OSI Model
OSI Model
APPLICATION
Applications Layer: deals with applications protocols or services common to applications protocols
PRESENTATION
Presentation Layer: agree on the form that data will be in
SESSION
Session Layer: sets up and manages coordinated connections between two or more programs
TRANSPORT
Transport Layer: takes end-to-end responsibility for messages
NETWORK
Network Layer: decides what is the next stop the messages must take to reach its destination, this includes translating names to addresses, and building and maintaining routing tables
DATA LINK
Link Layer: takes responsibility for the message reaching the next link correctly
PHYSICAL
Physical Layer: defines how bits are represented and what types of cable and connectors are used