chapter 9
When killing a backround job with the kill command you must prefix by using a __________
%
When there are multiple backround processes executing in the shell, the jobs command indicates the most recent one with a _______ symbol
+
To display an entire list of processes across all terminals and including daemons you can add the ____ option to any ps command
-e
Processes are started with a nice value of _______ by default
0
There are _______ different kill signals that the kill command can send to a certain process
64
Does a negative nice value give a process a greater chance of a lower priority
False
The init daemon has a PID of 0
False
The killall command uses the PID to kill a process
False
The ps command is the only command that can view process information
False
The sigint kill signal is the default kill signal used by the kill command
False
Can the sigkill kill signal be trapped by a process
False, no
Can the top command be used to change the priority of processes
False, no
If you send a kill to a process that has children are the child processes terminated?
False, no
Most command such as ls, find, and grep are binary programs that exist on the filesystem until executed
True
While a process is waiting for its parent process to release the PID, the process is said to be in a zombie state.
True
A system process that is not associated with a terminal is called a _____ process
daemon
In the output of the ps -1 command the _____ column is the most valuable to systems administrators because it indicates what the process is currently doing
process state
The _______ kill signal terminates a process by taking the process info in memory and saving it to a file called core on the hard disk in the current working directory
sigquit
The ______ field in a cron table contains the absolute pathname to the command being executed
sixth
You can execute _______ main types of Linux commands
three
each process can start an unlimited number of other processes
true
The _______ option to the ps command displays all proceses that do not run on terminals.
x
can a parent have multiple parent processes
No
