CORRECT ANSWERS STUDY SET Details
of ISM 4220 EXAM 3 100% VERIFIED
CORRECT ANSWERS STUDY
Hypertext Transfer Protocol (HTTP)
the standard protocol form communication between a web browser and a
web server
3 parts of a HTTP request
1. request line
2. request header
3. request body (optional)
request line
starts with a command, provides the Web page and ends with the HTTP
version number that the browser understands
request header
contains a variety of optional information such as the web browser being
used and the date
request body
contains information sent to the server, such as the information that the
user has typed into a form
3 parts of an HTTP response
1. response status
2. response header (optional)
3. response body (optional)
response status
contains the HTTP version number the server has used, a status code, and
a reason phrase
response header
, contains a variety of optional information, such as the Web server being
used, the date, and the exact URL of the page in the response
response body
the Web page itself
200
OK
403
Forbidden
404
Not Found
408
Request Timeout
511
Network Authentication Required
HTTP/3
modern browsers and HTTP 3 has moved from TCP to UDP
as we've moved further into web apps, we don't want one image to hold up
the entire app. instead of one TCP stream, they open multiple UDP
streams to transmit the data (technically called a multiplexed transport
protocol)
SMTP (simple mail transfer protocol)
covers message transmission between mail servers and between the
originating email client ad its mail server
2 most common standard to communicate between the receiver''s
email client and his or her mail server
Post Office Protocol (POP) and Internet Message Access Protocol (IMAP)
Post Office Protocol (POP)
deletes email from the server when copied to a client's computer
Internet Message Access Protocol (IMAP)
does not delete the email from the server
SMTP defines
how message transfer agents operate and how they format messages
sent to other message transfer agents