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New LPI 201-450 Exam Dumps Collection (Question 3 - Question 12)

Question No: 3

Which of the following configuration files are used by tcpwrapper?

A. /etc/tcpd.allow and etc/tcpd.deny

B. /etc/tcpwrapper.allow and /etc/tcpwrapper.deny

C. /etc/hosts.allow and /etc/hosts.deny

D. /etc/service.allow and /etc/service.deny

Answer: C


Question No: 4

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


Question No: 5

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


Question No: 6

Which of the following are common backup systems used in Linux? (Choose TWO correct answers.)

A. Amanda

B. Bacula

C. DrBackup

D. BREWBackup

E. SARcheck

Answer: AB


Question No: 7

What command ensures that the file systems are written to disk after a lot of write operations? (Specify ONLY the command without any path or parameters.)

Answer:

sync


Question No: 8

Which of the following is a CD-ROM filesystem standard?

A. OSI9660

B. ISO9660

C. SR0FS

D. ISO8859

E. ROM-EO

Answer: B


Question No: 9

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


Question No: 10

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


Question No: 11

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


Question No: 12

What is the purpose of an initramfs during the Linux system start?

A. It loads required modules and starts sub sytems like LVM to make the root file system accessible to the kernel

B. It moves the kernel from normal system memory to initram memory to speed up kernel access

C. It copies the root file systemu2019s content to RAM to speed up the system and reduce writes to disk

D. It creates a ram disk to store volatile data for directories like /tmp to reduce writes to disk

Answer: A


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