Lpi 102-500 Premium Exam Engine pdf - Download Free Updated 195 Questions
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Topic 3: Administrative Tasks
- Automation of system administration tasks by scheduling jobs – The examinees should have some underlying knowledge and skills in using systemmd and cron timer units to easily run jobs at specific times and also at regular intervals;
- Localisation and internationalisation – You need to know about the importance of LANG=C and how it can be useful during scripting. Besides that, you should understand how to localize a system in a language other than English.
- Manage group and user accounts as well as related system files – The learners should know how to suspend, change, add, and remove user accounts;
Security
Like any other security concept, Linux security covers the objectives as follow:
- The usage of sudo and its implementation;
- Grasp the GnuPG features & SSH port tunnels as well as their usage
- Setting up host security;
- Performing security administration tasks;
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NEW QUESTION 55
What command should be used to print a listing of email in the system's mail queue?
- A. sendmail -l
- B. lpq
- C. mlq
- D. mailq
Answer: D
NEW QUESTION 56
Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)
Answer:
Explanation:
crontab
NEW QUESTION 57
Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)
Answer:
Explanation:
/etc/at.deny
NEW QUESTION 58
What is the systemd journal stored?
- A. /proc/log/ and /proc/klog/
- B. /etc/systemd/journal/ or /usr/lib/systemd/journal/
- C. /run/log/journal/ or /var/log/journal/
- D. /var/log/syslog.bin or /var/log/syslog.jrn
- E. /var/jlog/ and /var/jlogd/
Answer: C
NEW QUESTION 59
FILL BLANK
Which command included in NetworkManager is a curses application which provides easy acces to the NetworkManager on the command line? (Specify only the command without any path or parameters.)
Answer:
Explanation:
nmtui
NEW QUESTION 60
Which of the following commands can remove a user from a group?
- A. usergroups
- B. passwd
- C. grouprm
- D. groupmod
- E. usermod
Answer: E
NEW QUESTION 61
FILL BLANK
Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)
Answer:
Explanation:
crontab
NEW QUESTION 62
Which of the following commands shows the current color depth of the X Server?
- A. cat /etc/X11
- B. xcdepth
- C. xcolordepth
- D. xcd
- E. xwininfo
Answer: E
NEW QUESTION 63
What of the following can be done by the command ifconfig? (Choose TWO correct answers.)
- A. Change the netmask used on a network interface.
- B. Allow regular users to change the network configuration of a network interface.
- C. Specify which network services are available on a network interface.
- D. Specify the kernel module to be used with a network interface.
- E. Set a network interface active or inactive.
Answer: A,E
NEW QUESTION 64
Which of the following entries in /etc/syslog.confwrites all mail related events to the file /var/log/ maillogand sends all critical events to the remote server logger.example.com?
mail.* /var/log/maillog
- A. mail.crit @logger.example.org
mail * /var/log/maillog - B. mail.crit @logger.example.org
mail.* /var/log/maillog - C. mail.crit syslog://logger.example.org
mail /var/log/maillog - D. mail crit @logger.example.org
- E. mail,crit @logger.example.org
mail.* /var/log/maillog
Answer: A
NEW QUESTION 65
Which of the following statements is valid in the file /etc/nsswitch.conf?
- A. include /etc/nsswitch.d/
- B. hosts: files dns
- C. 192.168.168.4 dns-server
- D. multi on
Answer: B
NEW QUESTION 66
Which of the following features are provided by SPICE? (Choose two.)
- A. Uploading and running a binary program on a remote machine.
- B. Downloading and locally installing applications from a remote machine.
- C. Replacing Xorg as local X11 server.
- D. Accessing graphical applications on a remote host.
- E. Connecting local USB devices to remote applications.
Answer: B,E
Explanation:
Explanation/Reference:
NEW QUESTION 67
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. ifconfig eth0
- C. netstat -s -i eth0
- D. ip stats show dev eth0
- E. ip -s link show eth0
Answer: B,C
NEW QUESTION 68
On a regular users workstation the route command takes a long time before printing out the routing table.
Which of the following errors does that indicate?
- A. DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.
- B. The local routing information may be corrupted and must be re-validated using a routing protocol.
- 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. 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.
Answer: A
NEW QUESTION 69
Which of the following getentinvocations lists all existing users?
- A. getent uids
- B. getent passwd
- C. getent users
- D. getent logins
- E. getent homes
Answer: B
Explanation:
Explanation/Reference:
NEW QUESTION 70
Which of the following fields are available in the standard format of both the global /etc/crontab file as well as in user-specific crontabfiles? (Choose two.)
- A. Username
- B. Command
- C. Year
- D. Effective group ID
- E. Minute
Answer: D,E
Explanation:
Explanation/Reference:
NEW QUESTION 71
Which file used by XDM specifies the default wallpaper?
- A. /etc/X11/defaults.conf
- B. /etc/X11/xdm.conf
- C. /etc/X11/xdm/Defaults
- D. /etc/X11/xdm/Xsetup
Answer: D
NEW QUESTION 72
What is true regarding a default route?
- A. When a default route is set, all other routes are disabled until the default route is deleted.
- B. The default route is always used first. When the default route is not available more specific routes are tried.
- C. Without a default route, no network communication even in directly attached networks is possible.
- D. The default route is only used if there is not a more specific route to a destination host or network.
Answer: D
NEW QUESTION 73
What output is produced by the following command sequence?
echo '1 2 3 4 5 6' | while read a b c; do
echo result $c $b $a;
done
- A. result: 6 5 4
- B. result: 3 2 1
- C. result: 3 4 5 6 2 1
- D. result: 1 2 3 4 5 6
- E. result: 6 5 4 3 2 1
Answer: C
NEW QUESTION 74
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. To allow remote logins, the user's private key must be copied to the remote server.
- C. The private key must never be revealed to anyone.
- D. Several different public keys may be generated for the same private key.
- E. To maintain the private key's confidentiality, the SSH key pair must be created by its owner.
Answer: C,E
NEW QUESTION 75
FILL BLANK
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.)
Answer:
Explanation:
up
NEW QUESTION 76
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