Network+ N10-009 Layer 2 (Data-Link)
The Data Link layer packages packets from the Network layer into frames, adding headers and trailers for physical addressing (MAC), error detection, and flow control. It ensures reliable node-to-node delivery over the physical medium.
Data Link Layer
Key Terms
Data Link Layer
Packages data into frames and transmits those frames on the network.
Media Access Controll (MAC)
Physical addressing system of a device which operates on a logical topology.
Logical Link Control (LLC)
Provides connection services and allows acknoledgement of receipt of messages.
Isochronous
Networking devices use a common reference clock source and create time slots for transmission.
Synchronous
Network devices agree on clocking method too indicate beginning and end of frames and can use control charactrers.
Asynchronous
Network devices reference internal clock and use start and stop bits for synchronization.
Related Flashcard Decks
| Term | Definition |
|---|---|
Data Link Layer | Packages data into frames and transmits those frames on the network. |
Media Access Controll (MAC) | Physical addressing system of a device which operates on a logical topology. |
Logical Link Control (LLC) | Provides connection services and allows acknoledgement of receipt of messages. |
Isochronous | Networking devices use a common reference clock source and create time slots for transmission. |
Synchronous | Network devices agree on clocking method too indicate beginning and end of frames and can use control charactrers. |
Asynchronous | Network devices reference internal clock and use start and stop bits for synchronization. |