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102-500 by Lpi - Page 1 | ExamCademy

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Question 1

Question 2

Question 3

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What option to useradd creates a new user's home directory and provisions it with a set of standard files? (Specify only the option name without any values or parameters.)

Question 4

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What command enables a network interface according to distribution-specific configuration, such as /etc/network/interfaces or /etc/sysconfig/ network-scripts/ifcfg-eth0? (Specify only the command without any path or parameters.)

Question 5

On a Linux workstation, the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

A The local routing information may be corrupted and must be re-validated using a routing protocol.
B One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.
C There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.
D The Linux Kernel Routing Daemon (LKRD) is not running and should be started using its init script or systemd unit.
E DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

Question 6

If neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

A Without additional configuration, all users may create user specific crontabs.
B Without additional configuration, only root may create user specific crontabs.
C The cron daemon will refuse to start and report missing files in the system's logfile.
D When a user creates a user specific crontab the system administrator must approve it explicitly.
E The default settings of /etc/crond.conf define whether or not user specific crontabs are generally allowed or not.

Question 7

Given the following user's crontab entry:
15 14 * * 1-5 /usr/local/bin/example.sh
When will the script /usr/local/bin/example.sh be executed?

A At 14:15 local time, January till May.
B At 15:14 local time, 1st to 5th day of month.
C At 14:15 local time, February till June.
D At 14:15 local time, 1st to 5th day of month.
E At 14:15 local time, Monday to Friday

Question 8

Which of the following commands puts the output of the command date into the shell variable mydate?

A mydate="date"
B mydate="exec date"
C mydate="$((date))"
D mydate="$(date)"
E mydate="${date}"

Question 9

Which of the following fields can be found in the /etc/group file? (Choose two.)

A The home directory of the group.
B The list of users that belong to the group.
C The name of the group.
D The default group ACL.
E The description of the group.

Question 10

Which file contains the data of the last change of a user's password?

A /etc/gshadow
B /etc/passwd
C /etc/pwdlog
D /var/log/shadow
E /etc/shadow

Question 11

How can a specific user be prevented from scheduling tasks with at?

A By adding the specific user to the /etc/at.allow file.
B By adding the specific user to the [deny] section in the /etc/atd.conf file.
C By adding the specific user to the nojobs group.
D By adding the specific user to the /etc/at.deny file.
E By executing the atd --deny [user] command.

Question 12

Which of the following commands display the number of bytes transmitted and received via the eth0 network interface? (Choose two.)

A route -v via eth0
B ip stats show dev eth0
C netstat -s -i eth0
D ifconfig eth0
E ip -s link show eth0

Question 13

Which of the commands below might have produced the following output?

Question Image

A dig -t mx www.example.org
B dig www.example.org
C dig -t ns www.example.org
D dig -t a www.example.org
E dig -t soa www.example.org

Question 14

What is true regarding public and private SSH keys? (Choose two.)

A For each user account, there is exactly one key pair that can be used to log into that account.
B The private key must never be revealed to anyone.
C Several different public keys may be generated for the same private key.
D To maintain the private key's confidentiality, the SSH key pair must be created by its owner.
E To allow remote logins, the user's private key must be copied to the remote server.

Question 15

Which of the following are syslog facilities? (Choose two.)

A local5
B accounting
C mail
D postmaster
E remote

Question 16

What information is provided by the echo $$ command?

A The process ID of the current shell.
B The process ID for the following command.
C The process ID of the last command executed.
D The process ID of the last command which has been placed in the background.
E The process ID of the echo command.

Question 17

Which of the following protocols is related to the term open relay?

A SMTP
B POP3
C NTP
D IMAP
E LDAP

Question 18

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What is the top-level directory which contains the configuration files for CUPS? (Specify the full path to the directory.)

Question 19

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The presence of what file will temporarily prevent all users except root from logging into a system? (Specify the full name of the file, including path.)

Question 20

What is the systemd journal stored?

A /var/jlog/ and /var/jlogd/
B /proc/log/ and /proc/klog/
C /run/log/journal/ or /var/log/journal/
D /var/log/syslog.bin or /var/log/syslog.jrn
E /etc/systemd/journal/ or /usr/lib/systemd/journal/

Question 21

Which of the following files is not read directly by a Bash login shell?

A ~/.bashrc
B ~/.bash_profile
C ~/.bash_login
D ~/.profile
E /etc/profile

Question 22

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What command list the aliases defined in the current Bash shell? (Specify only the command without any path or parameters.)

Question 23

Given the following excerpt of the sudo configuration:
jane ANY=NOPASSWD: /bin/kill, /bin/id, PASSWD: /sbin/fdisk
Which of the following statements are true? (Choose three.)

A Jane can run /bin/id only after specifying her password.
B Jane can run /sbin/fdisk after specifying root's password.
C Jane can run /sbin/fdisk after specifying her password.
D Jane can run /bin/kill without specifying a password.
E Jane can run /bin/id without specifying her password.

Question 24

Which of the following comparison operators for test work on elements in the file system? (Choose two.)

A -z
B -eq
C -d
D -f
E -lt

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Which of the following connection types, as seen in nmcli connection show, may exist in NetworkManager? (Choose three.)

A tcp
B ethernet
C wifi
D ipv6
E bridge

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Which parameter of the ssh command specifies the location of the private key used for login attempts? (Specify only the option name without any values or parameters.)