This app will work as pocket notes for students those who learning Data Communication. From this app, you will able to learn: # Introduction to Data Communication # Network Models # Data and Signals # Wireless-signal.png # Digital Transmission # Analog Transmission # Bandwidth Utilization # Transmission Media # Error Detection and Correction # Introduction to Data Communication & Networking # Data flow (simplex, half-duplex, and full-duplex) # Types of connections # Categories of topology # Categories of Networks # Internet # Protocol # LAYERED TASKS # THE OSI MODEL # Seven layers of the OSI model # The interaction between layers in the OSI model # An exchange using the OSI model # Physical layer # Data Link # Network layer # Transport layer # Session layer # Presentation layer # TCP/IP PROTOCOL SUITE # ADDRESSING # Relationship of layers and addresses in TCP/IP # Physical addresses # IP addresses # Port addresses