To answer this question, you need to understand how session cookies work and how they are typically handled upon log-out.
Option A) Update the time - This option is incorrect. Updating the time of the session cookies would not be the appropriate action to take upon log-out. The purpose of updating the time is usually to extend the session duration while the user is actively using the application.
Option B) Clear them - This option is correct. When a user logs out of an application, it is common practice to clear or delete the session cookies associated with that user's session. This ensures that the user's session information is no longer stored on the client-side, providing an added level of security and preventing unauthorized access to the user's account.
Option C) Update the header - This option is incorrect. Updating the header is not the appropriate action to take upon log-out in relation to session cookies. The header typically contains information about the request and response, but it does not directly relate to managing session cookies.
Option D) Store IP - This option is unrelated to how the application should deal with session cookies upon log-out. Storing IP addresses is a separate concept and is typically done for purposes such as tracking user activity or implementing security measures. It does not directly pertain to the management of session cookies upon log-out.
Therefore, the correct answer is B) Clear them. This option is correct because clearing the session cookies upon log-out ensures that the user's session information is no longer stored on the client-side.