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LPI 201-450 Practice Test - Questions Answers, Page 2

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In this example output, which descriptions match the purpose of the free, buff and cache columns?

(Choose THREE correct answers.)

# vmstat 1 100

procs -----------memory---------- ---swap-- -----io---- --system-- ----cpu----

r b swpd free buff cache si so bi bo in cs us sy id wa

0 0 0 282120 134108 5797012 0 0 0 2 0 0 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 359 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1117 577 0 0 100 0

0 0 0 282120 134108 5797012 0 0 0 0 1007 366 0 0 100 0

A.
Used swap space
A.
Used swap space
Answers
B.
RAM available for filesystem buffers
B.
RAM available for filesystem buffers
Answers
C.
Available free RAM
C.
Available free RAM
Answers
D.
RAM used for buffers
D.
RAM used for buffers
Answers
E.
RAM used for filesystem cache
E.
RAM used for filesystem cache
Answers
Suggested answer: C, D, E

In the following output, what is the 5 minute load average for the system?

# uptime

12:10:05 up 18 days, 19:00, 2 users, load average: 0.47, 24.71, 35.31

A.
0.47
A.
0.47
Answers
B.
24.71
B.
24.71
Answers
C.
35.31
C.
35.31
Answers
D.
There is no 5 minute interval. It is some value between 0.47 and 24.71.
D.
There is no 5 minute interval. It is some value between 0.47 and 24.71.
Answers
E.
There is no 5 minute interval. It is some value between 24.71 and 35.31.
E.
There is no 5 minute interval. It is some value between 24.71 and 35.31.
Answers
Suggested answer: B

Which of the following commands will provide the PIDs of the processes sorted by which are using the most CPU cycles on the Linux system?

A.
top
A.
top
Answers
B.
uptime
B.
uptime
Answers
C.
ps aux
C.
ps aux
Answers
D.
vmstat
D.
vmstat
Answers
E.
freemem
E.
freemem
Answers
Suggested answer: A

Which command will report information on memory usage, paging and block input/output?

A.
free
A.
free
Answers
B.
memshow
B.
memshow
Answers
C.
ps
C.
ps
Answers
D.
top
D.
top
Answers
E.
vmstat
E.
vmstat
Answers
Suggested answer: E

When is historical data of resource usage important? (Select THREE correct answers.)

A.
Predicting when resources will need to be increased.
A.
Predicting when resources will need to be increased.
Answers
B.
Selecting a computer vendor.
B.
Selecting a computer vendor.
Answers
C.
Identifying processes killed during out of memory occurrences.
C.
Identifying processes killed during out of memory occurrences.
Answers
D.
Diagnosing capacity problems.
D.
Diagnosing capacity problems.
Answers
E.
Troubleshooting a software problem.
E.
Troubleshooting a software problem.
Answers
Suggested answer: A, D, E

What option in the collectd configuration file is required in order to define what to start monitoring?

A.
LoadModule
A.
LoadModule
Answers
B.
Module
B.
Module
Answers
C.
Plugin
C.
Plugin
Answers
D.
LoadPlugin
D.
LoadPlugin
Answers
Suggested answer: D

Which of the following terms are used to describe 3.x kernel releases? (Choose TWO correct answers.)

A.
beta
A.
beta
Answers
B.
final
B.
final
Answers
C.
longterm
C.
longterm
Answers
D.
prerelease
D.
prerelease
Answers
E.
stable
E.
stable
Answers
Suggested answer: C, E

According to the Filesystem Hierarchy Standard (FHS), what is the path to the Linux kernel source and may be a symbolic link to the real Linux source code? (Please specify the full path with no version information.)

A.
/usr/src/linux,/usr/src/linux/
A.
/usr/src/linux,/usr/src/linux/
Answers
Suggested answer: A

After installing a compiled kernel, it can not find any modules that are needed to be loaded. What make target was likely missed while installing the kernel?

A.
make modules_install, modules_install
A.
make modules_install, modules_install
Answers
Suggested answer: A

A new kernel version needs to be compiled to use a new feature. If the old kernel configuration file is available, which make target creates a configuration file for the new kernel based on the configuration of the old kernel?

A.
oldconfig, make oldconfig
A.
oldconfig, make oldconfig
Answers
Suggested answer: A
Total 161 questions
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