Important Information
What is the Presentation Layer's main function?
It encrypts/formats data properly so it can be read by other layers.
Which layer(s) does the Presentation layer interact with?
All of them.
What is the difference between HTTP and HTTPS?
HTTP connects to a network with an insecure connection, while HTTPS encrypts your data to make secure.
Protocol Data Unit.
What layer is the Presentation layer at? (OSI model)
The 6th layer.
Gateways compress, decrypt, or encrypt data helping other layers read that data properly.
What is a protocol?
A standard set of rules for formatting and processing data.
What layers are above and below the Presentation layer? (OSI model)
Application and Session layer.
What are all the layers in the OSI model? (Does not have to be in order)
Application layer, Presentation layer, Session layer, Transport layer, Network layer, Data Link layer, and the Physical layer.
What does SSL stands for?
Secure Sockets Layer.
Name two different types of encapsulation that happens in the Presentation layer.
Data encryption/decryption, data translation, or data compression/decompression.
What layer uses packets as it's PDU?
The Network layer.
What type of data does the Data Link Layer use?
Frames.
Hypertext Transfer Protocol Secure.