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Questions and Answers
LOCAL AREA NETWORK is commonly abbreviated as _______
LAN
Ethernet uses _______ topology, while Token-ring is rarely seen
Star
Ethernet uses _______ technology to detect collisions
Carrier Sense Multi Access/Collision Detection
_______ is the traditional technology for connecting wired local area networks
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LAN can be _______, wireless, or in both forms at once
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_________ is a type of LAN technology that allows multiple virtual networks to coexist on the same physical network
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Fast Ethernet on fiber is defined under 100BASE-FX standard which provides speed up to 100MBPS on ______.
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Ethernet over fiber can be extended up to 100 meters in half-duplex mode and can reach maximum of 2000 meters in full-duplex over ______ fibers.
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Giga-Ethernet provides speed up to 1000 mbits/seconds, standardized over UTP using Cat-5, Cat5e and Cat-6 ______.
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Virtual LAN is a solution to divide a single Broadcast domain into multiple Broadcast ______.
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Introduction of switches to Ethernet has removed single collision domain issue and each device connected to switch works in its separate ______ domain.
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LAN uses Ethernet which in turn works on shared media creating one single ______ domain and one single Collision domain.
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On the occurrence of collision in Ethernet, all its hosts ______, wait for some random amount of time, and then re-transmit the data.
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Ethernet connector is network interface card equipped with 48-bits MAC address. This helps other Ethernet devices to identify and communicate with remote devices in ______.
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Traditional Ethernet uses 10BASE-T specifications. The number 10 depicts ______ speed, BASE stands for baseband, and T stands for Thick Ethernet.
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Fast Ethernet is a local area network (LAN) transmission standard that provides a data rate of 100 ______ per second (referred to as "100BASE-T").
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To encompass need of fast emerging software and hardware technologies, Ethernet extends itself as ______. It can run on UTP, Optical Fiber, and wirelessly too.
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It uses CSMA/CD technique for wired media sharing among the Ethernet hosts and CSMA/CA (CA stands for Collision Avoidance) technique for wireless Ethernet ______.
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Study Notes
LAN Overview
- LAN (Local Area Network) allows sharing of resources such as printers, file servers, scanners, and internet among computers.
- LANs are composed of inexpensive networking and routing equipment.
- Local servers provide file storage and other locally shared applications.
- LANs operate on private IP addresses and do not involve heavy routing.
- LANs work under their own local domain and are controlled centrally.
LAN Technologies
- Ethernet is the most widely employed LAN technology and uses Star topology.
- Token-ring is another LAN technology, but it is rarely seen.
Ethernet
- Ethernet is a traditional technology for connecting wired local area networks (LANs).
- Ethernet enables devices to communicate with each other via a protocol.
- Ethernet was invented by Bob Metcalfe and D.R. Boggs in 1970 and standardized in IEEE 802.3 in 1980.
- Ethernet shares media, which has a high probability of data collision.
- Ethernet uses Carrier Sense Multi Access/Collision Detection (CSMA/CD) technology to detect collisions.
Ethernet Connector
- An Ethernet connector is a network interface card equipped with a 48-bits MAC address.
- The MAC address helps other Ethernet devices to identify and communicate with remote devices in Ethernet.
10BASE-T Ethernet
- Traditional Ethernet uses 10BASE-T specifications.
- 10BASE-T provides transmission speed up to 10MBPS and uses coaxial cable or Cat-5 twisted pair cable with RJ-5 connector.
- Ethernet follows Star topology with segment length up to 100 meters.
Fast Ethernet
- Fast Ethernet is a local area network (LAN) transmission standard that provides a data rate of 100 megabits per second.
- Fast Ethernet can run on UTP, Optical Fiber, and wirelessly too.
- It can provide speed up to 100MBPS.
Giga-Ethernet
- Giga-Ethernet provides speed up to 1000 mbits/seconds.
- IEEE802.3ab standardizes Giga-Ethernet over UTP using Cat-5, Cat5e, and Cat-6 cables.
- Giga-Ethernet is defined in the IEEE 802.3 standard and is currently being used as the backbone in many enterprise networks.
Virtual LAN (VLAN)
- VLAN divides a single Broadcast domain into multiple Broadcast domains.
- Host in one VLAN cannot speak to a host in another.
- VLAN is a solution to divide a single Broadcast domain into multiple Broadcast domains.
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Description
Learn about how Ethernet handles collisions by rolling back, waiting for a random amount of time, and then re-transmitting the data. Explore the 10BASE-T specifications used in traditional Ethernet networks and how MAC addresses help in device communication.
