GUIDE QUESTIONS AND VERIFIED ANSWERS 100%
CORRECT(GRADED A+)
What is the move towards separating document structure, presentation, and webpage
interaction called? - (correct answer) Separation of concerns
What is a packet? - (correct answer) Information sent on the Internet
What does an IP address represent? - (correct answer) A computer's unique
address on the Internet
What is the format of a typical IP address? - (correct answer) 32 bits divided into
four 8-bit groups
What is IPv4? - (correct answer) The original Internet Protocol with 32-bit addresses
What is IPv6? - (correct answer) A new version of Internet Protocol with 128-bit
addresses
What does DNS stand for? - (correct answer) Domain Name Server
What are root servers? - (correct answer) Thirteen main DNS servers in the world
What is a domain name registrar? - (correct answer) Services that allow domain
name registration
What is a domain name? - (correct answer) A name for an IP address
What does TLD stand for? - (correct answer) Top-level Domains
Give examples of TLDs. - (correct answer) .com, .net, .org, .edu, .gov
What does ccTLD stand for? - (correct answer) Country Code Top-Level Domain
Give examples of ccTLDs. - (correct answer) .uk (United Kingdom), .us (United
States), .ru (Russia)
What does SLD stand for? - (correct answer) Second-Level Domain
What is an example of an SLD? - (correct answer) 'wikipedia' in wikipedia.org
What does TLD stand for? - (correct answer) Third-Level Domain
What is an example of a TLD? - (correct answer) 'www' in www.stanford.edu
, What does URL stand for? - (correct answer) Uniform Resource Locator
What is a URL? - (correct answer) The location of a web resource, such as
http://www.google.com
What is a scheme in a URL? - (correct answer) Characters at the beginning of a
URL followed by a colon (:) or a colon and double slashes (://)
Give examples of common schemes. - (correct answer) http, https, mailto, file
What is a hostname in a URL? - (correct answer) The complete domain name
following the scheme in a URL
What is a path in a URL? - (correct answer) The characters to the right of the
hostname in a URL
What is a query string in a URL? - (correct answer) Optional characters to the right
of the question mark (?) in a URL that provide data for the web server
What is a fragment in a URL? - (correct answer) Optional characters at the end of a
URL that with a hash character (#) and refer to a certain location within a webpage
What is a 404? - (correct answer) The status code that a web server returns to a
browser when a requested webpage is not found
What is linkrot? - (correct answer) When content is removed from the web and the
URLs that used to point to the content now return a 404 (not found) status code
What does TCP/IP stand for? - (correct answer) Transmission Control Protocol /
Internet Protocol
What is TCP/IP? - (correct answer) A protocol suite that governs how data packets
are transferred over the Internet from one machine to another
What is an HTTP request? - (correct answer) A message sent from the web browser
to the web server
What is an HTTP response? - (correct answer) A message sent from the web server
back to the web browser in response to an HTTP request
What is Content-Length? - (correct answer) Number of bytes in the HTTP
response's message body
What is Content-Type? - (correct answer) Media type of the HTTP response's
message body