CompTIA Linux+ Chapter 9

Every process has a process ID and a_______.

parent process ID

Which command entered without arguments is used to display a list of processes running in the current shell?

ps

Which of the following commands will most likely increase the chance of a process receiving more time slices?

renice -12

The at command is used to _______________.

schedule processes to run at a single instance in the future

Which command is used to gain real-time information about processes running on the system with the most processor-intensive processes listed at the beginning of the list?

top

Nice values are used to affect process priorities using a range between _____________.

-20 and 19

Where are individual user tasks scheduled to run with the cron daemon stored on a Fedora system?

/var/spool/cron/(the user's login name)

What kill level signal cannot be trapped?

9

As daemon processes are not associated with terminals, you must use the -e switch with the ps command to view them. True or False?

False

To kill a process running in the background, you must place a % character before its process ID. True or False?

False

Which of the following statements is true? (Choose all that apply.)

If /etc/at.allow exists, only users listed in it can use the at command. If /etc/cron.allow exists, only users listed in it can use the cron command. If /etc/cron.deny exists and /etc/cron.allow does not exist, any user not listed in /etc/cron.deny can use the cron command.

When you run the ps command, how are daemon processes recognized?

There is a question mark in the TTY column.

How can you bypass the wait function and send a user process to the background?

You can use the Ctrl+z key combination and the bg command.

What command is used to view and modify user jobs scheduled to run with cron?

crontab

What is the name given to a process not associated with a terminal?

daemon process

The term used to describe a process spawning or initiating another process is referred to as_____.

forking

Which process will always have a PID of 1 and a PPID of 0?

init

A runaway process that is faulty and consuming mass amounts of system resources ________.

is a rogue process

Which command can be used to see processes running in the background?

jobs

The killall command terminates _________.

all instances of a process with the same name