Internet Basics Flashcards
HTTP
Hypertext Transfer Protocol
URL
Uniform Resource Locator
How many layers in IP layered network model?
Four: Link Layer, Internet Layer, Transport Layer, Application Layer
What happens in the link layer?
Physical transmission of raw bits
What happens in the Internet Layer(IP Layer)?
Establishes connections; routes devices to IP address destinations
What happens in the Transport Layer?
Data is given a sequence number, then broken down and transmitted to the destination
What happens in the Application Layer?
Process to process communication; protocol
DNS stands for?
Domain Name System
Generic top-level domain (gTLD)
.com, .net, .org, .gov, .edu, .art, .cash, etc
What is puny code?
Translates characters from other languages into ascii equivalents
What was the first assigned top-level domain name?
.arpa - used for reverse DNS lookups
Which level of domain name is usually registered?
Second-level
What are response codes?
returned by server from response header; ex. 404: Not Found, 401: Not Authorized
What is browser rendering?
Creating the page in the browser with algorithms to download, parse, layout, and fetch assets
Where is the root of a web server?
It corresponds to a folder on the server