Internet Vocab Flashcards
ARPANET
Advanced Research Project Agency Network; 4 computers connecting 4 universities.
Internet/Internet Working Protocol
Large number of independently operated networks
Internet Service Provider
ISP; Connects devices
Protocol
An agreed upon set of rules and standards used for communication between devices
Internet Protocol
IP; The system that is used to give each device a network location on the internet so other devices may connect to it
IP Address
(4 byte) 32 bits with 8 bits for each section. (IPv4)
1. Network/sub-network
2. Region/Network
3. Subnetwork
4. Address
Domain Name System
DNS; Find domain names and look up corresponding IP address
Packets
How info travels from one place on the internet to another
Routers
Keeps track of every available route and picks the “cheapest” path for every packet.
Fault Tolerant
A network can still move packets if something goes wrong.
Transmission Control Protocol
TCP; Manages the sending and receiving of data (packets)
Scalable or Scalability
A system can change in size and scale to meet new demands
Redundant or Redundancy
Having multiple routes to a destination
Bit
Any pair of opposites or Binary code
Bandwidth
The limit of how fast a device can send info, measured in seconds
Bit Rate
Number of bits that can be sent or received per second
Latency
The amount of time it takes a bit to travel from the source to the requesting device
HTTP
HyperText Transfer Protocol; The language one computer uses to ask another for info.
Open Protocols
Publicly available standardized rules for communication between devices on the Internet
UDP
User Datagram Protocol; Quickly sending packets with little regard to security or whether all packets arrive. Speed > Security
Electricity, Light, Radio
3 methods of transferring data
Packet Switching
Transfer of small pieces of info
World Wide Web
WWW; All the public websites that are available over the internet without a password
Computer Network
A set of computers sharing resources located in network nodes
