Refer to the exhibit. A developer must construct an HTTP Request to use the XML API to set a Personal Meeting Room PIN for a given user. Which code completes the code to create the request?

Question

Exhibit

Options

• Axmlhttp.open("GET", "https://cisco.webex.com/WBXService/XMLService");
• Bxmlhttp.open("PATCH", "https://cisco.webex.com/WBXService/XMLService");
• Cxmlhttp.open("PUT", "https://cisco.webex.com/WBXService/XMLService");
• Dxmlhttp.open("POST", "https://cisco.webex.com/WBXService/XMLService");

• A
  11% (3)
• B
  15% (4)
• C
  4% (1)
• D
  70% (19)

Explanation

D is correct because the Cisco Webex XML API uses POST for all operations - reads, writes, and updates alike - because the action type (e.g., SetUser to configure a PIN) is encoded inside the XML request body, not communicated via the HTTP method. The URL https://cisco.webex.com/WBXService/XMLService is a single endpoint that handles every XML API call this way.

A (GET) is wrong because GET cannot carry a request body, and the XML API requires sending an XML payload containing credentials and parameters. C (PUT) and B (PATCH) are REST conventions for full or partial resource replacement, respectively - the Webex XML API is not a REST API and ignores those semantics entirely.

Memory tip: Think of the XML API as a "one-door building" - no matter what you need to do (get info, set a PIN, delete a user), you always knock on the same door the same way (POST to the same URL), and you write your request on a note (the XML body) that explains what you actually want.

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