WGU D276 OA EXAMS 2026 PRACTICE
QUESTIONS AND DETAILED ANSWER
EXPLANATIONS FULL SET
◉ ccTLD (Country Code Top Level Domain). Answer: domains that
have two letters to the right of the last period in a domain name.
Example: co.uk, .jp, .ar, .ph
◉ SLD (second level domain). Answer: Second-Level Domain, such
as 'wikipedia' in wikipedia.org.
◉ Third level domain. Answer: 'www' in www.stanford.edu.
◉ URL (Uniform Resource Locator). Answer: A location or address
identifying where documents can be found on the Internet; a Web
address
◉ Scheme. Answer: Characters at the beginning of a URL followed by
a colon (:) or a colon and double slashes (://). Common schemes
include http, https, mailto, and file.
◉ Hostname. Answer: The complete domain name following the
scheme in a URL.
,◉ Path. Answer: The characters to the right of the hostname in a
URL
◉ Query String. Answer: Optional characters to the right of the
question mark (?) in a URL that provide data for the web server.
◉ Fragment. Answer: Optional characters at the end of a URL that
contains a hash character (#) and refer to a location within a
webpage.
◉ 404. Answer: The status code that a web server returns to a
browser when a requested webpage is not found.
◉ Link Rot. Answer: When content is removed from the web and the
URLs that used to point to that content now return a 404 (not found)
status code.
◉ TCP/IP (Transmission Control Protocol/Internet Protocol).
Answer: a protocol suite that governs how data packets are
transferred over the Internet from one machine to another.
◉ HTTP Request. Answer: a message sent from the web browser to
the web server
, ◉ HTTP Response. Answer: a message sent from the web server
back to the web browser
◉ Content-Length. Answer: number of bytes in the response's
message body
◉ Content-Type. Answer: media type of the response's message
body
◉ Date. Answer: Datetime the HTTP response. was generated by the
web server.
◉ Last-Modified. Answer: Datetime the requested resource was last
modified on the web server.
◉ Server. Answer: Identifies the web server software that generated
the HTTP response.
◉ Host. Answer: The domain name for the HTTP requested path.
◉ User-Agent. Answer: Identifies the browser making the request.
QUESTIONS AND DETAILED ANSWER
EXPLANATIONS FULL SET
◉ ccTLD (Country Code Top Level Domain). Answer: domains that
have two letters to the right of the last period in a domain name.
Example: co.uk, .jp, .ar, .ph
◉ SLD (second level domain). Answer: Second-Level Domain, such
as 'wikipedia' in wikipedia.org.
◉ Third level domain. Answer: 'www' in www.stanford.edu.
◉ URL (Uniform Resource Locator). Answer: A location or address
identifying where documents can be found on the Internet; a Web
address
◉ Scheme. Answer: Characters at the beginning of a URL followed by
a colon (:) or a colon and double slashes (://). Common schemes
include http, https, mailto, and file.
◉ Hostname. Answer: The complete domain name following the
scheme in a URL.
,◉ Path. Answer: The characters to the right of the hostname in a
URL
◉ Query String. Answer: Optional characters to the right of the
question mark (?) in a URL that provide data for the web server.
◉ Fragment. Answer: Optional characters at the end of a URL that
contains a hash character (#) and refer to a location within a
webpage.
◉ 404. Answer: The status code that a web server returns to a
browser when a requested webpage is not found.
◉ Link Rot. Answer: When content is removed from the web and the
URLs that used to point to that content now return a 404 (not found)
status code.
◉ TCP/IP (Transmission Control Protocol/Internet Protocol).
Answer: a protocol suite that governs how data packets are
transferred over the Internet from one machine to another.
◉ HTTP Request. Answer: a message sent from the web browser to
the web server
, ◉ HTTP Response. Answer: a message sent from the web server
back to the web browser
◉ Content-Length. Answer: number of bytes in the response's
message body
◉ Content-Type. Answer: media type of the response's message
body
◉ Date. Answer: Datetime the HTTP response. was generated by the
web server.
◉ Last-Modified. Answer: Datetime the requested resource was last
modified on the web server.
◉ Server. Answer: Identifies the web server software that generated
the HTTP response.
◉ Host. Answer: The domain name for the HTTP requested path.
◉ User-Agent. Answer: Identifies the browser making the request.
