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Module 1: Physical Layer & Data Communication

20202m

The IEEE 802 project of the 1980s involved further defining the lower two layers of the OSI model. A number of standards were agreed upon during that time. Which of the following is the standard for ethernet?

(i) 802.2
(ii) 802.3
(iii) 802.4
(iv) 802.5

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(ii) 802.3

IEEE 802.3 is the standard for Ethernet (CSMA/CD-based LANs). For reference: 802.2 is Logical Link Control (LLC), 802.4 is Token Bus, and 802.5 is Token Ring.

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