Network+ Exam Prep
Networking fundamentals the security field expects you to know.
Taught by Kiran Basnet · Security Engineer
What you'll learn
- Explain the OSI and TCP/IP models and map protocols to their layers
- Calculate subnets, CIDR ranges and usable host counts by hand
- Describe how switches, routers and common network devices move traffic
- Identify common ports and protocols and the security risks of each
- Apply a structured troubleshooting methodology to isolate network faults
- Manage exam-day timing and answer performance-based questions with confidence
About this course
This Network+ exam prep course is for beginners and aspiring security professionals who need the networking foundation that every IT and cybersecurity role assumes. It follows the current CompTIA Network+ objectives: networking concepts, implementation, operations, security and troubleshooting. You will learn the OSI and TCP/IP models, IP addressing and subnetting, switching and routing, common ports and protocols, wireless and cabling, and a structured troubleshooting methodology. Hands-on command-line exercises with ping, ipconfig and a subnet calculation walk-through make the ideas concrete, and the final lesson covers exam-day timing and performance-based questions. Network+ is the recommended stepping stone before Security+, so this course doubles as preparation for a security career. No prior networking experience is required. Independent study material, not affiliated with or endorsed by CompTIA.
Course content
7 lessons- 1Network+ Overview and How Networks WorkThe exam format, the five domains, and the big picture of how data crosses a network.Preview
- 2The OSI Model and TCP/IPThe seven OSI layers, the four-layer TCP/IP model, and how to map protocols to each.
- 3IP Addressing and SubnettingIPv4 and IPv6 addressing, CIDR notation, and how to calculate subnets by hand.
- 4Switching, Routing and Network DevicesHow switches and routers move traffic, plus VLANs, NAT and the devices you meet on the exam.
- 5Wireless, Cabling and Physical NetworksWi-Fi standards and security, cable types and connectors, and how the physical layer fails.
- 6Network Security and OperationsCommon threats, access control, and the operational tasks that keep a network healthy.
- 7Troubleshooting Methodology and Exam TechniqueCompTIA's troubleshooting steps, the command-line tools you must know, and exam-day tactics.