Which of the following is true about the output -rw-rw-r-- bart simpson file1?

The output you've provided displays the permission settings for the file named "file1." Analyzing the permission string "-rw-rw-r--" breaks down as follows:

1. The first character indicates the type of file. The "-" suggests that this is a regular file.
2. The next three characters "rw-" show the permissions for the user (in this case, "bart"). The user has read (r) and write (w) permissions, but not execute (-).

3. The following three characters "rw-" indicate the permissions for the group (in this case, "simpson"). The group also has read (r) and write (w) permissions, but not execute (-).
4. The final three characters "r--" signify the permissions for others. They have read (r) access only and are not allowed to write (-) or execute (-).

Thus, the statement regarding others being able to view the contents of the file yet lacking the ability to execute or write is accurate. They indeed have read access (which allows them to view), but they cannot modify or execute the file.

Considering other statements:

• User bart has read and write permissions but lacks execute permissions, making the claim that user bart can read,