To answer this question, we need to understand the concept of temporary files and their handling.
Temporary files are commonly used in web development for tasks such as storing temporary data or caching data for a short period of time. However, it is important to handle temporary files securely to ensure the protection of sensitive data and prevent any security vulnerabilities.
Let's go through each option to understand why it is correct or incorrect:
Option A) Should be placed securely in a folder called "temp" in the web root - This option is incorrect. Placing temporary files in a folder called "temp" in the web root is not a secure practice. The web root is accessible to the public, and storing temporary files in this location may expose them to unauthorized access or potential security risks.
Option B) Can be placed anywhere in the web root as long as there are no links to them - This option is incorrect. Placing temporary files anywhere in the web root is not recommended, even if there are no links to them. Storing files in the web root can make them accessible to the public, and this can pose a security risk.
Option C) Should be completely removed from the server - This option is correct. It is best practice to completely remove temporary files from the server after they have served their purpose. Keeping temporary files on the server can increase the risk of unauthorized access or misuse of sensitive data.
Option D) Can be placed anywhere after changing the extension - This option is incorrect. Changing the extension of a file does not necessarily make it secure. The location and proper handling of temporary files are more important for security.
Therefore, the correct answer is C) Should be completely removed from the server. This option is correct because it aligns with best practices for handling temporary files to ensure data security.