2020 Update LPIC-2 Exam 201-450 Practice Test Questions

1. What command must be used to create an ext3 file-system?

mkext3fs

mkjfs

mke3fs

mke2fs

mkext2fs

2. What needs to be done to enable 32 bit I/O transfer mode for (E)IDE disks, on a system running a 2.4 series Linux kernel?

The Linux kernel must be recompiled.

The sysctl utility must be used.

The hdparm utility must be used.

This feature isn’t supported in 2.4 series kernels.

This feature is enabled by default in 2.4 series kernels

3. DNSSEC is used for?

Encrypted DNS queries between nameservers.

Cryptographic authentication of DNS zones.

Secondary DNS queries for local zones.

Defining a secure DNS section.

Querying a secure DNS section.

4. Which of these commands allows you to use shared libraries that are in /usr/local/lib?

export LD_PRELOAD=/usr/local/lib

export LD_LIBRARY_PATH=/usr/local/lib

ldconfig /usr/local/lib

ldd /usr/local/lib

5. Which TWO archiving formats are used to create an initramfs image?

gzip

tar

rar

cpio

bzip2

6. After unpacking the source code for a Linux kernel, what is the first make command that should be run which will delete any current configuration and all generated files?

This command will ensure that no inappropriate files were left in the kernel archive by the maintainer.

make depend

make distclean

make config

make clean

make mrproper

7. Which script, in the linux/scripts directory, can be used to add up grades or updated code to the 2.6.xx kernel source code?

patch

patch-kernel

kernel-update

upgrade-kernel

upgrade

8. What tool can you use to print shared library dependencies?

ldconfig

ldd

libdep

libpath

ldev

9. Which of the following commands will copy one disk partition /dev/sda3 to /dev/sdb3?

dd if=/dev/sdb3 of =/dev/sda3 bs=4096 conv=notrunc

dd if=/dev/sda3 of=/dev/sdb3 bs=4096 conv=notrunc

dd –input /dev/sda3 –output /dev/sdb3 bs=4096 conv=notrunc

dd –input /dev/sdb3 –output /dev/sda3 bs=4096 conv=notrunc

10. After unpacking source code, what file is used by configure to create a final Makefile?

configure.in

configure.ac

Makefile.in

Makefile.tmpl

11. User Joseph has successfully extracted and compiled a program from source code. Installing the binaries produces errors.

What is the most likely reason?

The source code was compiled for a different CPU

The permissions set in the /usr/bin directory are wrong

The binaries require root privileges to be installed

The wrong prefix was used during configuration of the source code

12. You have finished updating and resolving dependencies for some source code.

What command should you run before recompiling the code into binary form?

make clean

make all

make dep

make install

13. How can you manually add an entry to your system’s ARP cache?

Directly edit /etc/arp-cache

Run add-arp hostname FF:FF:FF:FF:FF:FF

Run ping -a hostname

Run arp -s hostname FF:FF:FF:FF:FF:FF

Edit arp.conf and restart arpd

14. You find that a host (192.168.1.4) being used on one of your client’s networks has been compromised with a backdoor program listening on port 31337.

Your client requests a list of originating IP addresses connecting to that port.

Using a Linux workstation as traffic analyzer, which of the following commands would gather the data requested by the client?

tcpdump host 192.168.1.4 and port 31337 -w out

nmap host 192.168.1.4:31337

arpwatch -n 192.168.1.4/32 -p 31337 > capture

pcap -d 192.168.1.4:31337

ipwatch –syn 192.168.1.4 -p 31337 –1og=out

15. Which tool can be used to control the runtime behavior of udev?

udev

udevctl

udevadm

udevconfig

udevclient

16. Which of the following entries are NOT valid in /etc/raidtab?

superblock-persistent

chunk-size

nr-spare-disks

nr-raid-disks

17. A pre-compiled module has been moved to /lib/modules/<kernel-version>, but ‘modprobe -a <module-name>’ fails to load it.

What needs to be done to enable usage of this module?

make modules_install must be run.

depmod must be run.

The kernel must be re-compiled.

modules.conf or modprobe.conf must be edited.

The system must be rebooted.

18. Which of the following commands should be used in a bash script that needs a variable containing the IP address of the eth0 interface?

The output for the command ifconfig eth0 is shown below:

eth0 Link encap:Ethernet HWaddr 00:0C:29:CB:FA:30

inet addr:192.168.246.11 Bcast:192.168.246.255 Mask:255.255.255.0 UP BROADCAST

RUNNING MULTICAST MTU:1500 Metric:1

RX packets:4721 errors:0 dropped:0 overruns:0 frame:0 TX packets:3216 errors:0

dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000

RX bytes:445184 (434.7 Kb) TX bytes:512968 (500.9 Kb) Interrupt:185 Base address:0x1080

IP=LANG= ifconfig eth0 | awk ‘{ print $2 }’ | cut -f2

IP=`LANG= ifconfig eth0 | grep inet | cut -d: -f2 | awk { print $1 }`

IP=`LANG= ifconfig eth0 | awk ‘{ print $3 }’`

IP=$(LANG= ifconfig eth0 | grep inet | awk ‘{ print $2 }’ | cut -d: -f2)

IP=$(LANG= ifconfig eth0 | grep inet | cut -d: -f2)

19. You have elected to use the automounter and the autofs script.

Your /etc/auto.master file contains the following:

/home /etc/auto.home

/project /etc/auto.project

/data yp:data.map

If you change the contents of /etc/auto.project to include a new source path what must be done to access the new path?

Shutdown and restart the local NFS client daemons

Run fsck on the affected mount point

Issue the /etc/init.d/autofs reload command

Add the newly mapped path to/etc/fstab

Nothing Simply access the newly mapped resource

20. In order to find all library dependencies of /usr/bin/foo, which of the following statement is true?

Running ldconfig against /usr/bin/foo will show the required libraries

Running ldd against /usr/bin/foo will show the required libraries

It’s necessary to compile the program again to check the library dependencies of foo.

The ls -la command has to be run in the /usr/bin directory, to show all library dependencies of foo.

Library dependencies are shown in the /usr/lib directory.

2020 Update LPIC-2 Exam 201-450 Practice Test Questions

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