Overview of Computer Networks: Definition and Objectives, Applications and Examples
Network Components and Architecture

Network Models: OSI Model: Layers and Functions, TCP/IP Model: Layers and Functions
Comparison between OSI and TCP/IP Models

Network Topologies: Physical vs. Logical Topologies, Common Topologies: Star, Ring, Bus,
Mesh, Hybrid, Advantages and Disadvantages of Each Topology

Data Transmission: Analog vs. Digital Signals, Transmission Modes: Simplex, Half-Duplex,
Full-Duplex, Bandwidth and Latency

Networking Devices: Routers, Switches, Hubs, Bridges, Gateways, Functions and
Configurations of Each Device.

Data Link Layer Fundamentals: Functions of the Data Link Layer, Framing, Error
Detection, and Error Correction, Flow Control Mechanisms.

Ethernet: Ethernet Standards and Frame Structure, MAC Addressing and ARP, Ethernet
Switching: Basic Concepts and Methods

Network Protocols: Introduction to TCP/IP Protocol Suite, IP Addressing: IPv4 and IPv6
Subnetting and CIDR Notation

Address Resolution Protocol (ARP): ARP Operation and Table, ARP Spoofing and Security
Considerations

Virtual LANs (VLANs): Concept of VLANs, VLAN Tagging and Configuration, Benefits
and Use Cases.