单项选择题 A System p administrator found a process on the server that should be stopped.  Which of the following commands can be used to list all the signal actions defined for this process（）

单项选择题 For security reasons， an administrator is asked to modify the system to prevent someone from  leaving a terminal logged in.  Which of the following options would enable a five minute timeout for all users（）

单项选择题 A System p administrator needs to document system changes that have occurred recently. The company has a policy of making all possible changes via the smit interface.  Which of the following files would show the commands that have been performed from within smit and their resulting output（）