Unit 2 - The Internet Flashcards
protocol
an agreed upon set of rules that specify the behavior of some system
IP address
the unique number assigned to each device on the internet
internet protocol (IP)
- a protocol for sending data across the internet that assigns unique numbers (IP addresses) to each connected device
what is a benefit of IPv6 over IPv4
IPv6 allows for a greater number of addresses than IPv4, which allows more devices to be connected to the Internet
when a computer sends a message to another computer, what must it specify and include
it must specify the recipient’s IP address and also include its own IP address so that the second computer can reply
IPv4
- Each IP address is split into 4 numbers separated by decimals that each can range from 0 to 255.
- Overall, that’s 2^32 possible values: 4,294,967,296 possible IPv4 addresses.
IPv6
- This was proposed to accommodate more devices.
- There are 8 hexadecimal numbers, each 4 digits long, which means there are 2128 possible IPv6 addresses.
Computing Device
a machine that can run a program, including computers, tablets, servers, routers, and smart sensors
computing system
a group of computing devices and programs working together for a common purpose
computing network
a group of interconnected computing devices capable of sending or receiving data
path
the series of connections between computing devices on a network starting with a sender and ending with a receiver
bandwidth
the maximum amount of data that can be sent in a fixed amount of time, usually measured in bits per second
router
a type of computer that forwards data across a network
redundancy
The inclusion of extra components so that a system can continue to work even if individual components fail
fault tolerant
Can continue to function even in the event of individual component failures
