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30 Cards in this Set
- Front
- Back
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What is layer #1?
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Physical
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What is layer #2?
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Data Link
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What is layer #3?
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Network
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What is layer #4?
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Transport
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What is layer #5?
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Session
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What is layer #6?
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Presentation
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What is layer #7?
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Application
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What layer # is the Applicaion layer?
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7
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What layer # is the Presentation layer?
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6
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What layer # is the Session layer?
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5
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What layer # is the Transport layer?
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4
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What layer # is the Network layer?
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3
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What layer # is the Data Link layer?
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2
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What layer # is the Physical layer?
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1
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What layers is the Data Link layer sub-divided into?
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Media Access Control or MAC and Logical Link Control or LLC
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What IEEE standard defines the MAC sub-layer of the Data Link layer?
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IEEE 802.1
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What is the purpose of the MAC sub-layer of the Data Link layer?
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It is responsible for controlling access to network media and for moving the data packets from one network interface to another.
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What IEEE standard defines the LLC sub-layer of the Data Link layer?
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IEEE 802.2
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What is the purpose of the LLC sub-layer of the Data Link layer?
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It is responsible for error detection, error correction, synchronization of data frames and flow control.
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What hardware operates at the Physical layer?
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Cables/media & connectors, network hubs, repeaters.
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What hardware operates at the Data Link layer?
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NIC, Switches, Bridges and WAP
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Name two of the protocols used by devices that operate at the Network layer.
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IP, IPX, RIP, OSPF, NLSP
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What is the primary function of the Network layer?
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Routing & Route Selection
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What is the function of the Transport layer?
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- Performs segmentation of data into manageable packets.
- End to end error detection. - Flow control. - Works with the Network layer to provide guaranteed delivery and acknowledgement of data packets. |
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What is the function of the Session layer?
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- Manages dialog between applications running on remote computers.
- Sets up, regulates and terminates the sessions. |
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What is the function of the Presentation layer?
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Provides data format translation.
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What is the function of the Application layer?
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Provides an interface for applications to access network services.
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UDP is a connectionless protocol that functions at what layer?
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Layer 4 or the Transport layer
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TCP is a connection oriented protocol that fuctions at what layer?
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Layer 4 or the Transport layer
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What hardware operates at the Network layer?
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Routers
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