Which of the following shell commands specifies permission bits not to allow?

Which of the following shell commands specifies the access permissions of the process to run as if it had been started by its owner?

Which of the following shell commands specifies the access permissions of the process to run as if it had been started by its group?

What is characterized by the rule: the 1 bits of it describe which part of the address is the network part, and the 0 bits describe which part represents hosts on the network?

What does the first symbol in file permission note for?

Which of the commands is an alternative to the command pkg_delete?

Which of the symbols shows that the permission to write is granted?

Which of the symbols shows that the permission to execute is granted?

Which of the symbols shows that the permission for the file is not granted?

What means a long sequence of high level bits while asynchronous communication?

Which of tar parameters specifies that the next parameter is the name of the archive file?