Final answer:
Page locking prevents content modifications but allows for frame updates, ensuring data integrity while enabling dynamic page changes.
Step-by-step explanation:
In computer science, when we talk about a page being 'locked', it typically refers to preventing any modifications or updates to that page. However, even if a page is locked, the page currently stored in a frame may still be replaced. This is because the locking typically applies to the content of the page itself, but not the frame that contains it.
For example, imagine a website with a navigation bar on the left and a main content area on the right. If the current page in the main content area is locked, it means you can't modify its content, but you can still navigate to a different page and have that new page displayed in the frame.
So, in summary, locking a page typically restricts modifications to the content of that page, but it doesn't prevent the possibility of replacing the page currently displayed in a frame.