Which of the following options best describes the concept of Ethernet?

Ethernet is defined by the IEEE 802.3 family of standards, which specify physical-layer media (copper or fiber) and data-link-layer framing for wired local- and metropolitan-area network communication among stations. It therefore most precisely fits the description “a standard that defines wired connections between networked devices.”

B – Refers to wireless (IEEE 802.11) rather than wired; not Ethernet.

C – Too vague; many standards cover “digital devices,” lacks the wired-network specificity of Ethernet.

D – “Network equipment” could include wireless or logical interconnects; omits that Ethernet specifically addresses wired media and end-station links.

1. IEEE Std 802.3-2022

Clause 1 “Overview

” 1.1 Scope: “This standard defines Ethernet … a wired LAN technology.”

2. Kurose

J. & Ross

K. Computer Networking: A Top-Down Approach

8th ed.

Pearson

2021

§1.3.2

pp. 50-51: discussion of Ethernet as wired LAN technology.

3. MIT OpenCourseWare

6.02 “Introduction to EECS II

” Lecture 5 slides

p. 8: “Ethernet (IEEE 802.3) – wired LAN standard.”

4. Cisco Systems

“Ethernet Technology Overview

” White Paper #C11-740592

2023

p. 2: “Ethernet is the predominant wired‐LAN technology defined by IEEE 802.3.”