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53 Cards in this Set
- Front
- Back
APIPA |
Auto Private IP Addressing
- private range of addresses automatically assigned by a host that can't obtain information from dhcp |
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Default Gateway |
Provides a route for tcp/up to use when communicating with hosts on remote networks |
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DNS Server |
Server provides a domain name to an IP address |
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FDDI |
Fibre Distributed Data Interface
Standard for transmitting data on fibre optic cables at a rate of 100Mbps |
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Hops |
# of times a packet stops at a packet switch exchange before reaching destination |
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Extranet |
Private computer network organisations use to share information with its users available to users outside the company |
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Intranet |
Private computer network organisations use to share information with its users |
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DSL |
A family of technologies that provide data transmissions over local telephone networks |
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VPN |
Virtual Private Network Connection between 2+ devices on different networks |
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HUB |
Enables computers on network to communicate Hosts send data to hub, it broadcasts it |
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LAN |
Group of computers in a small area that share the same network |
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Router |
Enables computers to communicate between networks |
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Switch |
Works like a hub but specifies ports Transieves's data simultaneously |
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Twisted pair categories |
Cat 3 - 10Mbps Cat 5 - 100Mbps Cat 5e - 100Mbps - 1Gbps Cat 6 - 1Gbps+ |
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Plenum Rated |
Teflon coated wires to make them resistant to fire Should be fitted where sprinkler systems can't reach |
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Wireless Repeater |
Rebroadcasts signal to extend its range |
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Continuity Tester |
Tool to test problems in a cable |
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COMMAND - Netstat -an |
Past internet connections |
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OSI Model |
Application Presentation Session Transport Network Data link Physical |
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VLAN |
Group of hosts with a common set of requirements that communicate as if they were connected together |
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WAP |
Central connecting device for the network |
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WLAN |
Network with 1 wireless access point and 1 computer |
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Physical |
Physical network, media, signal methods: Cables, NICs |
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Transport |
Manages message fragmentation & reassembly: TCP, UDP, defines ports & reliability |
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Network |
Manages data routing & creating sub networks: logical or IP Addressing; determines best path for destination |
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Data Link |
Error free transfer of data frames: switches, Mac addressing |
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Session |
Establishes communicating between devices: |
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Presentation |
Translates data to common format: http, encryption services |
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Application |
Enables users & applications to access network services: internet services |
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NIC/Network Adapter |
Device that enables you to transieve data to and from computers |
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IP address |
Defines your computer your working on |
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Network Controller OS |
Controlling server in charge of user & computer accounts, network time and well being of entire domain of computers and users |
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Network Documentation |
Shows network layout and connections in a logical and physical way |
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Serial Data Transfer |
Transferring data 1 bit at a time |
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Perimeter Network DMZ |
Small network separate to companies lan and internet Allows users outside company lan to access services in the DMZ |
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Full Duplex |
Network card can transieve data simultaneously |
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Half Duplex |
Network card can transieve data but not at the same time |
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Distributed computing |
Each computer has own processing power |
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File Server |
Stores files for computers to share |
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Frames |
Group of bytes packaged by network adapter for transmission across the network |
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Client - Server Model |
An architecture that distributes applications between servers and clients |
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Centralized Computer |
Super Computer connected to dumb pcs that have no processing power, just a keyboard and monitor |
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Token Ring |
Sends information in a ring 1 by 1 fashion before it reaches destination |
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Mesh Topology |
Every computer connected to each other |
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Ethernet |
802.3u / fast Ethernet / 100Mbps 802.3ab / Gigabit Ethernet / 1Gbps |
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Ring Topology |
Each computer connected to network using closed loop |
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Star Topology |
Each computer connected to central connecting point |
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Bus Topology |
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Network Address Translation - NAT |
Method of translating IPv4 address on one network to another Device with 2 IP addresses that's used for different things; internet & lan |
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WINS |
Windows Internet Name Service Resolves NetBIOS names to IP addresses |
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Wireless Encrypting Protocols |
WEP - 64bit WPA & WPA2 - 256bit Tkip - 128bit AES - 128, 192 & 256bit |
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VPN |
Create a private network and provide a secure tunnel across the internet |
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4 Ping Options |
Ping -n: adjust echo request Ping -w: adjust timeout in ms Ping -l: adjust size of Ping packet Ping -t: till you force it to stop Ping -i adjust ttl |