File System in Bash ๐Ÿง
          • Creating Directories
          • Efficient Directory Management in Bash
        • 3.File and Text Manipulation
          • Viewing and Editing Files
          • Editing Files
      • User and Permissions
        • 1.Users and Groups
          • Managing Users and Permissions
          • Viewing User Group Information
          • Linux User Management ๐Ÿง
          • 4.Passwords
          • Window Managing User Accounts
          • User Accounts in Mobile Operating Systems ๐Ÿ“ฑ๐Ÿ’ป
          • Ben Fried: Google's Chief Information Officer ๐Ÿง‘โ€๐Ÿ’ป๐Ÿข
        • 2.Permissions
          • File Permissions ๐Ÿ’ป
          • Changing Permissions
          • Linux Special Permissions ๐Ÿง
      • Package and Software Management ๐Ÿ–ฅ๏ธ
        • 1.Software Distribution
          • Course Progress Update: Halfway Through! ๐ŸŽ‰
          • Understanding Package Dependencies on Windows ๐Ÿ–ฅ๏ธ
          • Understanding Package Dependencies in Linux ๐Ÿ“ฆ
          • Understanding Software Packaging & Installation ๐Ÿš€
          • Understanding Windows Software Packages ๐Ÿš€
          • Linux Package Management: Debian Packages ๐Ÿ› ๏ธ
          • Mobile Operating Systems & App Management ๐Ÿ› ๏ธ
          • Mobile App Distribution: iOS & Android ๐Ÿ› ๏ธ
          • Mobile App Updates Best Practices for IT Support ๐Ÿ“ฑ
          • Mobile Device Storage Management Best Practices ๐Ÿ“ฑ
          • Understanding Archives
        • 2.Package Managers
          • Windows Package Management with Chocolatey ๐Ÿ–ฅ๏ธ
        • 3.Whats happening in the background
          • Windows Software Installation: Behind the Scenes ๐Ÿ› ๏ธ
        • 4.Device Software Management
          • Windows Devices and Drivers: An Overview ๐Ÿ› ๏ธ
          • Linux Devices and Drivers: Detailed Overview ๐Ÿ› ๏ธ
          • Windows Operating System Updates ๐Ÿ–ฅ๏ธ๐Ÿ”„
          • Linux Operating System Updates ๐Ÿง
      • Filesystems Overview: Windows & Linux ๐Ÿ–ฅ๏ธ๐Ÿง
        • 1.Filesystem Types
          • Module Introduction: Disk Management Essentials ๐Ÿ› ๏ธ๐Ÿ’ป
          • Understanding File Management in Windows ๐Ÿ“‚๐Ÿ’ป
          • Monitoring and Managing Disk Usage in Windows ๐Ÿ–ฅ๏ธ
          • Windows Filesystem Repair ๐Ÿ› ๏ธ
          • Linux Filesystem Repair: An Overview ๐Ÿง๐Ÿ”ง
          • Review of Filesystems: A Refresher ๐ŸŒ๐Ÿ’พ
          • Disk Partitioning and File System Essentials ๐Ÿ’ฝ๐Ÿ› ๏ธ
          • Windows Disk Partitioning and Formatting a Filesystem ๐Ÿ’ป๐Ÿ’พ
          • Windows: Mounting and Unmounting a Filesystem ๐Ÿ”Œ๐Ÿ’พ
          • Linux: Disk Partitioning and Formatting a Filesystem ๐Ÿง๐Ÿ’ป
          • Linux Mounting and Unmounting a Filesystem ๐Ÿง๐Ÿ“‚
          • Understanding Swap Space and Virtual Memory in Windows ๐Ÿ’ป
          • Understanding Linux Swap Space ๐Ÿ–ฅ๏ธ๐Ÿ’พ
      • Process Management ๐Ÿ–ฅ๏ธ๐Ÿ”ง
        • 1.Life of a Process
          • Introduction to Process Management ๐Ÿ–ฅ๏ธ๐Ÿ”
          • Programs vs. Processes Revisited ๐Ÿ–ฅ๏ธ๐Ÿ”„
          • Windows Process Creation and Termination ๐Ÿ–ฅ๏ธ๐Ÿ”„
        • 2.Managing Processes
          • Windows Reading Process Information ๐Ÿ–ฅ๏ธ๐Ÿ”
          • Windows Signals ๐Ÿšฆ๐Ÿ””
          • Windows Managing Processes ๐Ÿ› ๏ธ๐Ÿ’ป
          • Mobile App Management ๐Ÿ“ฑ๐Ÿ”ง
        • 3.Process Utilization
          • Windows Resource Monitoring
          • Resource Monitoring in Linux
      • Final Module Overview: IT Support Essentials
        • 1.Remote Access
          • Final Module Introduction: IT Support Essentials
          • Remote Connections on Windows
          • Remote Connections in Windows
          • Remote Connection: File Transfer on Linux
          • Remote Connection: File Transfer on Windows
        • 2.Virtualization
          • Virtual Machines
          • Supplemental reading for Virtual Machines
        • 3.Logging
          • System Monitoring
          • The Windows Event Viewer
          • Linux Logs
          • Working with Logs
        • 4.Operating System Deployment
          • Knowledge Summary: Imaging Software ๐Ÿ–ฅ๏ธ๐Ÿ”ง
          • Knowledge Summary: Operating Systems Deployment Methods ๐Ÿ–ฅ๏ธ๐Ÿš€
          • Knowledge Summary: OS Deployment Methods ๐Ÿ–ฅ๏ธ๐Ÿ”„
          • Knowledge Summary: Mobile Device Resetting and Imaging ๐Ÿ“ฑ๐Ÿ”„
          • Knowledge Summary: Windows Troubleshooting ๐Ÿ–ฅ๏ธ๐Ÿ”
          • Knowledge Summary: Windows Troubleshooting Tools ๐Ÿ› ๏ธ๐Ÿ”
          • Troubleshooting a Full Hard Drive in Windows ๐Ÿ–ฅ๏ธ๐Ÿ’พ
          • Interview Scenario Troubleshooting Application Issues
    • Course 4 System Administration and IT Infrastructure Services ๐ŸŒ
      • System Administration Course Overview ๐Ÿ“š
        • 1.What is System Administration
          • Understanding IT Infrastructure and the Role of System Administrators ๐ŸŒ
          • Understanding Servers in IT Infrastructure ๐ŸŒ
          • Understanding Cloud Computing โ˜๏ธ
          • Understanding Cloud Computing โ˜๏ธ
        • 2.Systems Administration Tasks
          • Organizational Policies ๐Ÿ“‹
          • IT Infrastructure Services ๐Ÿ–ฅ๏ธ
          • User and Hardware Provisioning ๐Ÿ–ฅ๏ธ๐Ÿ‘ฅ
          • Routine Maintenance ๐Ÿ› ๏ธ๐Ÿ”„
          • 5.Vendors
          • Troubleshooting and Managing Issues ๐Ÿ› ๏ธ๐Ÿ”
          • Disaster Preparedness and Data Backup ๐ŸŒช๏ธ๐Ÿ’พ
        • 3.Applying Changes
          • Responsible Use of Administrative Rights โš™๏ธ๐Ÿ”’
          • IT Change Management ๐Ÿ› ๏ธ๐Ÿ“ˆ
          • Recording Your Actions ๐Ÿ–ฅ๏ธ๐ŸŽฅ
          • Never Test in Production ๐Ÿšซ๐Ÿ”ง
          • Assessing Risk in Change Management โš ๏ธ๐Ÿ”
          • Fixing Things the Right Way ๐Ÿ› ๏ธ๐Ÿ”
      • Network and Infrastructure Services: Module Overview ๐ŸŒ๐Ÿ”ง
        • 1.Intro to IT Infrastructure Services
          • IT Infrastructure Services Overview ๐Ÿ–ฅ๏ธ๐ŸŒ
          • The Role of IT Infrastructure Services in SysAdmin ๐Ÿ› ๏ธ๐ŸŒ
          • Types of IT Infrastructure Services ๐ŸŒ๐Ÿ’ป
        • 2.Physical Infrastructure Services
          • Server Operating Systems ๐Ÿ–ฅ๏ธ๐Ÿ”ง
          • Virtualization in IT Infrastructure ๐ŸŒ๐Ÿ’ป
          • Remote Access Revisited ๐ŸŒ๐Ÿ’ป
        • 3.Network Services
          • FTP, SFTP, and TFTP ๐Ÿ“๐Ÿ”„
          • Network Time Protocol (NTP) โฐ๐ŸŒ
          • Network Support Services Revisited ๐ŸŒ๐Ÿ”ง
          • Understanding DNS
          • DHCP (Dynamic Host Configuration Protocol) ๐ŸŒ๐Ÿ”ง
        • 4.Troubleshooting Network Services
          • Troubleshooting DNS Issues: Unable to Resolve a Hostname or Domain Name ๐ŸŒ๐Ÿ”
        • 5.Managing System Services
          • Managing and Configuring IT Services ๐Ÿ–ฅ๏ธ๐Ÿ”ง
          • Managing Services in Linux ๐Ÿ–ฅ๏ธ๐Ÿ”ง
          • Managing Services in Windows ๐Ÿ–ฅ๏ธ๐Ÿ”„
          • Configuring Services in Linux ๐Ÿ’ป
        • 6.Configuring Network Services
          • Configuring DNS with Dnsmasq ๐ŸŒ๐Ÿ› ๏ธ
          • Configuring DHCP with Dnsmasq ๐ŸŒ
      • Software and Platform Services ๐Ÿ“Š๐Ÿ’ป
        • 1.Software Services
          • Understanding Software and Platform Services in IT Infrastructure ๐Ÿ–ฅ๏ธ๐Ÿ’ก
          • Overview of Communication Services in IT Infrastructure ๐Ÿ’ฌ๐Ÿ”ง
          • Overview of Email Protocols and Services ๐Ÿ“ง๐Ÿ”ง
          • Spam Management and Mitigation ๐Ÿ›ก๏ธ๐Ÿ“ง
          • User Productivity Services: Agreements and Licenses ๐Ÿ“‹๐Ÿ’ผ
          • Web Server Security Protocols ๐Ÿ”๐ŸŒ
          • Managing Self-Doubt: Insights from Heather ๐ŸŒŸ
        • 2.File Services
          • File Services: Enhancing Organizational Productivity ๐Ÿ“
          • Network File Storage: Efficient Solutions for File Sharing ๐Ÿ“‚
          • Mobile Synchronization Protecting Your Valuable Data ๐Ÿ“ฑ๐Ÿ”’
        • 3.Print Services
          • Configuring Print Services ๐Ÿ“„
        • 4.Platform Services
          • Web Servers Revisited ๐ŸŒ๐Ÿ’ป
          • Load Balancers: Overview and Key Concepts ๐ŸŒโš™๏ธ
          • Understanding Database Servers ๐Ÿ“Š๐Ÿ’พ
        • 5.Troubleshooting Platform Services
          • Diagnosing Website Issues with HTTP Status Codes ๐ŸŒ๐Ÿ”
        • 6.Managing Cloud Resources
          • Cloud Concepts ๐ŸŒฅ๏ธ๐Ÿ’ก
          • Typical Cloud Infrastructure Setups โ˜๏ธ๐Ÿ”ง
          • Common Cloud Models โ˜๏ธ๐Ÿ”
          • When and How to Choose Cloud โ˜๏ธ๐Ÿค”
          • Managing Cloud Resources โ˜๏ธ๐Ÿ”ง
      • Data Recovery and Backups ๐Ÿ“๐Ÿ”„
        • 1.Planning for Data Recovery
          • Introduction to Data Recovery ๐Ÿ“Š๐Ÿ”ง
          • What is Data Recovery? ๐Ÿ“‚๐Ÿ”
          • Backing Up Your Data ๐Ÿ”’๐Ÿ’พ
          • Backup Solutions ๐Ÿ›ก๏ธ๐Ÿ’พ
          • Job Transition: The Value of Soft Skills in IT ๐ŸŒŸ๐Ÿ’ผ
          • Testing Backups: Ensuring Effective Data Recovery ๐Ÿ”„๐Ÿ› ๏ธ
          • Types of Backup Choosing the Right Approach for Your Data ๐Ÿ“‚๐Ÿ”„
          • User Backups Ensuring Data Safety for Individual Devices ๐Ÿ’ปโ˜๏ธ
        • 2.Disaster Recovery Plans
          • Disaster Recovery Plan Essential Components and Strategies ๐ŸŒช๏ธ๐Ÿ› ๏ธ
          • Designing an Effective Disaster Recovery Plan ๐Ÿ›ก๏ธ
        • 3.Post Mortems
          • Understanding Post-Mortems ๐Ÿ“๐Ÿ”
          • Writing a PostMortem Report ๐Ÿ“๐Ÿ”
      • Final Systems Administration Consultation Project
        • Process Review for Network Funtime Company ๐Ÿ–ฅ๏ธ๐Ÿ”ง
        • Process Review for W.D. Widgets ๐Ÿ“ˆ๐Ÿ› ๏ธ
        • Process Review for Dewgood ๐ŸŒŸ๐Ÿ’ป
    • Course 5 IT Security: Defense Against the Digital Dark Arts ๐Ÿ”๐Ÿ’ป
      • IT Security Course: Module 1 Overview ๐Ÿ”
        • 1.Introduction to IT Security
          • Introduction to IT Security Course ๐Ÿ”
        • 2.Malicious Software
          • The CIA Triad in Information Security ๐Ÿ”
          • Essential Security Terms in IT Security ๐Ÿ›ก๏ธ
          • Malicious Software (Malware) Overview ๐Ÿฆ 
          • Antimalware Protection and Malware Removal ๐Ÿ›ก๏ธ๐Ÿ’ป
          • Malware Continued: Advanced Threats and Techniques ๐Ÿšจ๐Ÿ–ฅ๏ธ
        • 3.Network Attacks
          • Network Attacks: Overview of Common Threats ๐ŸŒ๐Ÿ”’
          • Denial-of-Service Attacks: An Overview ๐ŸŒ๐Ÿšซ
          • Overview of High-Profile Distributed Denial of Service (DDoS) Attacks ๐ŸŒ๐Ÿšซ
        • 4.Other Attacks
          • Overview of ClientSide Attacks ๐Ÿ–ฅ๏ธ๐Ÿ’ฅ
          • Overview of Password Attacks ๐Ÿ”๐Ÿšจ
          • Overview of Deceptive Attacks ๐Ÿ•ต๏ธโ€โ™‚๏ธ๐Ÿ’ป
          • Physical Security Measures ๐Ÿ›ก๏ธ๐Ÿ”
      • Cryptology Overview ๐Ÿ”
        • 1.Symmetric Encryption
          • Cryptography and Its Principles ๐Ÿ”
          • Symmetric Cryptography ๐Ÿ”
          • Symmetric Encryption Algorithms ๐Ÿ”
          • The Role of a Security Engineer ๐Ÿ”
        • 2.Public Key or Asymmetric Encryption
          • Asymmetric Cryptography ๐Ÿ”๐Ÿ”‘
          • Asymmetric vs Symmetric Cryptography ๐Ÿ”‘๐Ÿ”’
          • Asymmetric Encryption Algorithms ๐Ÿ”
        • 3.Hashing
          • Hashing ๐Ÿ”
          • Hashing Algorithms ๐Ÿ› ๏ธ
        • 4.Cryptography Applications
          • Public Key Infrastructure (PKI) ๐ŸŒ๐Ÿ”’
          • Certificates and Trust Models ๐Ÿ”‘๐Ÿ”
          • Cryptography in Action ๐Ÿ”’๐Ÿ’ป
          • Securing Network Traffic ๐Ÿ”๐ŸŒ
          • Cryptographic Hardware ๐Ÿ›ก๏ธ๐Ÿ”‘
      • The Three A's in Cybersecurity ๐Ÿ”
        • 1.Authentication
          • Best Practices for Authentication ๐Ÿ”
          • Multifactor Authentication (MFA) ๐Ÿ”‘
          • Physical Privacy and Security Components ๐Ÿ”’
          • 4.Certificates Part Two
          • RADIUS Remote Authentication DialIn User Service ๐ŸŒ
          • Kerberos Authentication Protocol ๐Ÿ›ก๏ธ
          • TACACS+ (Terminal Access Controller Access-Control System Plus) ๐Ÿ”
          • Single Sign-On (SSO) ๐Ÿ”‘
        • 2.Authorization
          • Authorization and Access Control Methods ๐Ÿ”
          • Mobile Security Methods ๐Ÿ“ฑ๐Ÿ”’
          • Access Control List (ACL) ๐Ÿ“œ๐Ÿ”
        • 3.Accounting
          • Tracking Usage and Access ๐Ÿ“Š๐Ÿ”
          • Important Skills in Security ๐Ÿ”๐Ÿ’ก
      • Secure Network Architecture ๐Ÿ›ก๏ธ๐ŸŒ
        • 1.Secure Network Architecture
          • Secure Network Architecture ๐Ÿ›ก๏ธ๐ŸŒ
          • Network Hardware Hardening ๐ŸŒ๐Ÿ› ๏ธ
          • IEEE 802.1X: Port-Based Network Access Control ๐ŸŒ๐Ÿ”’
          • Network Software Hardening Techniques ๐Ÿ”’๐Ÿ’ป
        • 2.Wireless Security
          • WEP Encryption and Why It Shouldn't Be Used Anymore ๐Ÿšซ๐Ÿ”‘
          • Summary of WPA and WPS Security in Wireless Networks
          • WPA2: Advanced Security Protocol for Wi-Fi Networks
          • Wireless Hardening: Enhancing Wi-Fi Security
          • The Impact of Social Engineering
        • 3.Network Monitoring
          • Sniffing the Network
          • Wireshark and Tcpdump
          • Intrusion Detection and Prevention Systems (IDS/IPS)
          • Unified Threat Management (UTM) ๐Ÿ›ก๏ธ
          • Home Network Security ๐Ÿ ๐Ÿ”
      • Module 5 In-Depth Security Defense ๐Ÿ›ก๏ธ๐Ÿ”’
        • 1.System Hardening
          • Introduction to Defense in Depth ๐Ÿ›ก๏ธ๐Ÿ”„
          • Disabling Unnecessary Components ๐Ÿ› ๏ธ๐Ÿ”’
          • Host-Based Firewalls ๐Ÿ›ก๏ธ๐Ÿ’ป
          • Logging and Auditing ๐Ÿ”๐Ÿ“Š
          • Windows Defender Guide ๐Ÿ›ก๏ธ๐Ÿ–ฅ๏ธ
          • Antimalware Protection Guide ๐Ÿ›ก๏ธ
          • Disk Encryption Guide ๐Ÿ”
          • Self-Learning The Key to Success in Technology ๐Ÿš€
        • 2.Application Hardening
          • Software Patch Management: Essential for Security** ๐Ÿ›ก๏ธ
          • Browser Hardening: Enhancing Your Online Security ๐Ÿ”’
          • Application Policies: Enhancing Security through Effective Management ๐Ÿ”
      • Congratulations on reaching the final module of the course! ๐ŸŽ‰ Hereโ€™s what youโ€™ll be focusing on:
        • 1.Risk in the Workplace
          • Security Goals and PCI DSS Overview ๐Ÿ”’
          • Measuring and Assessing Risk ๐Ÿ”
          • Privacy Policy ๐Ÿ“œ
          • Data Destruction ๐Ÿ”’
        • 2.Users
          • User Habits and Security ๐Ÿš€๐Ÿ”
          • ThirdParty Security ๐Ÿ›ก๏ธ๐Ÿ”
          • Security Training ๐Ÿ›ก๏ธ๐Ÿ“š
          • Qualities of an IT Candidate ๐ŸŒŸ๐Ÿ’ป
        • 3.Incident Handling
          • Incident Reporting and Analysis ๐Ÿšจ๐Ÿ”
          • Incident Response and Forensic Analysis ๐Ÿ”๐Ÿ›ก๏ธ
          • Incident Response and Recovery ๐Ÿš€๐Ÿ”’
          • Mobile Security and Privacy ๐Ÿ“ฑ๐Ÿ”
          • Bring Your Own Device (BYOD) ๐Ÿ“ฑ๐Ÿข
          • Tips for IT Support Interviews ๐Ÿ’ผ๐Ÿ–ฅ๏ธ
          • Interview Role Play: Network Security Scenario ๐ŸŽฅ๐Ÿ”’
          • Security Infrastructure Design Document
  • Google Project Manager Certification in Progress ๐Ÿง‘โ€โš•๏ธ
    • Course 1 Foundations of Project Management
      • Module 1 Embarking on a career in project management
      • Module 2 Becoming an effective project manager
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  • General-Purpose Mobile Devices
  • Specialized Mobile Devices
  • Key Insights

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  1. Google IT Support Professional Certificate
  2. Course 1 Welcome to the First Course in the Series! ๐ŸŽ“๐Ÿ–ฅ๏ธ
  3. Operating Systems
  4. 1.What is an Operating System

Mobile Device Operating Systems

Mobile devices come in various forms, ranging from general-purpose devices like tablets and smartphones to specialized devices like fitness monitors, e-readers, and smartwatches. Letโ€™s explore how mobile operating systems (OS) differ from the OSs they are based on.


General-Purpose Mobile Devices

๐Ÿ“ฑ Mobile Operating Systems General-purpose mobile devices typically run on mobile operating systems derived from other well-known operating systems:

  • Android: Derived from Linux.

  • iOS: Shares core components with macOS.

โšก๏ธ Power Optimization Since mobile devices rely on batteries that need frequent recharging or replacement, mobile operating systems are optimized to minimize power consumption. This optimization involves:

  • Removing unnecessary OS features.

  • Reducing background applications to conserve battery life.

๐Ÿ–๏ธ Unique Interactions Mobile devices support a wide range of user interactions that differ from traditional desktops or servers:

  • Motion (e.g., accelerometers, gyroscopes).

  • Touch (e.g., multi-touch gestures).

  • Voice (e.g., voice assistants).

These interactions require specialized device drivers and features within the mobile OS.


Specialized Mobile Devices

๐Ÿ”‹ Custom Operating Systems Specialized mobile devicesโ€”like fitness trackers, e-readers, and GPS devicesโ€”often use custom operating systems. These OSs are built specifically for the functions the device performs and are optimized to deliver those tasks efficiently.

๐Ÿ’ก Slimmed-Down Design These devices are designed to run on minimal hardware and conserve power. They often feature:

  • Specialized chips.

  • Peripheral hardware not compatible with general-purpose operating systems.

๐Ÿ“ฒ Limited Functionality Specialized devices prioritize specific tasks, so their operating systems are stripped of unnecessary features. This makes them more efficient but limits their functionality compared to general-purpose mobile devices.


Key Insights

  • Mobile operating systems focus on power efficiency and specialized interactions to meet the demands of mobile devices.

  • Specialized mobile devices use custom, streamlined OSs optimized for their specific purposes and limited functionality.

๐Ÿ“ฑ๐Ÿ”‹๐Ÿ”Œ

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