Web Connectivity (web as communications system) Flashcards
What was the problem with communication between separate compute networks?
Incompatibility of OSs, devices and communication protocols
What is the solution to the communication problem between computer networks?
The Internet Protocol Suite(TCP/IP and its associated tech)
What is the difference between the internet and the WWW?
The internet is a network of networks that connects computers worldwide together, and allows information to be shared between those computers as long as they are connected to the internet.
The WWW is a way of accessing the information over the Internet. It is an information sharing model that used HTTP protocol to transmit data.
What is a Web server?
A computer program which stores collections of pages and sends copies of them to anyone who requests.
Why do we use the DNS instead of IP addresses?
Domain names are easier to remember than a series of numbers and dots .
Explain a TLD
The .com or .gov or .pizza part of websites address
How is traffic flow managed between networks?
- Packets and packet switching. The most widely used protocol is TCP/IP
- Net neutrality
Brief explanation of how TCP/IP
Packets are given sequence numbers as they are broken up and sent.
Server then calculates a checksum value, which is verified by recalculating the value using the received data
What is net neutrality?
A working concept, that ensures ISPs and governments treat all data on the internet the same, not charging differently by discriminating based on user, age, race, content e.t.c
What is a URL?
Uniform Resource Locator. Specifies the location of data on the Internet.
Name the parts of this URL.
https://www.brainscape.com/decks/6041550/cards/quick
https:// - protocol www - sub-domain brainscape - main domain .com - TLD /decks/6041550/cards/quick - directory
