Module 9 Live Virtual Machine Labs 1-4

Question 1

lab 9-1

Which directory stores the cron configuration file?

/etc/crond
/etc/cron
/etc/
/etc/mail

Answer 1

/etc/

Question 2

In context of cron, which of the following is not the correct directory name?

/etc/cron.hourly/
/etc/cron.daily/
/etc/cron.monthly/
/etc/cron.yearly/
/etc/cron.weekly/

Answer 2

/etc/cron.yearly/

Question 3

Which command is used to schedule jobs?

cron
schedule
atq
at

Answer 3

at

Question 4

Which command is equivalent to the atq command?

at -l
at -c
at -f
at -a

Answer 4

at -l

Question 5

Which command is equivalent to the atrm command?

at -c
at -l
at -a
at -d
at -f

Answer 5

at -d

Question 6

lab 9-2

Which of the following attributes are associated with a process? [Choose all that apply.]

Current directory PWD
Parent process ID
Process ID
File descriptor table

Answer 6

Process ID
Parent process ID
Current directory PWD
File descriptor table

Question 7

You want to kill all process IDs of a specific process with a single command. Which command should you use?

sleep
killall
pidof
kill

Answer 7

killall

Question 8

Which of the following is used to create a background process?

%
$
#
@
&

Answer 8

&

Question 9

Which command should you run to list the background processes?

pid
pidof
jobs
ps

Answer 9

jobs

Question 10

Which command will bring a background process in foreground?

fg
foreground
foreg
fground

Answer 10

fg

Question 11

lab 9-3

The ________ file system is a virtual file system that is available in CentOS.

/tmp
/home
/proc
/swap

Answer 11

/proc

Question 12

To view the virtual regions being used, you should use the ________ command.

maps
top
ps
vmstat

Answer 12

maps

Question 13

To displays the uptime of a process, you should use the ______ command.

top
vmstat
uptime
ps
maps

Answer 13

uptime

Question 14

To display the processes for the current shell, you should use the ____ command.

top
vmstat
maps
ps
uptime

Answer 14

ps

Question 15

Which parameter can you use with the ps command to display the active processes? [Choose all that apply.]

-n
-A
-m
-l
-e

Answer 15

-A
-e

Question 16

lab 9-4

Which command will list all active processes that are running on a Linux system?

ps
top
nice
list

Answer 16

top

Question 17

Which command will list the processes for a specific user?

ps
list
nice
top

Answer 17

ps

Question 18

Which command should be used to change the priority of a process?

list
nice
ps
top

Answer 18

nice

Question 19

Which command is used to change the priority of an active process?

renice
ps
top
nice

Answer 19

renice

Question 20

What is the default priority of a process?

-19
20
19
-20
0

Answer 20

0