Understanding LAN

What does a network topology define?
The physical connections of hosts
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What is a LAN?
Group of computers in a small geographic area
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What does LAN require?
Network adapters, central connecting devices, some type of medium
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How is communication sent in LAN?
Serial fashion
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What is the most common topology?
Star
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How is a star topology wired?
Individually wired to a central connecting device
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What are the main features of mesh topology?
Computer connects to every other computer
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Does mesh topology need a central connecting device?
No
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What environment is a ring topology used?
LAN
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How is ring topology connected to the network?
Using a closed loop
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What are the main features of a token ring network?
Sends data logically and token goes to each computer
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How are token rings physically connected?
Star fashion
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How is token ring referred too?
IEEE 802.5
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What does a network adapter do?
Enables you to send and receive data
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What is the most common type of network adapter port?
RJ45 port
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How is ethernet written?
IEEE 802.3
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What access method do ethernet devices use?
CSMA/CD
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What is the data transfer rate?
The speed of a network
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How are computers and other devices wired?
Copper-based twisted-pair cables
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What is the most basic central connecting device?
Hub
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How does a hub work and what cables does it use?
Connects each of the networked computers and copper-based cables
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What is the most commonly used central connecting device?
Switch
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How does a switch work?
Utilises the MAC address, pinpoints where to send network
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What does a switch help to reduce?
Collissions
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What are routers main purpose?
Interconnect networks
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What does the default gateway do?
Provides a way out of one network to another
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What is an IP address split between?
The network and the host
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How is wireless networking written?
IEEE 802.11
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What does wireless networking help with?
Working from different locations and allowing guest access
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What access method do wireless devices use?
CSMA/CA
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What is a WLAN's main advantage?
Ability to roam
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What are the 4 types of transfers?
Unicast, broadcast, multicast and anycast
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Other cards in this set

Card 2

Front

Group of computers in a small geographic area

Back

What is a LAN?

Card 3

Front

Network adapters, central connecting devices, some type of medium

Back

Preview of the back of card 3

Card 4

Front

Serial fashion

Back

Preview of the back of card 4

Card 5

Front

Star

Back

Preview of the back of card 5
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