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CompTIA XK0-005 Exam Questions
- Topic 1: System Management: This topic includes summarizing Linux fundamentals, managing files and directories given a scenario, configuring and managing storage using appropriate tools given a scenario, configuring and using appropriate processes and services given a scenario, and using appropriate networking tools given a scenario.
- Topic 2: Security: It covers summarizing security best practices in a Linux environment, implementing identity management given a scenario, configuring and executing remote connectivity given a scenario, and applying appropriate access controls given a scenario.
- Topic 3: Scripting, Containers, and Automation: The topic involves creating simple shell scripts to automate common tasks given a scenario, performing basic container operations given a scenario, performing basic version control using. Moreover, the topic summarizes common infrastructure as code technologies, container, cloud, and orchestration concepts.
- Topic 4: Troubleshooting: It includes analyzing and troubleshooting storage issues, network resource issues, CPU and memory issues, and user access and file permissions. The topic also focuses on using systemd to diagnose and resolve common problems with a Linux system given a scenario.
Free CompTIA XK0-005 Exam Actual Questions
Note: Premium Questions for XK0-005 were last updated On Jan. 25, 2025 (see below)
A DevOps engineer wants to work on a snapshot of the infrastructure as code configuration. Which of the following commands should the engineer use to accomplish this task?
Creating a snapshot of the current state of the code in Git is best achieved with the git tag <feature> command, which is often used to mark release points or stable versions in a project. Tags are helpful for referencing points in history without affecting the branch structure. Unlike branches, which are for active development, tags are commonly used to mark versions for future reference or deployment. Reference: CompTIA Linux+ Study Guide.
An organization's business office needs to collaborate on quarterly reports and asks the systems administrator to create a finance group. The administrator creates the following directory: drwxrwxr-x Business Business |j096 Oct 15 16:40 Q1
Which of the following commands will allow all members of the finance group to have group ownership of all files created in the Q1 directory while ensuring that members of the business group preserve access? (Select two).
To ensure all files created in Q1 inherit the group ownership of finance, the chmod g+s command sets the group ID (SGID) on the directory, ensuring new files belong to the group of the directory. chown Finance Q1/ changes the group ownership of Q1 to Finance, allowing Finance group members access. These settings facilitate collaborative permissions as per CompTIA Linux+ recommendations for group-based file sharing. Reference: CompTIA Linux+ Study Guide.
A Linux administrator is enabling root log-in over SSH on a server. Which of the following combinations of files and parameters should the administrator modify to accomplish this task?
To enable root login over SSH, the administrator must edit the /etc/ssh/sshd_config file, which configures the SSH daemon. The PermitRootLogin directive should be set to yes to allow root login. After making this change, the SSH daemon must be restarted for the changes to take effect.
A Linux administrator needs to remove all local firewall rules on a Linux system. Which of the following commands should the administrator run?
The iptables -F command flushes all the firewall rules, effectively removing them from the system. This command clears out all existing rules from all chains (INPUT, OUTPUT, and FORWARD), leaving the system with no active iptables rules.
Users are reporting that a Linux server is responding slowly. A systems administrator troubleshooting the server issue sees the following iostat output, with %iowait at 50.38. Which of the following is most likely the issue?
The %iowait value represents the percentage of time the CPU is waiting for I/O operations to complete. A high %iowait value suggests the system is bottlenecked by disk I/O, which could lead to slow response times. Addressing disk I/O bottlenecks would improve performance.
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