Flashcards in Cisco Networking Fundamentals Deck (95)
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91
TCP/IP Network Access Layer
Controls the hardware devices and media that make up the network. Exchanges frames between devices.
92
Segmentation
Breaking the message into smaller pieces for transmission. Allows different transmissions to be interleaved, taking turns sending their pieces (called multiplexing). Also increases reliability.
93
The encapsulation process / Data encapsulation
The process of adding various protocols and information to application data as it is passed down the protocol stack to be transmitted across the network media.
The process that adds additional protocol header information to the data before transmission.
94
PDUs
Protocol Data Unit. The form that a piece of data takes at any layer during encapsulation.
• Data - The general term for the PDU used at the application layer
• Segment - Transport layer PDU
• Packet - Network layer PUD
• Frame - Data link layer PDU
• Bits - A Physical layer PDU used when physically transmitting data over the medium
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