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LX0-103 - CompTIA Linux+ [Powered by LPI] - Dump Information

Vendor : CompTIA
Exam Code : LX0-103
Exam Name : CompTIA Linux+ [Powered by LPI]
Questions and Answers : 120 Q & A
Updated On : August 22, 2017
PDF Download Mirror : LX0-103 Brain Dump
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LX0-103 Questions and Answers

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Answer: /tmp, tmp, /var/tmp, /tmp/, /var/tmp/


QUESTION: 110

In which directory must definition files be placed to add additional repositories to yum?


Answer: /etc/yum.repos.d, /etc/yum.repos.d/, yum.repos.d, yum.repos.d/


QUESTION: 111

What is the name of the main configuration file for GNU GRUB? (Specify the file name only without any path.)


Answer: menu.lst, grub.conf, grub.cfg


QUESTION: 112

Which option to the yum command will update the entire system? (Specify ONLY the option name without any additional parameters.)


Answer: update, upgrade


QUESTION: 113

Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)


Answer: swapoff, /sbin/swapoff


QUESTION: 114

Which Debian package management tool asks the configuration questions for a specific already installed package just as if the package were being installed for the first time? (Specify ONLY the command without any path or parameters.)


Answer: dpkg-reconfigure


QUESTION: 115

Which signal is missing from the following command that is commonly used to instruct a daemon to reinitialize itself, including reading configuration files?


killall -s daemon


Answer: HUP, SIGHUP, 1


QUESTION: 116

Which command displays a list of all background tasks running in the current shell? (Specify ONLY the command without any path or parameters.)


Answer: jobs


QUESTION: 117

Which Bash environment variable defines in which file the user history is stored when exiting a Bash process? (Specify ONLY the variable name.)


Answer: HISTFILE


QUESTION: 118

Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)


Answer: mkdir, /usr/bin/mkdir


QUESTION: 119

Which command is used to create and initialize the files used to store quota information? (Specify ONLY the command without any path or parameters.)


Answer: quotacheck


QUESTION: 120

Which umask value will result in the default access permissions of 600 (rw-------) for files and 700 (rwx------) for directories? (Specify only the numerical umask


value.)


Answer: 0077, 077



CompTIA LX0-103 Exam (CompTIA Linux+ [Powered by LPI]) Detailed Information

LX0-103 - CompTIA Linux+ [Powered by LPI]


LX0-103 Test Objectives


CompTIA Linux+

Certification Exam 1 Objectives

EXAM NUMBER: LX0-103

About the Exam

Candidates are encouraged to use this document to prepare for the CompTIA Linux+ LX0-103 exam. In order to receive CompTIA Linux+ certification, a candidate must pass two exams. The CompTIA Linux+ certification offers a framework for acquiring working knowledge of Linux for IT professionals working as junior-level system administrators, as well as those working in Web and software development. Successful candidates will have the following skills:

  • Work at the Linux command line

  • Perform easy maintenance tasks including assisting users, adding users to a larger system, executing backup & restore and shutdown & reboot

  • Install and configure a workstation (including X) and connect it to a LAN, or a stand-alone PC via modem to the Internet in the design of capture solutions, while addressing security requirements

    EXAM DEVELOPMENT

    CompTIA exams result from subject matter expert workshops and industry-wide survey results regarding the skills and knowledge required of an entry-level IT professional.

    TEST DETAILS

    Required exam LX0-103

    Number of questions 60

    Type of questions Multiple choice

    Length of test 90 minutes

    Recommended experience A+, Network+ and at least 12 months

    of Linux administration experience

    Passing score 500 (on a scale of 200–800)

    EXAM OBJECTIVES (DOMAINS)

    The table below lists the domains measured by this examination and the extent to which they are represented:

    DOMAIN

    101 System Architecture

    PERCENTAGE OF EXAMINATION

    14%

    102 Linux Installation and Package Management

    18%

    103 GNU and Unix Commands

    43%

    104 Devices, Linux Filesystems, Filesystem Hierarchy Standard

    25%

    Total

    100%

    101 System Architecture

    101.1

    Determine and configure hardware settings.

    • Enable and disable integrated peripherals

    • Configure systems with or without external peripherals such as keyboards

    • Differentiate between the various types of mass storage devices

    • Know the differences between coldplug and hotplug devices

  • Determine hardware resources for devices

  • Tools and utilities to list various hardware information (e.g., Isusb, lspci)

  • Tools and utilities to manipulate USB devices

  • Conceptual understanding of sysfs, udev, dbus

  • The following is a partial list of the used files, terms and utilities:

    • /sys

    • /proc

    • /dev

    • modprobe

    • lsmod

    • lspci

    • lsusb

      101.2

      Boot the system.

      • Provide common commands to the boot loader and options to the kernel at boot time

      • Demonstrate knowledge of the boot sequence from BIOS to boot completion

      • Understanding of SysVinit and systemd

        • Awareness of Upstart

        • Check boot events in the log file

        • The following is a partial list of the used files, terms and utilities:

          • dmesg

          • BIOS

        • bootloader

        • kernel

        • initramfs

        • init

        • SysVinit

        • system

        101.3

        Change runlevels/boot targets and shutdown or reboot system.

        • Set the default runlevel or boot target

        • Change between runlevels/boot targets including single user mode

        • Shutdown and reboot from the command line

        • Alert users before switching runlevels/ boot targets or other major system events

        • Properly terminate processes

  • The following is a partial list of the used files, terms and utilities:

    • /etc/inittab

    • shutdown

    • init

    • /etc/init.d

    • telinit

    • system

    • systemctl

    • /etc/systemd/

    • /usr/lib/system/

    • wall

      102 Linux Installation and Package Management

      102.1

      Design hard disk layout.

      • Allocate filesystems and swap space to separate partitions or disks

      • Tailor the design to the intended use of the system

      • Ensure the /boot partition conforms to the hardware architecture requirements for booting

      • Knowledge of basic features of LVM

      • The following is a partial list of the used files, terms and utilities:

        • /(root) filesystem

        • /var filesystem

        • /home filesystem

        • /boot filesystem

          • swap space

          • mount points

          • partitions

          102.2

          Install a boot manager.

      • Providing alternative boot locations and backup boot options

      • Install and configure a boot loader such as GRUB Legacy

      • Perform basic configuration changes for GRUB 2

      • Interact with the boot loader

      • The following is a partial list of the used files, terms and utilities:

        • menu.lst, grub.cfg and grub.conf

        • grub-install

        • grub-mkconfig

        • MBR

          102.3

          Manage shared libraries.

      • Identify shared libraries

      • Identify the typical locations of system libraries

      • Load shared libraries

      • The following is a partial list of the used files, terms and utilities:

        • ldd

        • ldconfig

        • /etc/ld.so.conf

        • LD_LIBRARY_PATH

102.4

Use Debian package management.

  • Linux Installation and Package Management

    • Install, upgrade and uninstall Debian binary packages

    • Find packages containing specific files or libraries that may or may not be installed

    • Obtain package information such as version, content, dependencies, package integrity and installation status (whether or not the package is installed)

      • The following is a partial list of the used files, terms and utilities:

        • /etc/apt/sources.list

        • dpkg

        • dpkg-reconfigure

        • apt-get

        • apt-cache

        • aptitude

          102.5

          Use RPM and YUM package management.

          • Install, re-install, upgrade and remove packages using RPM and YUM

          • Obtain information on RPM packages such as version, status, dependencies, integrity and signatures

          • Determine what files a package provides, as well as find which package a specific file comes from

          • The following is a partial list of the used files, terms and utilities:

            • rpm

            • rpm2cpio

            • /etc/yum.conf

            • /etc/yum.repos.d/

            • yum

            • yumdownloader

              103 GNU and Unix Commands

              103.1

              Work on the command line.

          • Use single shell commands and one line command sequences to perform basic tasks on the command line

          • Use and modify the shell environment including defining, referencing and exporting environment variables

          • Use and edit command history

          • Invoke commands inside and outside the defined path

          • The following is a partial list of the used files, terms and utilities:

            • bash

            • echo

            • env

            • export

        • pwd

        • set

        • unset

        • man

        • uname

        • history

        • .bash_history

          103.2

          Process text streams using filters.

          • Send text files and output streams through text utility filters to modify the output using standard UNIX commands found in the GNU textutils package

          • The following is a partial list of the used files, terms and utilities:

            • cat

            • cut

        • expand

        • fmt

        • head

        • od

        • join

        • nl

        • paste

        • pr

        • sed

        • sort

        • split

        • tail

        • tr

        • unexpand

        • uniq

        • wc

      103.3

      Perform basic file management.

      • Copy, move and remove files and directories individually

      • Copy multiple files and directories recursively

      • Remove files and directories recursively

      • Use simple and advanced wildcard specifications in commands

      • Use find to locate and act on files based on type, size or time

      • Usage of tar, cpio and dd

      • The following is a partial list of the used files, terms and utilities:

        • cp

        • find

        • mkdir

        • mv

        • ls

        • rm

        • rmdir

        • touch

      • tar

      • cpio

      • dd

      • file

      • gzip

      • gunzip

      • bzip2

      • xz

      • file globbing

      103.4

      Use streams, pipes and redirects.

  • GNU and Unix Commands

    • Redirecting standard input, standard output and standard error

    • Pipe the output of one command to the input of another command

    • Use the output of one command as arguments to another command

    • Send output to both stdout and a file

    • The following is a partial list of the used files, terms and utilities:

      • tee

      • xargs

        103.5

        Create, monitor and kill processes.

    • Run jobs in the foreground and background

    • Signal a program to continue running after logout

    • Monitor active processes

    • Select and sort processes for display

    • Send signals to processes

      • The following is a partial list of the used files, terms and utilities:

        • &

        • bg

        • fg

        • jobs

        • kill

        • nohup

          • ps

          • top

          • free

          • uptime

          • pgrep

          • pkill

          • killall

          • screen

            103.6

            Modify process execution priorities.

            • Know the default priority of a job that is created

            • Run a program with higher or lower priority than the default

            • Change the priority of a running process

            • The following is a partial list of the used files, terms and utilities:

              - nice

          • ps

          • renice

          • top

            103.7

            Search text files using regular expressions.

            • Create simple regular expressions containing several notational elements

            • Use regular expression tools to perform searches through a filesystem or file content

      • The following is a partial list of the used files, terms and utilities:

        • grep

        • egrep

          • fgrep

          • sed

          • regex(7)

            103.8

            Perform basic file editing operations using vi.

            • Navigate a document using vi

            • Use basic vi modes

            • Insert, edit, delete, copy and find text

            • The following is a partial list of the used files, terms and utilities:

              • vi

                - /, ?

              • h, j, k, l

          • i, o, a

          • c, d, p, y, dd, yy

            - ZZ, :w!, :q!, :e!

            104 Devices, Linux Filesystems and Filesystem Hierarchy Standard

            104.1

            Create partitions and filesystems.

            • Manage MBR partition tables

            • Use various mkfs commands to create various filesystems such as:

              • ext2/ext3/ext4

              • XFS

              • VFAT

            • Awareness of ReiserFS and Btrfs

            • Basic knowledge of gdisk and parted with GPT

            • The following is a partial list of the used files, terms and utilities:

              • fdisk

              • gdisk

          • parted

          • mkfs

          • mkswap

            104.2

            Maintain the integrity of filesystems.

            • Verify the integrity of filesystems

            • Monitor free space and inodes

            • Repair simple filesystem problems

            • The following is a partial list of the used files, terms and utilities:

              • du

              • df

              • fsck

              • e2fsck

          • mke2fs

          • debugfs

          • dumpe2fs

          • tune2fs

          • xfs tools (such as xfs_ metadump and xfs_info)

            104.3

            Control mounting and unmounting of filesystems.

            • Manually mount and unmount filesystems

            • Configure filesystem mounting on bootup

            • Configure user mountable removeable filesystems

      • The following is a partial list of the used files, terms and utilities:

        • /etc/fstab

        • /media

        • mount

        • umount

          104.4

          Manage disk quotas.

          • Set up a disk quota for a filesystem

          • Edit, check and generate user quota reports

          • The following is a partial list of the used files, terms and utilities:

            • quota

            • edquota

              • repquota

              • quotaon

                104.5

  • Devices, Linux Filesystems and Filesystem Hierarchy Standard

  • Manage file permissions and ownership.

    • Manage access permissions on regular and special files as well as directories

    • Use access modes such as suid, sgid and the sticky bit to maintain security

    • Know how to change the file creation mask

    • Use the group field to grant file access to group members

    • The following is a partial list of the used files, terms and utilities:

      • chmod

      • umask

      • chown

      • chgrp

        104.6

        Create and change hard and symbolic links.

        • Create links

        • Identify hard and/or soft links

        • Copying versus linking files

        • Use links to support system administration tasks

        • The following is a partial list of the used files, terms and utilities:

          • ln

          • ls

            104.7

            Find system files and place files in the correct location.

        • Understand the correct locations of files under the FHS

        • Find files and commands on a Linux system

        • Know the location and propose of important file and directories as defined in the FHS

    • The following is a partial list of the used files, terms and utilities:

      • find

      • locate

      • updatedb

      • whereis

        • which

        • type

        • /etc/updatedb.conf

    © 2016 CompTIA Properties, LLC, used under license by CompTIA Certifications, LLC. All rights reserved. All certification programs and education related to such programs are operated exclusively by CompTIA Certifications, LLC. CompTIA is a registered trademark of CompTIA Properties, LLC in the U.S. and internationally. Other brands and company names mentioned herein may be trademarks or service marks of CompTIA Properties, LLC or of their respective owners. Reproduction or dissemination prohibited without written consent of CompTIA Properties, LLC. Printed in the U.S. 02233-Jan2016




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