Free LX0-104 Exam Dumps PDF Preview

Question 1

Multiple choice

Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose

TWO correct answers.)

A
--from=
B
--since=
C
--until=
D
--upto=
E
--date=

Reveal answer details Close answer details

Correct answersB, C

Question 2

Single choice

What of the following statements is true regarding a display manager?

A
A display manager handles remote X11 logins only and has no purpose on a system that is not attached to a network.
B
The display manager is configured in the X11 configuration file xorg.conf.
C
There is only one display manager X11Dm that must be started on all systems running X11.
D
After system startup, the display manager handles the login of a user.
E
Without a display manager, no graphical programs can be run.

Reveal answer details Close answer details

Correct answerD

Question 3

Fill in the blank

FILL BLANK

What command displays all aliases defined in the current shell? (Specify the command without any path information)

Reveal answer details Close answer details

Accepted answeralias -or-alias -p

Question 4

Single choice

Which of the following commands will convert files from one character encoding to another?

A
convert
B
enc2utf
C
iconv
D
transcode

Reveal answer details Close answer details

Correct answerC

Question 5

Single choice

Which of the following actions prevents a specific user form scheduling tasks using at or batch?

A
Add the specific user to the /etc/ at.allow file.
B
Add the specific user to the [deny] section in the /etc/std.conf file.
C
Add the specific user to the /etc/at.deny file.
D
Add the specific user to the nojobs group.
E
Run atd --deny followed by the name of the specific user.

Reveal answer details Close answer details

Correct answerC

Question 6

Multiple choice

Which of the following are syslog facilities? (Choose TWO correct answers.)

A
local7
B
mail
C
advanced
D
postmaster
E
remote

Reveal answer details Close answer details

Correct answersA, B

Question 7

Multiple choice

Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)

A
ssh --port 2222 example.com
B
ssh -p 2222 example.com
C
ssh -o Port=2222 example.com
D
ssh -o GatewayPort=2222 example.com
E
ssh example.com:2222

Reveal answer details Close answer details

Correct answersB, C

Question 8

Single choice

What is the purpose of the command mailq?

A
It fetches new emails from a remote server using POP3 or IMAP.
B
It is a multi-user mailing list manager.
C
It is a proprietary tool contained only in the qmail MTA.
D
It queries the mail queue of the local MTA.
E
It is a command-line based tool for reading and writing emails.

Reveal answer details Close answer details

Correct answerD

Question 9

Multiple choice

When issuing the command ifconfig eth0 192.168.1.20/24 up, which of the following happens? (Choose two correct answers.)

A
The address 192.168.1.20 is associated with the interface eth0.
B
A network route to 192.168.1.0 with the netmask 255.255.255.0 pointing directly to eth0 is created.
C
192.168.1.1 is probed for router functionality and, in case of success, it is added to the list of default routers.
D
The addresses from 192.168.1.20 to 192.168.1.24 are activated on the interface eth0.
E
If eth0 was configured with a previous IP address, it is retained an addition to adding the new address.

Reveal answer details Close answer details

Correct answersA, B

Question 10

Multiple choice

Which of the following are operators used for comparison by the test command? (Choose two correct answers.)

A
equals
B
=
C
-is
D
-eq
E
null

Reveal answer details Close answer details

Correct answersB, D

Question 11

Multiple choice

Which of the following is true regarding the mail queue of a mail server? (choose two correct answers.)

A
The messages in the queue must be readable by all users as the queue may contain messages for several users.
B
According to the Filesystem Hierarchy Standard (FHS) the queue is located at /var/mail/spool.
C
There is exactly one mail queue per user which holds all new messages for that user before they are moved to other folders by the user's mail client.
D
The queue holds all messages that are processed by the mail server but have not yet been completely delivered.
E
The content of the mail queue can be queried by the command mailq.

Reveal answer details Close answer details

Correct answersD, E

Question 12

Fill in the blank

FILL BLANK

With IPv6, how many bits have been used for the interface identifier of an unicast address? (Specify the
number using digits only.)

Reveal answer details Close answer details

Accepted answer64

Question 13

Multiple choice

Which of the following details can be found in an entry of a user specific crontab? (Choose two correct answers.)

A
The verbal description of the job.
B
The syslog facility to where the output of the job should be sent.
C
The time when the cron job should run.
D
The command that should be started by the cron job.
E
The name of the user which should run the job.

Reveal answer details Close answer details

Correct answersC, D

Question 14

Single choice

Where are user specific crontabs stored?

A
In the database file /etc/crontab.db which is shared by all users.
B
As individual per-user files within /var/spool/cron.
C
As individual per-user files in /etc/cron.user.d.
D
In the .crontab file in the user's home directory.
E
In the file /var/cron/user-crontab which is shared by all users.

Reveal answer details Close answer details

Correct answerB

Question 15

Multiple choice

Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)

A
substitute
B
nameserver
C
search
D
lookup
E
method

Reveal answer details Close answer details

Correct answersB, C

Question 16

Single choice

How does the ping command work by default?

A
It sends a UDP packet to port 0 of the remote host and waits to receive a UDP error response in return.
B
It sends an ARP request to a remote host and waits to receive an ARP response in return.
C
It sends a TCP SYN packet to a remote host and waits to receive an TCP ACK response in return.
D
It sends a broadcast packet to all hosts on the net and waits to receive, among others, a response from the target system.
E
It sends an ICMP Echo Request to a remote host and waits to receive an ICMP Echo Response in return.

Reveal answer details Close answer details

Correct answerE

Question 17

Fill in the blank

FILL BLANK

Which command is used to set the hostname of the local system? (Specify ONLY the command without any path or parameters.)

Reveal answer details Close answer details

Accepted answerhostname

Question 18

Single choice

Which of the following is a valid IPv6 address?

A
2001:db8:3241::1
B
2001::db8:4581::1
C
2001:db8:0g41::1
D
2001%db8%9990%%1
E
2001. db8.819f..1

Reveal answer details Close answer details

Correct answerA

Question 19

Single choice

Which of the following files is consulted when programs like netstat try to match port numbers to names?

A
/etc/networks
B
/etc/portmapper
C
/etc/protocols
D
/etc/resolv.conf
E
/etc/services

Reveal answer details Close answer details

Correct answerE

Question 20

Single choice

Given the following routing table:

Why does the command route add default gw 192.168.1.1 fail?

A
Because there is no route to 192.168.1.1.
B
Because only one route can exist at a time.
C
Because there is already a default route.
D
Because default routes can not be set manually.
E
Because default routes must be set with ifconfig

Reveal answer details Close answer details

Correct answerA

Question 21

Single choice

With syslog, what is a facility?

A
Facilities are different connection interfaces to syslog. Each facility has its own device in /dev/syslog/.
B
From syslog's point of view, each Unix process that issues messages is a facility.
C
Facilities describe the severity of a log message such as emerg or info.
D
When using remote logging, the hostname of the server that generated a message is called facility.
E
Facilities describe categories or groups of messages such as mail or auth.

Reveal answer details Close answer details

Correct answerE

Question 22

Multiple choice

What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

A
route del default
B
ifconfig unset default
C
netstat -r default
D
ip route del default
E
sysctl ipv4.default_gw=0

Reveal answer details Close answer details

Correct answersA, D

Question 23

Multiple choice

Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.)

A
New name servers may be added to the resolver configuration.
B
Network interfaces may become active or inactive.
C
The routing table may change.
D
IP addresses may change.
E
The system's host name may change.

Reveal answer details Close answer details

Correct answersB, C, D

Question 24

Single choice

What is NTP?

A
A more secure protocol replacement for FTP.
B
A protocol for synchronizing time on computers.
C
A routing aid for finding next hops on a network.
D
A simple tunneling protocol for computers behind firewalls.

Reveal answer details Close answer details

Correct answerB

Question 25

Single choice

Which of the following commands can be used to associate open TCP ports with the processes that opened the ports?

A
ptrace
B
strace
C
debug
D
nessus
E
lsof

Reveal answer details Close answer details

Correct answerD

Question 26

Fill in the blank

FILL BLANK

Which command, depending on its options, can display the open network connections, the routing tables, as well as network interface statistics. (Specify ONLY the command without any path or parameters.)

Reveal answer details Close answer details

Accepted answernetstat -or- /bin/netstat -or-ss -or- /usr/bin/ss

Question 27

Single choice

What is the difference between the commands test -e path and test -f path?

A
They are equivalent options with the same behaviour.
B
The -f option tests for a regular file. The -e option tests for an empty file.
C
Both options check the existence of the path. The -f option also confirms that it is a regular file.
D
The -f option tests for a regular file. The -e option tests for an executable file.

Reveal answer details Close answer details

Correct answerC

Free LX0-104 Exam Dumps Preview

CompTIA Linux+ [Powered by LPI] 2

PREVIEW CONTENTS · 3 VOLUMES

QUESTION 1

QUESTION 2

QUESTION 3

QUESTION 4

QUESTION 5

QUESTION 6

QUESTION 7

QUESTION 8

QUESTION 9

QUESTION 10

QUESTION 11

QUESTION 12

QUESTION 13

QUESTION 14

QUESTION 15

QUESTION 16

QUESTION 17

QUESTION 18

QUESTION 19

QUESTION 20

QUESTION 21

QUESTION 22

QUESTION 23

QUESTION 24

QUESTION 25

QUESTION 26

QUESTION 27

VOL	TYPE	QUESTIONS
1	Single choice	13
2	Multiple choice	10
3	Fill in the blank	4