Computer Networks notes
65 notes by 59 users · Page 2 of 2
This Computer Networks notes page on GoConqr brings together user-made notes on hardware, connectivity, protocols and error checking. School students can use them to revise these topics, while teachers can find material for lessons. There are over 50 notes, with a strong school-level focus. Pick a note and start exploring.
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- Advantages and effects of networks91
- Types of networks641
- Network topologies919
- Client-server and peer-to-peer networks64
- Network hardware483
- Wired and wireless networks200
- Data transmission147
- Error detection15
- Network performance29
- Network protocols and layers282
- IP addressing and DNS23
- The internet and World Wide Web110
- Network security81
Notes
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Untitled Router A router receives data in the form of packets and forwards them to their destination which is often another router. Routers direct traffic through large networks notably the internet. Small routers are used in ...
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Session 15&16 - creado desde un Mapa Mental NETWORK Architechture Internet vs WWW
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Networks and the effects of using them - created from Mind Map Networks Terms used widely in this unit: Networks devices
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different networks - created from Mind Map LAN Switch and Router advantages what is a LAN?
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INTERNET - creado desde un Mapa Mental It is made up of networks of different sizes and interconnected characteristics constitutes a global network that allows people to communicate and share information TECNOLOGIAS DE ACCESO A INTERNET
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Serial and Parallel Serial transmission is simple, one data bit at a time along a single wire. Advantages: arrives in order, less chance of data being skewed. single wire, less chance of data error. Much cheaper. Disadvantages: ver...
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Networks and the effects of using them - created from Mind Map Networks: Networks devices: •Networks devices
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INTERCONNECTED MOBILE DEVICES - creado desde un Mapa Mental MOBILES DEVICES: There have been many technological advances that have made possible development of these mobile devices possible. They are characterized by their processing and network communication capabilities. TYP...
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Bandwidth Bandwidth is wide enough to bring data to you when doing normal things e.g checking emails. HD films have lots of bits of data- large file- may slow down the connectionBandwidth- Megabits per secondBuffering- streamin...
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INTERCONNECTED MOBILE DEVICES - creado desde un Mapa Mental MOBILE DEVICES WIRELESS CONNECTION TYPES CONNECTED HOME
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Untitled Explain the differences between client-server and peer-to-peer networking [4 marks] Client-Server handles machines as either clients or servers whereas peer-to-peer sees every device as equal/having equal status, mean...
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Networks Support the Way We Work the business world, data networks were initially used by businesses to internally record and manage financial information, customer information, and employee payroll systems. business networks evolved to enable ...
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Network and the effects of using them Data Packet Data is carried in packet (according which protocol/ set of rules) that being used. Packet of data usually contained these info: some form of headers to identify sender's IP address receiver's IP add...
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Network topology - created from Mind Map Bus Mesh Ring
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B a n d w i d t h BandwidthBits of Data travel along the network Connection.Bandwidth is the measure of capacity of a connection, it is measured in megabits per second.Slow network: more data passing through, maybe due to downloading o...
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Untitled a protocol is a set of rules that outlines how devices on a network communicate.a mac address is a unique number written into the network card. a packet is when data is transmitted, it is broken down into packets. The...
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Networks HubConnects multiple pcs in a networkallows them to share data packetsSwitchesNetwork cables can only hold 1 data packet at one time.A data collision occurs when 2+ PCs send data at one time.a switch will tell the PCs...
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network revision network def 2 or more devices connected together in order to communicate and share recources network advantages : secure, central storage of data, more storage, many can connect and share data
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SNMPv3 noAuthNoPriv: noauth keyword in the IOS means no authentication and no encryption.AuthNoPriv: auth keyword in the IOS means authentication but no encryption.AuthPriv: priv keyword in IOS means both authentication and ...
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Communication Technologies - created from Mind Map setting up ad hoc networks Security issues with open networks Performance issues with ad hoc networks
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network - created from Mind Map advantages types of network? disadvantages
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network - created from Mind Map types of network disadvantages advantages
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WI-FI WiFi (also spelled WiFi or WiFi) is a popular technology that allows an electronic device to exchange data wirelessly (using radio waves) over a computer network including high speed internet...
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IP addresses/Subnet Masks In a local network, subnets are used to make networks more efficient (less searching needed as fewer addresses exist: address book is thinner!)
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Wired and wireless networks The Client ServerThe server is a big