What permission level allows for viewing a file and executing it?

The permission level that allows for both viewing a file and executing it is indeed "Allow- Read and Execute." When a user is granted this permission level, they can access the file to see its contents (read) and also run the program or script if the file is executable.

This combination of permissions is essential for scenarios where a user needs to not only view the information contained in the file but also perform an action with it, such as executing a program or a script which may perform tasks or operations associated with that file.

On the other hand, the other options focus on more limited access levels. "Allow- Write" permits modifications to a file but does not provide the right to view or execute it. "Allow- Read" allows users to view the file but does not enable them to execute it, while "Allow- Modify" permits writing and reading but does not explicitly guarantee the ability to execute, including situations where the file might not be executable at all. Therefore, "Allow- Read and Execute" is the correct choice for allowing both viewing and execution capabilities.