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29 Cards in this Set

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  • Back
What is the OSI Mnemonic?
Please do not throw sausage pizza away
What is layer 1 of the OSI model?
Physical layer. (Wire, hubs)
What are some examples of the OSI Physical Layer?
Wire, hubs. (layer 1)
Wire and Hubs are examples of which OSI layer?
Physical Layer (layer 1)
What is layer 2 of the OSI Model?
Data link. (NICs, switches, bridges, WAPs)
What are some examples of the OSI Data Link layer?
NICs, switches, bridges, WAPs (layer 2)
NICs, switches, bridges, WAPs are examples of which OSI layer?
Data Link Layer (layer 2)
What is layer 3 of the OSI Model?
Network Layer (routers)
What is an example of the OSI network layer?
Routers (layer 3)
Routers are an example of which OSI layer?
Network layer (layer 3)
What is the 4th layer in the OSI model?
Transport layer (assemble and disassemble packets)
What does the Transport layer of the OSI model do?
Assembles and disassembles packets (layer4)
What OSI model layer assembles and disassembles packets?
Transport Layer (layer4)
What is the 5th layer in the OSI model?
Session Layer (syncs data communication between apps on separate devices. Handles error detection and notification to the peer layer on the other device)
What does the Session layer of the OSI model do?
Syncs data communication between apps on separate devices, and handles error detection and notification to the peer layer on the other device. (layer5)
Which OSI model layer syncs data communications between apps on separate devices and handles error detection and notification to the peer layer on the other device?
Session Layer (layer5)
What is the 6th layer in the OSI model?
Presentation Layer (data conversion)
What does the Presentation layer of the OSI model do?
Converts Data from the application layer into a format that can be sent over the network. (layer6)
Which OSI model layer converts Data from the application layer into a format that can be sent over the network?
Presentation Layer (Layer6)
What is the 7th layer in the OSI model?
Application Layer (API's that provide network access for end user programs)
What does the Application Layer of the OSI model do?
Provides network access API's to end user programs (layer 7)
Which OSI layer provides access API's to end user programs?
Application Layer (layer7)
Application layer (detailed)
Layer 7, provides access to the network for apps and user functions. It displays incoming info and prepares outgoing info for the network.
Presentation layer (detailed)
Converts the Data from the app layer into a format that can be sent over the network. It converts data from the session layer into info understood by the application layer. Handles encryption and compression.
Session layer (detailed)
Syncs data communication exchange between apps on separate devices. Handles error detection and notification to the peer layer on the other device.
Transport Layer (detailed)
Establishes/maintains/breaks communication between devices. Determines priority order of data. Performs packet error checking and verification. retransmits packets if needed.
Network Layer
Provides mechanisms for routing data across single or multiple network segments. Discovers destination systems and addressing.
Data Link Layer
Has 2 sublayers (LLC and MAC). Error detecion and handling for trasmitted signals. Defines hardware addressing.
Physical Layer
The structure of the network. Defines voltage/signal rates and connections as well as Topology.