Linux - Chapter 9

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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?

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

What kill level signal cannot be trapped?

9

Which of the following statements is true?

A + B + C

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

False

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

True

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

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

ps

The killall command terminates _____________.

All instances of a process with the same name.

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

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

Every process has a process ID and a__________.

Parent process ID

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

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

There is a question mark in the TTY column

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

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.


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