General Knowledge
What is the purpose of the presentation layer?
To translate data into other types of data.
what is the PDU
The PDU otherwise known as the (Protocol Data Unit) is a unit of information that is sent by a protocol at a certain OSI layer
Where does the presentation layer receive its information from?
Application layer.
What does AFP stand for?
Apple Filing Protocol
What are firewalls
monitors what comes in and out of the the computer
What is the presentation layer a part of in the TCP/IP model?
The application layer.
What is the type of PDU for the presentation layer
The PDU for the presentation layer is data
Where is the data that the presentation layer translates sent to?
The session layer.
What does XDR stand for?
External Data Representation
What are proxy servers
A gateway between you and the internet
What other function does the presentation layer perform besides translating data types?
It also compresses data.
Which layer TCP/IP does the PDU get sent to after its encapsulation
The PDU gets sent to the transportation layer after being encapsulated.
What type of information does the application layer send to the presentation layer
Raw data
What does the NDR protocol do?
It acts as a reference tool for the presentation layer.
Why use load balancers
they make response times more efficient
True or false: the presentation layer is the layer responsible for communicating information between computers.
False
What happens when the PDU gets encapsulated in the presentation layer.
The PDU which is Data gets compacted so it becomes faster and more efficient in its travel
What type of data does the presentation layer send to the session layer?
Encrypted data.
What is the purpose of the XDR protocol?
To translate data types into other data types to be sent through the network.
What does the hardware in the presentation layer do
receives the data from the application layer and translates it into a format that readable by other computers
What are the two other names given to the presentation layer?
The syntax layer and the translation layer.
Does the encapsulation add a header or footer to the PDU in the presentation layer
No it usually does not but in specific cases they can be added.
Why does the presentation layer modify the data sent to it from the application layer?
So the data can be transported through the network.
What is the process of converting a local data type to the XDR standard type called?
Encoding
What is the server used for with the presentation layer?
To make sure the presentation layer knows what data type to translate to.