Final answer:
A persistent cookie is indeed a data file that remains on the client's machine for a set period of time, surviving browser sessions and allowing websites to remember user information or settings.
Step-by-step explanation:
True: The statement that data remaining on the client machine for a period of time describes a persistent cookie is accurate. Persistent cookies, also known as permanent or stored cookies, are created with an expiration date or duration that allows them to survive after the browser is closed. They are used by websites to remember information or settings for a user for more than one session. Different from session cookies, which are deleted as soon as the browser is closed, persistent cookies enable features such as auto-login on a subsequent visit to the site. For example, when you select 'Remember me' on a website's login page, a persistent cookie is likely being used to ensure you don't have to log in every time you visit that site.