I understand your interest in AJAX technology. An AJAX query typically refers to the process of sending an asynchronous HTTP request from a web page to a server. This allows the page to update dynamically without needing to refresh the entire page. Here's a brief example of an AJAX query using vanilla JavaScript: var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { // Handling the response from the server console.log(this.responseText); } }; xhttp.open(GET url-to-server-endpoint true); xhttp.send(); In this example when the `xhttp.send()` method is called it initiates the asynchronous request to the server. Upon receiving a response the provided callback function processes the data. Real-world uses of AJAX queries include fetching data from a server submitting form data without refreshing the page and updating parts of a webpage dynamically. If you have specific scenarios or code snippets you'd like to discuss feel free to provide more details!