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2. Data link layer - Wikipedia

   en.wikipedia.org/wiki/Data_link_layer

   The data link layer, or layer 2, is the second layer of the seven-layer OSI model of computer networking. This layer is the protocol layer that transfers data between nodes on a network segment across the physical layer . [ 2 ]

3. Logical link control - Wikipedia

   en.wikipedia.org/wiki/Logical_link_control

   In the IEEE 802 reference model of computer networking, the logical link control (LLC) data communication protocol layer is the upper sublayer of the data link layer (layer 2) of the seven-layer OSI model. The LLC sublayer acts as an interface between the medium access control (MAC) sublayer and the network layer.

4. Job Descriptions Decoded: Professional Network Support - AOL

   www.aol.com/2014/06/11/job-descriptions-decoded...

   Shutterstock (composite: Mack Gelber) When you apply for a job, be sure you take all of the various aspects of the job into account. If you're in a technical role, emphasize those skills, but if ...

5. Technical support - Wikipedia

   en.wikipedia.org/wiki/Technical_support

   Tier II (or Level 2, abbreviated as T2 or L2) is a more in-depth technical support level than Tier I and therefore costs more as the technicians are more experienced and knowledgeable on a particular product or service.

6. Medium access control - Wikipedia

   en.wikipedia.org/wiki/Medium_access_control

   In IEEE 802 LAN/MAN standards, the medium access control (MAC), also called media access control, is the layer that controls the hardware responsible for interaction with the wired (electrical or optical) or wireless transmission medium.

7. Computer network engineering - Wikipedia

   en.wikipedia.org/wiki/Computer_network_engineering

   Computer network engineering is a technology discipline within engineering that deals with the design, implementation, and management of computer networks. These systems contain both physical components, such as routers , switches, cables, and some logical elements, such as protocols and network services .

8. IEEE 802 - Wikipedia

   en.wikipedia.org/wiki/IEEE_802

   IEEE 802 is a family of Institute of Electrical and Electronics Engineers (IEEE) standards for local area networks (LANs), personal area networks (PANs), and metropolitan area networks (MANs). The IEEE 802 LAN/MAN Standards Committee (LMSC) maintains these standards.

9. Network engineering - Wikipedia

   en.wikipedia.org/wiki/Network_engineering

   Network engineering may refer to: Internetworking, service requirements for switched telephone networks; Computer network engineering, the design and management of computer networks; Telecommunications Engineering, developing telecommunications network topologies; Broadcasting, spreading messages to a dispersed audience electronically