Ethernet
Everything on SkillVeris tagged Ethernet — collected across the glossary, study notes, blog, and cheat sheets.
15 resources across 2 libraries
Study Notes(1)
Interview Questions(14)
What is a MAC Address?
A MAC (Media Access Control) address is a 48-bit hardware identifier burned into a network interface card by its manufacturer, used to identify a device unique…
What is the Data Link Layer (OSI Layer 2)?
The Data Link layer is OSI Layer 2 — it packages raw bits from the Physical layer into structured frames, adds MAC addresses for local delivery, and detects (t…
MAC Address vs IP Address
A MAC address is a fixed, hardware-burned Layer 2 identifier used to deliver frames within a local network segment, while an IP address is a logical, reassigna…
What is MTU (Maximum Transmission Unit)?
MTU (Maximum Transmission Unit) is the largest size, in bytes, that a single packet can have on a given network link without needing to be split, commonly 1500…
What is a Collision Domain?
A collision domain is the set of network devices whose transmissions can collide with each other because they share the same physical medium at the same time,…
What is Full-Duplex vs Half-Duplex Communication?
Full-duplex means a link can send and receive data simultaneously in both directions at once, while half-duplex means only one direction can transmit at a time…
What is Ethernet?
Ethernet is the family of wired networking standards (IEEE 802.3) that defines how devices on a local area network physically connect and frame data at the Phy…
What is CSMA/CD?
CSMA/CD (Carrier Sense Multiple Access with Collision Detection) is the media access method used on legacy shared Ethernet segments where a device listens befo…
What is a Crossover Cable?
A crossover cable is an Ethernet cable wired so that the transmit pins on one end connect to the receive pins on the other end, allowing two similar devices, s…
Straight-Through vs Crossover Cable: What is the Difference?
A straight-through cable wires each pin to the identical pin number on both ends and is used to connect dissimilar devices, such as a computer to a switch, whi…
What is a Network Bridge?
A network bridge is a Layer 2 device that connects two or more network segments and selectively forwards Ethernet frames between them based on learned MAC addr…
What is a Repeater?
A repeater is a simple Layer 1 (Physical layer) networking device that receives an electrical, optical, or radio signal, regenerates and amplifies it to remove…
What is a Network Hub?
A network hub is a basic Layer 1 device that connects multiple Ethernet devices into a single network segment by electrically repeating every incoming signal o…
What are Jumbo Frames?
Jumbo frames are Ethernet frames carrying a payload larger than the standard 1500-byte MTU — typically up to 9000 bytes — used to reduce per-packet overhead an…