CompTIA IT Fundamentals & Preparation

CompTIA IT Fundamentals & Preparation Training Course gives participants the networking foundation that modern IT roles assume. Learners work through network models, addressing, infrastructure devices, operations, and security across a structured three-week sequence. The program combines concept teaching with hands-on configuration, monitoring, and troubleshooting practice. As a result, participants gain the working knowledge that supports CompTIA-aligned study and day-to-day IT support. Furthermore, the course strengthens diagnostic reasoning, security awareness, and confidence with the technologies that connect systems.

• Explain the OSI and TCP/IP models and how data moves between layers.
• Configure IPv4 and IPv6 addressing, subnetting, NAT, and public versus private ranges.
• Identify network devices including routers, switches, firewalls, and access points.
• Describe cabling types, wireless standards, and physical connectivity requirements.
• Use monitoring tools including SNMP and Syslog for network visibility.
• Apply configuration management and backup practice to network equipment.
• Implement network security with firewalls, VPNs, IDS/IPS, and access control.
• Troubleshoot common connectivity, wireless, and performance problems systematically.
• Explain VLANs, cloud networking, and software-defined networking (SDN) concepts.
• Describe virtualization, cloud models, and emerging trends such as IoT and SD-WAN.

• Instructor-led sessions with structured concept demonstrations.
• Hands-on labs on addressing, subnetting, and device configuration.
• Group exercises on troubleshooting scenarios and root cause reasoning.
• Practice with monitoring tools, backup routines, and security configuration.
• Simulation of connectivity failures and wireless performance issues.
• Facilitator feedback and peer review on lab work and exam preparation.

• IT support technicians and help desk staff.
• Network administrators beginning their technical path.
• Professionals preparing for CompTIA-aligned certification study.
• Systems administrators expanding into networking duties.
• Technical staff supporting small and medium networks.
• Career changers entering IT infrastructure roles.

Week 1: Networking Concepts, Addressing, and Infrastructure

• The OSI model: seven layers and their functions.
• The TCP/IP model and how it maps to OSI.
• Encapsulation and how data travels across a network.
• Common ports and protocols including HTTP, HTTPS, DNS, DHCP, and SMTP.
• Network types: LAN, WAN, and MAN characteristics.
• Network devices: routers, switches, hubs, and firewalls.
• Access points, wireless controllers, and network topologies.
• Cabling types: twisted pair, fibre, and coaxial.
• Wireless standards including Wi-Fi generations and frequency bands.
• IPv4 addressing, classes, and public versus private ranges.
• Subnetting fundamentals and subnet mask calculation.
• NAT, IPv6 addressing, and transition considerations.
• Lab: planning an IPv4 addressing scheme for a small network.

Week 2: Network Operations, Security, and Access Control

• Monitoring with SNMP and log collection with Syslog.
• Performance baselines and alerting thresholds.
• Configuration management and change documentation.
• Backup and restore practice for network device configurations.
• Firmware updates and device lifecycle management.
• Documentation standards, diagrams, and asset registers.
• Firewalls: packet filtering, stateful inspection, and next-generation features.
• Virtual private networks (VPNs) and secure remote access.
• Intrusion detection and prevention systems (IDS/IPS).
• Wireless security: WPA2 and WPA3, authentication, and rogue access points.
• Access control models, authentication, and least privilege.
• Network segmentation with VLANs and DMZs.
• Lab: hardening a wireless network configuration and setting up SNMP monitoring.

Week 3: Troubleshooting, Cloud, Virtualization, and Emerging Trends

• Structured troubleshooting methodology and root cause reasoning.
• Common connectivity problems and their typical causes.
• Wireless interference, coverage, and performance issues.
• Network performance diagnosis with ping, traceroute, and packet capture basics.
• Virtualization concepts and virtual network design.
• Cloud service models: IaaS, PaaS, and SaaS.
• Cloud networking, VPN integration, and hybrid connectivity.
• Software-defined networking (SDN) and network programmability.
• Emerging trends: IoT connectivity, SD-WAN, and network automation.
• Network management tools and centralised administration.
• Exam preparation strategy and practice questions.
• Capstone: presenting a troubleshooting and improvement plan.

By successfully completing CompTIA IT Fundamentals & Preparation Training, participants will gain a practical command of networking concepts, addressing, infrastructure, operations, and security. They will acquire skills in subnetting, device configuration, monitoring, troubleshooting, and access control that support CompTIA-aligned study and real IT work. Gentex Training Center designs the program to help participants build a solid networking foundation and prepare confidently for further certification.