OSI & Network Class Flashcards
What are the OSI Layers?
Application, Presentation, Session, Transport, Network, Data Link, Physical
What is Layer 1
Physical
What is Layer 2?
Data Link
What is Layer 3?
Network
What is Layer 4?
Transport
What is Layer 5?
Session
What is Layer 6?
Presentation
What is Layer 7?
Application
What does the Application Layer do?
Allows access to network resources
Which is the Application Layer?
7
Which is the Presentation Layer?
6
Which is the Session layer?
5
Which is the Transport Layer?
4
Which is Network Layer?
3
Which is the Data Link Layer?
2
Which is the Physical Layer?
1
What does the Physical Layer do?
Transmits bits over a medium. Provides mechanical specifications.
What does the Data Link Layer do?
Organizes Bits into Frames.
Provides hop-to-hop delivery
What does the Network Layer do?
Moves packets from source to destination.
Provides internetworking
What does the Transport Layer do?
Provides reliable process to process message delivery and error delivery
What does the Session Layer do?
Established, manages, and terminates sessions.
What does the Presentation Layer do?
Transforms data into the form that the application accepts. This layer formats and encrypts data to be sent across a network.
What does the Application Layer do?
Allows access to network resources
What Layer is Telnet?
Application
