Term
| NETWORK INTERFACE CARD (NIC) |
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Definition
| This device often is the Data Link Layer within itself. It inserts into the system bus of a computer and makes the connection between the software processes and the physical media. |
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Term
| LOGICAL LINK CONTROL (LLC) |
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Definition
| This Data Link Sublayer places the informatoin in the frame that identifies which Network Layer Protocol is being used for the frame. Layer 3 Protocols such as IP and IPX are identified. |
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Term
| MEDIA ACCESS CONTROL (MAC) |
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Definition
| Data Link Layer addressing and delimitation of data according to the physical signaling requirements of the medium and the type of Data Link Protocol in Use. It is the beginning and ending of the frame. |
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Term
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Definition
| Collision Detection and Collision Avoidance. |
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Term
| LIST THESE UPPER LINK DATA LINK LAYER STANDARDS |
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Definition
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Term
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Definition
| One of the two media access control methods in which shared media is accessed. One station transmit at a given time. Devices have to wait their turn. No Collisions. |
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Term
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Definition
| Stations transmit at anytime, collisions will occur, CSMA/CD will reduce collisions. CSMA/CA will reduce collisions in a wireless networks. |
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Term
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Definition
| Communication that allows for one station to receieve while the other is sending. |
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Term
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Definition
| Communication that allows for reciept and transmission simultaneously. Stations can transmit and receieve at the same time. there are no collisions. |
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Term
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Definition
| This topology is limited to two nodes. Node 1 and Node 2. Data flows in a half duplex or full duplex link. |
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Term
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Definition
| A method in which data is passed to a destination over more than one real communications circuits. End users do not notice the intermediate switching in between the source and its destination. Frame Relays use virtual circuits. |
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Term
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Definition
| A network method where a token is passed around nodes that authrizes the node to communicate. |
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Term
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Definition
| AKA, Token Ring, Each Node receives a frame untill the frame is sent to the node with the correct address in its header. |
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Term
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Definition
| The Header, Data, and Trailer are three parts make up this PDU unit in the Data Layer. |
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Term
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Definition
| This is where the frame begins. Contains Source and Destination Addresses, QoS, Logical Connection Field, Physical Link Control, Flow Control, and Congestion Control. |
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Term
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Definition
| Used to determin if errors occured in the transmission and the reception of the frame. |
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Term
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Definition
| This is part of the FCS (Frame Check Sequence) this value is located in the trailer and it essentially is a way of checking whether or not the frame arrived at the right address destination. The Destination and Host often have the SAME CRC value if the frame was sent successfully. |
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Term
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Definition
| Preamble, Destination, Source, Type, Data, and FCS. Are all components of this particular protocol frame. |
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Term
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Definition
| Flag, Address, Control, Protocol, Data and FCS are all components of this particular protocol frame. |
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Term
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Definition
| Frame Control, Duration/ID, DA, SA, RA, Sequence Control, TA, Frame Body, FCS, Fragment Number, Sequence Number, Protocol Version, Type, Subtype, To DS, From DS, More Frag, Retry, Pwr Mgt, More Data, WEP, Order. |
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Term
| Carrier Sense Multiple Access |
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Definition
| What does CSMA Stand For? |
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Term
| THREE FUNDAMENTAL FUNCTIONS OF THE PHYSICAL LAYER |
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Definition
| Physical Components, Data Encoding, and Signaling |
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Term
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Definition
| Converting a stream of bits into a predefined code. |
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