What is Event Bubbling in the JavaScript DOM event handling model?
Option B is correct. Event Bubbling means that when an event occurs on an element, it first runs handlers on that element, then on its parent, and all the way up through ancestors to the root document.
What is the purpose of JSON.parse() in JavaScript web development?
Option C is correct. JSON.parse(text) parses a JSON text string into a native JS object/value. JSON.stringify(value) converts a JS value into a JSON string.
Which keyword is used in JavaScript to catch errors thrown inside a try block?
Option A is correct. JavaScript uses try { ... } catch (error) { ... } blocks for exception handling. Python uses try/except.
In PHP, how must all variable names begin?
Option C is correct. In PHP, variable names always start with a dollar sign $, followed by the variable name (e.g., $var_name).
Which superglobal array in PHP is used to collect data submitted from an HTML form using the HTTP POST method?
Option C is correct. $_POST is an associative array of variables passed to the current script via the HTTP POST method.