Computer Networks Lecture 10: Data Link Layer and Protocols

Transferring datagram from one node to the physically adjacent node over a link.

It picks up data from hardware in the form of electrical signals, assembles them in a recognizable frame format, and hands them over to the upper layer.

Framing: encapsulating packets from the network layer into frames and sending each frame bit-by-bit on the hardware.

<p>Ethernet card and 802.11 card.</p> Signup and view all the answers

<p>To transfer datagrams over different types of links, e.g., Ethernet on one link, 802.11 on another link.</p> Signup and view all the answers

<p>Assembles them into frames.</p> Signup and view all the answers

<p>Single-bit error and Burst error.</p> Signup and view all the answers

<p>Simple Parity Checking or One-dimension Parity Check.</p> Signup and view all the answers

<p>Logical Link Control (LLC) and Media Access Control (MAC).</p> Signup and view all the answers

<p>Hardware addressing mechanism and controls physical media access.</p> Signup and view all the answers

<p>Encapsulating packets from the network layer into frames and sending them bit-by-bit on the hardware</p> Signup and view all the answers

<p>Resolving IP addresses to MAC addresses for data transfer</p> Signup and view all the answers

<p>By implementing error detection and correction mechanisms</p> Signup and view all the answers

<p>Resolving IP addresses to MAC addresses for data transfer</p> Signup and view all the answers

<p>The wire protocol uses MAC sublayer, while wireless protocol does not</p> Signup and view all the answers

<p>Picks up data in the form of electrical signals and assembles them into recognizable frame format</p> Signup and view all the answers

<p>Framing and detecting errors</p> Signup and view all the answers

<p>Burst error</p> Signup and view all the answers

<p>Hardware addressing mechanism</p> Signup and view all the answers

<p>Two-dimensions Parity Check</p> Signup and view all the answers

<p>Error correction</p> Signup and view all the answers

<p>Simple Parity Checking or One-dimension Parity Check</p> Signup and view all the answers

<p>They are unique on the link.</p> Signup and view all the answers

<p>Flow control</p> Signup and view all the answers

<p>To recover actual data bits after encountering problems in transmission.</p> Signup and view all the answers

<p>Dealing with framing and detecting errors.</p> Signup and view all the answers