CompTIA Linux+ (XK0-005) Awareness (Entry Level)

  • 15m
  • 15 questions
The CompTIA Linux+ (XK0-005) Awareness (Entry Level) benchmark measures your entry-level exposure to the Linux operating system. You will be evaluated on your knowledge of Linux distributions, storage, and file systems, as well as task automation using shell scripts, common Linux threats, authentication and authorization, Linux firewall solutions, and troubleshooting performance issues. A learner who scores high on this benchmark demonstrates that they have a basic understanding of the Linux server technology platform and vocabulary.

Topics covered

  • define Linux OS components such as the kernel, libraries, the command line, and user interfaces
  • describe how application containers differ from virtual machines
  • list common CPU and memory performance problems
  • list common Linux threats including social engineering, malware, flawed software, and security misconfigurations
  • outline how the CIA triad enhances IT security
  • outline how to automate tasks using shell scripts with commands such as tee, awk, sed, find, grep, and egrep
  • outline the purpose of various Linux directories such as /boot, /proc, /dev, /var, and so on
  • outline the role authentication plays including the use of Lightweight Directory Access Protocol (LDAP)
  • outline the steps used when troubleshooting problems
  • recall how Linux treats mass storage devices, partitioning and partition types, and file system types
  • recall various Linux firewall solutions including firewalld, iptables, nftables, and Uncomplicated Firewall (UFW)
  • recall when to use specific Linux distributions to address specific use cases
  • recognize how cryptography protects data
  • recognize how pluggable authentication module (PAM) is used for security in Linux
  • recognize the different types of firewalls, including the web application firewall (WAF), their placement, such as in the demilitarized zone (DMZ), and when they should be used