section 1.2 Flashcards
What is the first step in the interaction between a web browser and a web server?
“A user entering a URL into a web browser’s address bar or clicking on a link”
What does the browser request from the DNS server?
“To resolve the domain name into an IP address”
Once the IP is known, what type of connection does the browser initiate to the server?
“A TCP connection”
After establishing a TCP connection, what does the browser construct and send?
“An HTTP request”
What does the server do upon receiving the HTTP request?
“Processes it and finds the requested resources”
What does the server respond with?
“An HTTP response
Where is the required page stored after being downloaded?
“Into the cache of the devices”
What happens if the page contains additional resources?
“Each resource goes through the same process (steps 1 to 3) to get downloaded and displayed”
What is a URN?
“Identifies a resource by name in a particular namespace”
What is a HTTP Request?
“An HTTP request is made by a client whenever it wants to retrieve information from a server or send data to a server”
Name four common HTTP methods?
“GET
What is a HTTP Response?
“An HTTP response is sent by the server in reply to an HTTP request made by the client”
What are HTTP Status Codes?
“HTTP status codes are three-digit numbers that provide information about the status of an HTTP request”
Name the five categories of HTTP status codes.
“1xx Informational
Name three Website Builders (WYSIWYG Tools).
“Wix
