Linux+ Chapter 09

T/F - Can the top command be used to change the priority of processes?

A system process that is not associated with a terminal is called a(n) ____ process.

T/F - The killall command uses the PID to kill a process.

The ____ option to the ps command displays all processes that do not run on terminals.

T/F - The SIGINT kill signal is the default kill signal used by the kill command.

To display an entire list of processes across all terminals and including daemons, you can add the ____ option to any ps command.

When killing a background job with the kill command, you must prefix the background job IDs by a(n) ____.

T/F - After a process has been started, you can change its priority by using the renice command.

In the output of the ps -l command, the ____ column is the most valuable to systems administrators because it indicates what the process is currently doing.

T/F - A value of 0 for a process priority indicates low priority.

T/F - The ps command is the only command that can view process information.

There are ____ different kill signals that the kill command can send to a certain process.

The ____ kill signal stops a process and then restarts it with the same PID.

The ____ field in a cron table contains the absolute pathname to the command to be executed.

When you append a(n) ____ to a command, the command is run in a background process.

After a background process has been started, it can be moved to the foreground by using the ____ command.

To create or edit a user cron table, you can use the ____ option to the crontab command.

T/F - While a process is waiting for its parent process to release the PID, the process is said to be in a(n) zombie state.

T/F - If the /etc/at.allow and /etc/at.deny files do not exist, only the root user is allowed to schedule tasks using the at daemon.

You can execute ____ main types of Linux commands.

To display a list of at Job IDs, you can specify the ____ option to the at command.

T/F - The init daemon has a PID of 0.

T/F - Most commands such as ls, find, and grep are binary programs that exist on the filesystem until executed.

T/F - Each process can start an unlimited number of other processes.

When there are multiple background processes executing in the shell, the jobs command indicates the most recent one with a(n) ____ symbol.

The ____ kill signal terminates a process by taking the process information in memory and saving it to a file called core on the hard disk in the current working directory.