By understanding the course structure, exploring available resources wisely, and following a disciplined study plan, you can build a solid foundation in computer hardware and networking. Whether you aim to become a certified hardware and networking engineer, pursue CCNA certification, or specialize in network security or cloud networking, Jetking’s study materials provide the roadmap to achieving your career goals.
To understand data transmission, technicians must memorize and apply the 7 Layers of the OSI Model: Layer Number OSI Layer Name Function / Description Common Protocols / Devices Application User interface and network services HTTP, FTP, SMTP, DNS 6 Presentation Data formatting, encryption, and compression SSL, SSH, JPEG, ASCII 5 Establishing, maintaining, and terminating sessions NetBIOS, RPC 4 End-to-end connections, reliability, flow control TCP (Reliable), UDP (Fast) 3 Routing data packets; logical addressing IP (IPv4/IPv6), Routers, ICMP 2 Framing; physical addressing via MAC addresses Switches, Bridges, Ethernet 1 Transmission of raw bitstreams over physical media Cables, Hubs, Repeaters Module 5: Network Media, Cabling, and Topologies jetking notes of hardware and networking pdf full