Network and Cyber 011 Flashcards
What is the main cable in the bus topology
Its the backbone cable
What is the OSI(Open System Interchange and OSI seven layer model)
Framework that controls how data is shared between computing devices
What are the seven layers of the OSI
Physical
Data-Link
Network
Transport
Session
Presentation
Application
Physical layer
Handles the sending data over a cable
Data link layer
This layer detects if there is any layers and “farming” which is essentially wrapping the entire data packet in a “parent packet” which contains information like what kind of this the data is being sent over
Network layer
Decides what route is the best and fastest for the data to travel to by breaking it into small pieces then rearranging it on the receivers end
Transport layer
Determines which protocol to follow(main two are TCP and UDP)
Session layer
Creates the connection between the sender and the receiver by sharing encryption and decryption keys
Presentation Layer
Makes the payload of a packet in a way a machine would understand and responsible for encryption and compression
Application Layer
Changing the user input to machine understandable content