When forming a request URL, where should the parameter key1 be specified if the URL is in the form http://somesite.com/test?key1=[value1]?

The correct choice is to specify parameter key1 in the query section of the request URL. In the URL format provided (http://somesite.com/test?key1=[value1]), the part after the question mark (i.e., "key1=[value1]") is known as the query string. This is where key-value pairs are typically included to send additional parameters to the server.

The query string allows the client to surface specific data that the server can process and respond to accordingly. It is commonly used in GET requests to pass parameters needed for the operation being performed, such as filtering results or specifying conditionally necessary data.

Utilizing the query section not only helps in clearly separating parameters from the URL path but also makes it easier to manipulate and read. This format adheres to standard web practices and protocols, ensuring that data is sent in a way that is expected by most web applications and services.

In contrast, parameters in the path of the URL (as a segment of the URL itself), in headers (which are used for additional metadata and authentication), or in the body (generally used with POST requests for data submissions) would not be suitable for the key1 parameter in this case. Using the query string is the