Prompt

Solve these questions about HTTP headers.

Walk-Through

This challenge will give you experience researching HTTP headers.

The answers to these questions can be found by doing an online search. A full table of HTTP headers can be found on Wikipedia.

Locating answers on a Webpage:

One method for locating answers on a webpage involves using the search function by pressing “CTRL + F” on the keyboard. This opens a dialog box where a keyword or short phrase can be entered to find specific content on the page.

It may be helpful to research and define unfamiliar terms from the question beforehand for better comprehension. Afterward, using “CTRL + F” can assist in identifying related terms or similar language within the page content.

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Please Note: One of the terms has been misspelled so often that the incorrect spelling is now standard usage. Please make sure you double check the spelling that is used in whatever reputable resource you find!

Questions

1. What HTTP request header is used to denote what URI linked to the resource being requested?

The description for this header is, “This is the address of the previous web page from which a link to the currently requested page was followed.”

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Note that the official specification has the name for this header spelled incorrectly. The correct answer should use the incorrect spelling from the specification.

2. What HTTP request header is used to identify the client software that made the HTTP request?

The description for this header is, “The user agent string of the user agent.”

3. What HTTP request header is used to identify the acceptable content types that can be returned?

The description for this header is, “Media type(s) that is/are acceptable for the response. See Content negotiation.”