Angular Interview Practice

The assertion that attributes can be dynamically changed via JavaScript is accurate because JavaScript provides a robust way to interact with and manipulate the Document Object Model (DOM). This means that once a webpage is loaded, developers can use JavaScript to alter HTML attributes on elements at any time. For instance, one could change the `src` attribute of an image to update its source dynamically or modify the `class` attribute to change the styling based on user interactions. This capability enhances interactivity and responsiveness within web applications.

The other statements are not valid:

- While attributes are typically expected to have values, there are certain boolean attributes in HTML, such as `disabled` or `checked`, where the presence of the attribute alone suffices to denote a truthy state, hence they don't require a value.

- Not all attributes are restricted to being changed; most can be modified using scripting, so there is a broader range of attributes that can be altered beyond just "certain" ones.

- Attributes can indeed be set or altered at any point during the page lifecycle, not exclusively during the initial load, emphasizing the dynamic nature of web content.