Users are unable to run applications stored on the /app1 mount point. A Linux systems administrator is investigating the issue and obtains the following output from the /etc/fstab file: Permissions…

The `noexec` mount option explicitly prevents any executable binaries or scripts from being run from the filesystem where it is applied. Since users are unable to run applications but permissions are verified as correct, removing `noexec` from the `/app1` mount point will resolve the issue.

`nobarrier` is a mount option related to disk write barriers for data integrity in journaling filesystems and does not affect the ability to execute applications.

`noatime` is a performance optimization that disables updating file access times but has no impact on whether files can be executed.

`noadirtime` (assuming `nodiratime`) disables updating directory access times, which is a performance optimization that does not prevent application execution.