Internet History
What 1960s project funded by the U.S. Department of Defense was the start of the internet?
ARPANET
What are devices on the internet called?
What device sends packets from one place to another?
A router
What protocol makes sure data arrives in order?
TCP
What is the top layer of the TCP/IP stack?
The application layer
What protocol developed in the 1970s became the foundation of the modern internet?
TCP/IP
What are the two types of hosts?
Clients and servers
What are small pieces of data called?
Packets
What protocol handles addressing and routing?
IP
What layer moves data between apps?
The transport layer
What invention in 1989 changed how we access and share information online?
The World Wide Web
Where do most servers live today?
Data centers.
What is the method of sending packets called?
Packet switching
What protocol is used when you visit a website?
HTTP
What layer handles IP addresses?
The network layer
What major trend in the 2000s changed how people connect with each other online?
Social media and mobile internet
What type of network connects homes to the internet?
Home access networks
What table helps routers decide where to send packets?
A forwarding table
What protocol is fast but not always reliable?
UDP
What layer deals with physical connections?
The link layer
What two modern technologies are expanding the internet today?
The Internet of Things and 5G
What type of network uses 5G for phones?
Mobile access networks
What routing protocol helps big networks share info?
BGP
What do protocols define so devices can talk?
Protocols define how data should be formatted, ordered, and responded to so devices can understand each other.
What is adding layer info to data called?
Encapsulation