IT Support Fundamentals: Advancing from Tier 1 to Tier 2

Transitioning from basic customer help desk tasks to Tier 2 technical support requires a deeper understanding of operating systems, network troubleshooting, and systematic problem resolution. This written course provides a structured roadmap to level up your technical diagnostic capabilities and handle complex technical issues with confidence. You will build practical skills in diagnosing hardware and software errors, managing identity and access systems, and troubleshooting network connectivity. You will also explore modern endpoint administration practices, ticketing escalation protocols, and foundational command-line diagnostics to resolve incidents efficiently. What you'll learn: - Understand core technical support terminology, escalation frameworks, and SLA management - Diagnose complex operating system issues across desktop and mobile environments - Troubleshoot network connectivity, DNS, DHCP, and IP configuration problems - Apply command-line tools in PowerShell and Bash for automated system checks and remediation - Manage access controls, multi-factor authentication, and basic endpoint security policies - Practice structured root-cause analysis and write clear technical documentation for incident escalations The course begins with foundational concepts and essential terminology before guiding you through real-world support scenarios, diagnostic workflows, and practical text-based exercises. This course is designed for Tier 1 support technicians, help desk specialists, and motivated beginners looking to build solid technical support foundations with no prior advanced experience required. Start reading today to expand your technical troubleshooting skills and take the next step in your IT support career.