Chapter 1 Flashcards
What are 2 ways to describe the internet?
- Structural:
an interconnected network of billions of devices around the world - Functional:
a networking infrastructure that provides services such as emailing and streaming
host / end system
a device that’s connected to a network
communication links
the physical links of the internet that allows data to travel between hosts
packet switches
devices like routers and switches that forward packets across a network – they determine the best path for each packet to travel from one device to another
packet
a small chunk of data sent over a network, containing data and information about its destination
transmission rate
speed at which data is transmitted over a network, usually in bps (bits per second)
What anology was used to describe the movement of packets across a network?
Packets are like cargo, communication links are highways, packet switches are intersections, hosts are factories, and the IP address is the factory address
Internet Service Provider (ISP)
a company that provides access to the internet for users and businesses
protocols
rules or standards that define how data is transmitted and received over a network
Internet Engineering Task Force (IETF)
an organization that creates internet standards like TCP/IP
Request For Comments (RFC)
technical documents published by the IETF
distributed applications
software programs that works with multiple devices, like file sharing and online gaming
socket interface
a tool that allows applications to send and receive data over a network
client
a device requests services or resources from a serve
server
a device or program that provides services or resources to clients
access network
the part of a network that connects devices to the broader internet, like Wi-Fi, cellular networks, and fiber-optic connections
