Lpi 010-160 Online Free Questions

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1. Which of the following commands puts the lines of the file data.csvinto alphabetical order?

a..z data.csv

sort data.csv

abc data.csv

wc -s data.csv

grep --sort data.csv

2. Which of the following examples shows the general structure of a for loop in a shell script?

for *.txt as file => echo $file

for *.txt ( echo $i )

for file in *.txt do echo $i done

for ls *.txt exec {} ;

foreach @{file} { echo $i }

3. Which operator in a regular expression matches the preceding character either zero or one time?

4. The file script.sh in the current directory contains the following content:

#!/bin/bash

echo $MYVAR

The following commands are used to execute this script:

MYVAR=value

./script.sh

The result is an empty line instead of the content of the variable MYVAR. How should MYVAR be set in order to make script.sh display the content of MYVAR?

!MYVAR=value

env MYVAR=value

MYVAR=value

$MYVAR=value

export MYVAR=value

5. What is the return value of a shell script after successful execution?

-1

-255

255

6. Which of the following commands creates the ZIP archive poems.zip containing all files in the current directory whose names end in .txt?

zip *.txt > poems.zip

zcat *.txt poems.zip

zip poems.zip *.txt

zip cfz poems.zip *.txt

cat *.txt | zip poems.zip

7. Which of the following statements are true regarding a typical shell script? (Choose two.)

It has the executable permission bit set.

It starts with the two character sequence #!.

It is located in /usr/local/scripts/.

It is located in /etc/bash/scripts/.

It is compiled into a binary file compatible with the current machine architecture.

8. Which of the following commands extracts the contents of the compressed archive file1.tar.gz?

tar -czf file1.tar.gz

ztar file1.tar.gz

tar -xzf file1.tar.gz

tar --extract file1.tar.gz

detar file1.tar.gz

9. Which of the following commands finds all lines in the file operating-systems.txt which contain the term linux, regardless of the case?

igrep linux operating-systems.txt

less -i linux operating-systems.txt

grep -i linux operating-systems.txt

cut linux operating-systems.txt

cut [Ll] [Ii] [Nn] [Uu] [Xx] operating-systems.txt

10. Which one of the following statements concerning Linux passwords is true?

All passwords can be decrypted using the system administrator's master password.

Passwords may never start with a non-letter.

Users cannot change their password once it has been set.

Passwords are only stored in hashed form.

Passwords may be at most six characters long.

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11. Which of the following programs are web servers? (Choose two.)

Apache HTTPD

Postfix

Curl

Dovecot

NGINX

12. Which of the following Linux Distributions is derived from Red Hat Enterprise Linux?

Raspbian

openSUSE

Debian

Ubuntu

CentOS

13. Which of the following statements is true about Free Software?

It is developed by volunteers only.

It may be modified by anyone using it.

It must always be available free of charge.

It only runs on Linux.

It is only distributed as a compiled binary.

14. How is a new Linux computing instance provisioned in an laaS cloud?

The standard Linux installer has to be run through a remote console.

After buying a Linux distribution, its vendor delivers it to a cloud instance.

The installation has to be prepared in a local virtual machine which is then copied to the cloud.

The cloud hosting organization provides a set of pre-prepared images of popular Linux distributions.

A provider-specific configuration file describing the desired installation is uploaded to the cloud provider.

15. What are the differences between a private web browser window and a regular web browser window? (Choose three.)

Private web browser windows do not allow printing or storing websites.

Private web browser windows do not store cookies persistently.

Private web browser windows do not support logins into websites.

Private web browser windows do not keep records in the browser history.

Private web browser windows do not send regular stored cookies.

16. What is the preferred source for the installation of new applications in a Linux based operating system?

The vendor's version management system

A CD-ROM disk

The distribution's package repository

The vendor's website

A retail store

17. What are the differences between hard disk drives and solid state disks? (Choose two.)

Hard disks have a motor and moving parts, solid state disks do not.

Hard disks can fail due to physical damage, while solid state disks cannot fail.

Solid state disks can store many times as much data as hard disk drives.

/dev/sdais a hard disk device while /dev/ssda is a solid state disk.

Solid state disks provide faster access to stored data than hard disks.

18. Reverse DNS assigns hostnames to IP addresses.

How is the name of the IP address 198.51.100.165 stored on a DNS server?

In the A record for 165.100.51.198.ipv4.arpa.

In the PTR record for 165.100.51.198.in-addr.arpa.

In the RNAME record for 198-51-100-165.rev.arpa.

In the ARPA record for 165.100.51.198.rev.

In the REV record for arpa.in-addr.198.51.100.165.

19. Which of the following types of bus can connect hard disk drives with the motherboard?

The RAM bus

The NUMA bus

The CPU bus

The SATA bus

The Auto bus

20. Members of a team already have experience using Red Hat Enterprise Linux. For a small hobby project, the team wants to set up a Linux server without paying for a subscription.

Which of the following Linux distributions allows the team members to apply as much of their Red Hat Enterprise Linux knowledge as possible?

Ubuntu Linux LTS

Raspbian

Debian GNU/Linux

CentOS

openSUSE

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21. What information can be displayed by top?

Existing files, ordered by their size.

Running processes, ordered by CPU or RAM consumption.

User accounts, ordered by the number of logins.

User groups, ordered by the number of members.

User accounts, ordered by the number of files.

22. Which of the following commands can be used to resolve a DNS name to an IP address?

dnsname

dns

query

host

iplookup

23. Which of the following outputs comes from the command free?

A)

Option A

Option B

Option C

Option D

Option E

24. What is true about the dmesg command? (Choose two.)

It traces the execution of a command and shows each step the program carries out.

It sends messages to the command lines of all current user sessions.

It displays the content of the Linux kernel’s ring buffer.

It immediately outputs all new messages written to the system journal.

It might not display older information because it was overwritten by newer information.

25. Which of the following outputs could stem from the command last?

1 ls 2 cat text.txt 3 logout

Password for user last changed at Sat Mar 31 16:38:57 EST 2018

Last login: Fri Mar 23 10:56:39 2018 from server.example.com

EXT4-fs (dm-7): mounted filesystem with ordered data mode. Opts: (null)

root tty2 Wed May 17 21:11 - 21:11 (00:00)

26. What is the UID of the user root?

-1

255

65536

27. Which permissions are set on a regular file once the permissions have been modified with the command chmod 654 file.txt?

drw-r-xr-

d―wxr-x-

Cwxr-x--x

Crwxrw---x

-rw-r-xr-

28. What is true about the owner of a file?

Each file is owned by exactly one user and one group.

The owner of a file always has full permissions when accessing the file.

The user owning a file must be a member of the file’s group.

When a user is deleted, all files owned by the user disappear.

The owner of a file cannot be changed once it is assigned to an owner.

29. Which of the following permissions are set on the /tmp/ directory?

rwxrwxrwt

------rwX

rwSrw-rw-

rwxrwS--

r-xr-X--t

30. Which command adds the new user tux and creates the user’s home directory with default configuration files?

defaultuser tux

useradd Cm tux

usercreate tux

useradd Co default tux

passwd Ca tux

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31. What information is stored in /etc/passwd? (Choose three.)

The user’s storage space limit

The numerical user ID

The username

The encrypted password

The users default shell

32. Which of the following tar options handle compression? (Choose two.)

-bz

-z

-g

-j

-z2

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