WGU D276 (New 2023/ 2024 Update) Web Development Foundations Exam | Guide with Questions and Verified Answers| 100% Correct
WGU D276 (New 2023/ 2024 Update) Web
Development Foundations Exam | Guide with
Questions and Verified Answers| 100%
Correct
QUESTION
How many HTTP requests are made for a webpage that contains four web resources?
Answer:
- one for the html file and one for each resource
QUESTION
four parts of a HTTP request / response
Answer:
-start line
-zero or more header fields
-empty line
-optional message body
QUESTION
start line
Answer:
specifies the HTTP version being used. A REQUESTS start line includes a request type and
path;
a RESPONSES start line includes a status code and phrase.
QUESTION
header field
Answer:
keyword followed by a colon and a value. Header fields supply additional information about the
request or response
QUESTION
message body
Answer:
contains data being transferred between a web browser and web server.
In a REQUEST, the message body may be empty or contain submitted form data.
In a RESPONSE, the message body may contain the requested resource.
QUESTION
content-length
Answer:
number of bytes in the response’s message body
-the web browser uses the content length to determine how much data to expect from the web
server
QUESTION
content-type
Answer:
media type of the response’s message body
-common media types: text/css, image/jpeg, application/pdf, video/quicktime
QUESTION
Date
Answer:
datetime the response was generated by the web server
-Datetime values in HTTP headers are represented in Greenwich Mean Time (GMT), which is
equal to Coordinated Universal Time (UTC)
QUESTION
last-modified
Answer:
Datetime the requested resource was last modified on the web server.
-for resources that are dynamically created by the web server, the last modified datetime is often
not provided
QUESTION
server
Answer:
identifies the web server software that generated the response
-popular values for Server: Apache, Microsoft-IIS, nginx
QUESTION
Host
Answer:
the domain name for the requested path
-some websites are hosted at the same IP address, so the Host field helps the web server
determine which websites resource is being requested
QUESTION
user-agent
Answer:
Identifies the browser making the request
-Browsers often identify themselves using a unique string of characters. The User-Agent field
may be used by a web server to respond back with different resources depending on which
browser made the request. Ex: A desktop page may be sent back to a desktop Chrome browser,
but a mobile webpage may be sent back to an iPhone browser.
QUESTION
IANA (Internet Assigned Numbers Authority)
Answer:
a standards organization that manages various internet numbers and symbols, like global IP
address allocation, root zone management in DNS, and media types. IANA maintains a list of
HTTP headers that are currently active, obsolete, or experimental.
QUESTION
how to access Chrome’s developer tools (DevTools)
Answer:
by pressing Ctrl+Shift+i (Windows) or Command-Option-i (Mac)
QUESTION
HTTP request method
Answer:
indicates the desired action to perform on a resource
ex: GET, HEAD, POST, PUT, DELETE
QUESTION
GET
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