Chapter 13 Exam

Question 1

When you execute the dmesg command, the system displays messages that are generated by the kernel.
True or False?

True
False

Answer 1

True

Question 2

The Linux kernel mounts the following pseudo-filesystems to provide access to information about hardware devices connected to the system:
(choose two)

/devices
/proc
/info
/sys

Answer 2

/proc

/sys

Question 3

The /proc directory contains a subdirectory for each process present on the system.
True or False?

True
False

Answer 3

True

Question 4

The Process ID (PID) of the init process is:

0
1
100
varies

Answer 4

1

Question 5

The process (ps) command shows only processes running in the current shell by default.
True or False?

True
False

Answer 5

True

Question 6

The following system load averages are displayed by the top command:
(choose three)

15 minute
1 minute
10 minute
5 minute

Answer 6

15 minute
1 minute
5 minute

Question 7

The free command outputs statistics about:

CPU usage
Software usage
Memory usage
Disk usage

Answer 7

Memory usage

Question 8

What directory typically contains log files?

/proc/loc
/log
/usr/log
/var/log

Answer 8

/var/log

Question 9

Which log file contains messages regarding authentication and authorization?

secure
dmesg
syslog
messages

Answer 9

secure

Question 10

All log files contain only text data.
True or False?

True
False

Answer 10

False

Question 11

A load average of 1.0 always means the system is fully loaded.
True or False?

True
False

Answer 11

False

Question 12

A command that will continuously update statistics about running processes:

tail
head
top
Bottom

Answer 12

top

Question 13

Which of the following is a valid Linux option style for Traditional Unix:

two dashes (–)
slash (/)
no dash
a single dash (-)

Answer 13

a single dash (-)

Question 14

Which file contains the information passed to the kernel at boot time?

/proc/kargs
/proc/kopts
/proc/cmdline
/proc/kernel

Answer 14

/proc/cmdline

Question 15

To make changes permanent for kernel parameter files found under /proc/sys, the following file can have entries added to it:

/etc/sysinfo.conf
/etc/procctl.conf
/etc/sysctl.conf
/etc/procsys.conf

Answer 15

/etc/sysctl.conf

Question 16

The /var directory has files that change over time.
True or False?

True
False

Answer 16

True

Question 17

Information about the init process can be found in the /proc/1 directory.
True or False?

True
False

Answer 17

True

Question 18

Which of the following commands will allow you to view all processes on the system?
(choose two)

ps -ef
ps
ps -A
ps aux
ps -eLf

Answer 18

ps -ef

ps aux

Question 19

The logging daemon on recent Linux distributions based on systemd is called:

klogd
journald
rsyslogd
syslogd

Answer 19

journald

Question 20

What does the acronym FHS stand for among the the standards supported by the Linux Foundation?

Filesystem Hierarchy Standard
File Hierarchy Standard
Filesystem Hierarchy Structure

Answer 20

Filesystem Hierarchy Standard

Question 21

Which directory is the root of the filesystem?
/sys
/root
/
/home
/var

Answer 21

/

Question 22

The sbin directories are primarily intended to be used by the root user.
True or False?

True
False

Answer 22

True