CompTIA Linux+ Practice Tests

Exam XK0-004

Steve Suehring

• Editore: Sybex
• Anno: 2019
• ISBN:
  9781119556022
• Edizione: 2
• Argomento: Computer Science
• Categoria: Certification Guides in Computer Science

The best practice test preparation for the foundational CompTIA Linux+ certification exam

If you're preparing for this all-important exam, turn to CompTIA Linux+ Practice Tests. The book covers the 5 objective domains, PLUS one additional 90-question practice exam, for a total of 1, 000 practice test questions. Readers will also get one year of FREE access to the online test bank where they can study and work through the questions, reinforcing their skills and knowledge. Study for the CompTIA Linux+ certification with Sybex and get the advantage of exam day confidence.

This book covers:

• Hardware and System Configuration
• Systems Operation and Maintenance
• Security
• Linux Troubleshooting and Diagnostics
• Automation and Scripting

Linux is a UNIX-based operating system originally created by Linus Torvalds with the help of developers around the world. Developed under the GNU General Public License, the source code is free. Because of this, Linux is viewed by many organizations and companies as an excellent, low-cost, secure alternative to expensive OSs, such as Microsoft Windows.The CompTIA Linux+ exam tests a candidate's understanding and familiarity with the Linux Kernel. As the Linux server market share continues to grow, so too does demand for qualified and certified Linux administrators.

Chapter 1
Hardware and System Configuration

THE FOLLOWING COMPTIA LINUX+ EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:

• 
  1.1 Explain Linux boot process concepts.
  • The following is a partial list of the used files, terms, and utilities:
    • Boot loaders such as GRUB and GRUB2
    • Boot options such as UEFI/EFI, PXE, NFS, and booting from ISO and HTTP/FTP
    • /etc/default/grub
    • /etc/grub2.cfg
    • /boot
    • mkinitrd
    • dracut
    • grub2-install
    • grub2-mkconfig
    • initramfs
    • linux.efi
    • vmlinuz
    • vmlinux
• 
  1.2 Given a scenario, install, configure, and monitor kernel modules
  • The following is a partial list of the used files, terms, and utilities:
    • lsmod
    • insmod
    • modprobe
    • dmesg
    • rmmod
    • depmod
    • /usr/lib/[kernelversion]
    • /usr/lib/modules
    • /etc/modprobe.conf
    • /etc/modprobe.d/
• 
  1.3 Given a scenario, configure and verify network connection parameters
  • The following is a partial list of the used files, terms, and utilities:
    • ping
    • netstat
    • nslookup
    • dig
    • host
    • route
    • ip
    • ethtool
    • ss
    • iwconfig
    • nmcli
    • brctl
    • nmtui
    • /etc/sysconfig/network
    • /etc/sysconfig/network-scripts/
    • /etc/hosts
    • /etc/network
    • /etc/resolv.conf
    • /etc/netplan
    • /etc/sysctl.conf
    • /etc/dhcpd.conf
    • Bonding aggregation, active/passive, load balancing
• 
  1.4 Given a scenario, manage storage in a Linux environment
  • The following is a partial list of the used files, terms, and utilities:
    • Basic partitions including raw devices, GPT, and MBR
    • File system hierarchy including real file systems, virtual filesystems, relative paths, and absolute paths
    • Device mappers including lvm, mdadm, and Multipath
    • XFS tools
    • LVM tools
    • EXT tools
    • fdisk
    • parted
    • mkfs
    • iostat
    • df
    • du
    • mount
    • umount
    • tune2fs
    • fsck
    • /etc/fsta...