COMMUNICATION NETWORKS
Basic Network Building Blocks
Internet Overview
Internet Protocols
What is the OSI model?
Physical Layer 
Fundamentals of Data and Signals
Data-link Layer
Data-link Control & Protocols
Error Detection & Correction
Data link control (DLC)
Media Access Control
MAC Addresses
Logical Link Control (LLC)
Functions of LLC and MAC sub-layers of Data Link Layer
IEEE 802.3 and Ethernet
Wireless LAN
What are wireless LANs?
Bluetooth
What is BLE?
What is Wi-Fi ?
Wi-Fi Working Principle
Types of WI-FI Technologies
What is 6LoWPAN
What is Zigbee Technology?
Network Layer Services
What is Packet Switching?
Network Switching
IPv4 - Reserved Addresses
Network Layer Protocols