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New LPI 201-450 Exam Dumps Collection (Question 2 - Question 11)

Q1. What is the command to add another IP address (192.168.1.2) to a network interface (eth0) that already has (at least) one IP address in the 192.168.1.0/24 subnet?

A. ip add addr 192.168.1.2/32 dev eth0

B. ifconfig eth0 192.168.1.2 netmask 255.255.255.255

C. ip addr add 192.168.1.2/32 dev eth0

D. ipconfig eth0 192.168.1.2

Answer: C

Q2. Which of the filter keywords below could be used in the following command:

tcpdump u2013i eth0 ______203.0.113.8 (Choose three.)

A. host

B. ip

C. src

D. dst

E. ipv6

Answer: ACD

Q3. 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

Q4. In order to gather performance data with sar over a longer period of time, which command should be run periodically from cron?

A. sa1

B. sarmon

C. sarec

D. sadf

E. sarcron

Answer: A

Q5. Which of the following commands creates a Btrfs subvolume named volume in/mnt?

A. btrfs subvolume add u2013n volume /mnt

B. btrfs create subvolume /mnt volume

C. btrfs-subvolume create /mnt/volume

D. btrfs subvolume new volume /mnt

E. btrfs subvolume create /mnt/volume

Answer: E

Q6. A web application server contains 64GB of RAM and two swap partitions on normal hard disk drives, each with a size of 64 GB. Within the last month, the average number of user sessions on this server has grown by 20 percent. At the same time, the average usage of RAM increased from 65 to 75 percent, while the swap space is almost not used at all. It is expected that the number of user sessions will continue to increase by about 15 to 20 percent each month. Which of the following reactions would be appropriate in response to these observations? (Choose two.)

A. Delay any hardware upgrade until there is a significant consumption of swap space to ensure an efficient usage of the available hardware

B. Create a RAID 1 device on the two swap partitions to avoid data loss in case swap space has to be used in the future

C. Consider the installation of an additional application server to distribute the load if the expected growth continues over several months

D. Move the web applicationu2021s scripts and content a ram disk in order to ensure fast access and to avoid the need for swap space

E. Update the hardware to increase the amount of available RAM to avoid using swap space

Answer: CE

Q7. A regular user, joe, has just run:

./configure && make && make install

to build and install a program. However, the installation fails. What could be done to install the program? (Choose TWO correct answers.)

A. Install the binaries manually with suinstall.

B. Run make install with root privileges.

C. Do not run ./configure in order to maintain the default configuration for correct installation.

D. Rerun ./configure with a --prefix option where the user has permissions to write.

E. Run make install_local to install into /usr/local/.

Answer: BD

Q8. Which of the following commands lists IPv4 addresses and MAC addresses of network nodes that the local system has seen on its directly connected IP networks?

A. arp

B. ifconfig

C. ipadm

D. iwlist

Answer: A

Q9. In the output of sar u2013b, what does tps stand for?

A. Terrabyte per second

B. Traffic per second

C. Transfers per second

D. Total data per second

E. Terrabit per second

Answer: C

Q10. The IDE hard drive /dev/hda does not have DMA enabled. Which command must be run to enable DMA on it?

A. hdparm -d /dev/hda

B. hdparm --dma /dev/hda

C. hdparm --dma /dev/hda1

D. hdparm -d /dev/hda1

E. hdparm -d 1 /dev/hda

Answer: E

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