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New LPI 201-450 Exam Dumps Collection (Question 4 - Question 13)
Q4. Which program lists information about files and network connections opened by processes? (Specify ONLY the command without any path or parameters.)
Answer:
lsof, /usr/bin/lsof
Q5. A correctly formatted entry has been added to /etc/hosts.deny to prevent certain clients from connecting to a service but this is having no effect. What could be the cause of this? (Choose TWO correct answers.)
A. tcpd needs to be sent the HUP signal.
B. The service needs to be restarted.
C. The machine needs to be restarted.
D. There is a conflicting entry in /etc/hosts.allow.
E. The service does not support tcpwrapper.
Answer: DE
Q6. Which of the following is a userspace application used to modify EFI entries on a Linux system?
A. efieditor
B. configefi
C. efimanager
D. efiboottmgr
E. efibootedit
Answer: D
Q7. Which of the following commands adds a static IPv6 address to the network interface eth0?
A. ip add addr 2001:db8::1337/64 dev eth0
B. ip -6 add addr 2001:db8::1337/64 dev eth0
C. ip addr add 2001:db8::1337/64 dev eth0
D. ip -6 addr add new 2001:db8::1337/64 dev eth0
E. ip addr add -6 2001:db8::1337/64 dev eth0
Answer: D
Q8. What effect does the u2013f option to the update-rc.d command have on files in the /etc/rcX.d/ and /etc/init.d/ directories?
A. It will force the removal of the symlinks in /etc/rcX.d/ even when the links are read only
B. It will remove both the symlinks in /etc/rcX.d/ and the init script in /etc/init.d/
C. It will remove the init script in /etc/init.d/ and the symlinks in /etc/rcX.d/ and update the package information of installed files
D. It will force the removal of symlinks in /etc/rcX.d/ even if the corresponding init script still exists in
/etc/init.d/
Answer: D
Q9. Considering the following kernel IP routing table below, which of the following commands must be used to remove the route to the network 10.10.1.0/24? (Select TWO answers)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
203.0.113.162 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
172.16.87.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.246.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
10.10.1.0 192.168.246.11 255.255.255.0 UG 0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 203.0.113.162 0.0.0.0 UG 0 0 0 ppp0
A. ip net delete 10.10.1.0/24 B. route del 10.10.1.0/24
C. route del -net 10.10.1.0/24
D. route del 10.10.1.0/24 gw 192.168.246.11
E. ip route delete 10.10.1.0/24
Answer: CE
Q10. What is the purpose of a system mount unit?
A. It is used by the command systemd-mount and allows users to mount partitions to mount points of their choice
B. It is used only to mount network file systems to local mount points. It cannot be used for local media
C. It is created by the command systemd-fstab-generator to integrate entries from /etc/fstab into the system boot process
D. It is used by the command mount when using system to mount and unmount file systems
Answer: A
Q11. The following command has just been run successfully: cd /opt; tar xvf /dev/nst0;
What will happen if the command sequence is run again?
A. An error saying that there is no tape present is generated because the tape has been ejected after being used.
B. The contents of /opt will be restored again.
C. The entire contents of /opt will be replaced with the contents of the next file on the tape.
D. The contents of /opt will have additional content added from the next file on the tape.
Answer: D
Q12. Which of the following is an example path to a Linux software RAID array?
A. /dev/raid0
B. /dev/rd1
C. /dev/pr0
D. /dev/md1
Answer: D
Q13. Due to extreme system use, a Linux system requires some additional swap space. To initialize 5GB of additional swap space, which combination of commands should be used?
A. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile; mount /tmp/swapfile
B. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; swapon /tmp/swapfile
C. dd if=/dev/zero of=/tmp/swapfile bs=1024 count=5120000; mkswap /tmp/swapfile; swapon/tmp/swapfile
D. touch -5G /tmp/swapfile; swapon /tmp/swapfile
E. mkswap /tmp/swapfile 512000; swapon /tmp/swapfile
Answer: C
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