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New LPI 201-450 Exam Dumps Collection (Question 6 - Question 15)

Q1. Which /etc/hosts.allow entries will permit access to sshd for users from the 192.168.1.0/24 subnet? (Choose TWO correct answers.)

A. sshd : 192.168.1. B. sshd : 192.168.1

C. sshd : 192.168.1.0 netmask 255.255.255.0

D. sshd : 192.168.1.0/255.255.255.0

E. sshd : 192.168.1.0

Answer: AD


Q2. Which command is used to install a GRUB boot loader into the master boot record?

A. grub-install

B. grub-mkconfig

C. grub-install-mbr

D. grub-glue-mbr

E. grub-mbr-setup

Answer: A


Q3. What should be done after updating the configuration file for syslogd in order to make the changes become effective? (Choose TWO correct answers.)

A. No action is required, syslogd will notice the updated configuration file after a few minutes.

B. Send the HUP signal to the syslogd process.

C. Restart the syslogd service.

D. Run the command syslogd -u.

Answer: BC


Q4. 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


Q5. What command is used to make an exact copy, at a single point in time, of a logical volume for backup purposes?

A. lvsnap

B. lvsnapshot

C. lvcreate

D. lvcopy

E. lvclone

Answer: C


Q6. What command discards unused blocks on a mounted file system in order to support SSD devices? (Specify ONLY the command without any path or parameters.)

Answer:

fstrim


Q7. According to the tcpdump output below, what is the IP address of the client host?

02:12:40.511381 IP 192.168.246.11.1045 > 192.168.246.1.22: S 3838532429:3838532429(0) win 5840 <mss

1460,sackOK,timestamp 31325740,nop,wscale 2>

02:12:40.511540 IP 192.168.246.1.22 > 192.168.246.11.1045: S 1209330085:1209330085(0) ack 383853

2430 win 5792 <mss 1460,sackOK,timestamp 11553457 3132574,nop,wscale 0>

02:12:40.511755 IP 192.168.246.11.1045 > 192.168.246.1.22: . ack 1 win 1460 <nop,nop,timestamp 3 132574

11553457>

02:12:40.515122 IP 192.168.246.1.22 > 192.168.246.11.1045: P 1:26(25) ack 1 win 5792 <nop,nop,timestamp

11553460 3132574>

02:12:40.515511 IP 192.168.246.11.1045 > 192.168.246.1.22: . ack 26 win 1460 <nop,nop,timestamp

3132578 11553460>

02:12:40.515952 IP 192.168.246.11.1045 > 192.168.246.1.22: P 1:23(22) ack 26 win 1460

<nop,nop,timestamp 3132578 11553460>

Answer:

192.168.246.11


Q8. Running tcpdump -nli eth1 'tcp' shows the following output:

14:41:53.694538 IP 10.1.52.145.51738 > 24.215.7.162.143: Flags [.], ack 33051, win 1002, options

[nop,nop,TS val 36789130 ecr 1746004159], length 0

What is the source IP address of this packet? (Please specify the answer in digits and dots ONLY.)

Answer:

10.1.52.145


Q9. Which of the following commands restores only those files containing lpi in their name from the archive lpifiles.tar.gz?

A. tar xvzf lpifiles.tar.gz --wildcards u2018*lpi*u2019

B. tar xvzwf lpifiles.tar.gz u2018*lpi*u2019

C. tar -xvfz lpifiles.tar.gz --deep u2018*lpi*u2019

D. tar -xvzf lpifiles.tar.gz --subdirs u2018*lpi*u2019

E. tar xvzf lpifiles.tar.gz --globbing u2018*lpi*u2019

Answer: A


Q10. What is the device name for the first SCSI tape drive on a system when used without automatic rewinding after each write operation? (Please specify the full path to the device.)

Answer:

/dev/nst0


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