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| Section | Weight | Objectives |
|---|---|---|
| System Management | 32% | - Manage networking - Manage packages and software - Manage files and directories - Manage kernel modules - Configure storage and cloud/virtualization technologies - Manage devices - Manage system components - Manage storage - Configure kernel modules and network parameters - Manage users and groups - Manage the Linux boot process - Manage permissions and ownership - Perform basic Linux tasks |
| Scripting, Containers, and Automation | 19% | - Manage version control using Git - Automate administration with Python and configuration management tools - Deploy and manage containers (Docker/Podman) - Manage orchestration processes - Implement automation workflows - Write and execute BASH shell scripts |
| Troubleshooting | 28% | - Troubleshoot system properties and processes - Troubleshoot user issues - Troubleshoot hardware issues - Troubleshoot security issues (SELinux, permissions) - Troubleshoot application issues - Troubleshoot network connectivity (firewall, routing, DNS) - Optimize performance (CPU, memory, I/O) - Monitor system logs, health, and events |
| Security | 21% | - Implement security hardening - Configure SELinux and security contexts - Manage firewalls - Perform vulnerability assessments - Apply best practices for permissions and authentication - Manage file security and access controls |
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NEW QUESTION # 26
An administrator receives reports that a web service is not responding. The administrator reviews the following outputs:
Which of the following is the reason the web service is not responding?
Answer: C
Explanation:
The error log shows "cannot load certificate key /etc/pki/nginx/private/server.key", but the listing reveals that server.key is located in /etc/pki/nginx/ rather than the expected /etc/pki/nginx/private/ directory. Since the file exists but not where Nginx is configured to look, moving it to the correct directory resolves the issue.
NEW QUESTION # 27
Which of the following statements best describes Ansible?
Answer: B
Explanation:
Ansible is an automation and configuration management tool that uses human-readable YAML playbooks to define tasks, enabling consistent and agentless automation across systems.
NEW QUESTION # 28
Users report that a Linux system is unresponsive and simple commands take too long to complete. The Linux administrator logs in to the system and sees the following: Output 1:
10:06:29 up 235 day, 19:23, 2 users, load average: 8.71, 8.24, 7.71
Which of the following is the system experiencing?
Answer: C
Explanation:
This scenario is a classic performance troubleshooting case covered under the Troubleshooting domain of the CompTIA Linux+ V8 objectives. The key indicators to analyze are the load average values and the CPU utilization statistics.
The uptime command shows load averages of 8.71, 8.24, and 7.71 over the 1-, 5-, and 15-minute intervals.
Load average represents the average number of processes that are either running on the CPU or waiting to run. On a system with 4 CPU cores, a healthy load average would typically be close to or below 4. Load averages consistently near or above 8 indicate that there are significantly more runnable processes than available CPU resources, causing processes to wait and resulting in poor system responsiveness.
The CPU output further confirms this condition. The %idle value is 0, meaning the CPU has no idle time available. The majority of CPU time is spent in user space (65.88%) and system/kernel space (20.54%), indicating heavy computational and kernel activity. While %iowait is present at 5.65%, it is not high enough to suggest that disk I/O is the primary bottleneck.
Option C, high CPU load, best explains the symptoms. High CPU load causes commands to execute slowly because processes are competing for limited CPU time. This directly matches the observed behavior of the system being unresponsive.
The other options are incorrect. High uptime simply indicates how long the system has been running and does not cause performance issues by itself. High latency is a general term and not a specific diagnosis shown by the metrics provided. High I/O wait times would require a significantly higher %iowait value.
According to Linux+ V8 documentation, correlating load averages with CPU core count and utilization is essential for accurate performance diagnosis. Therefore, the correct answer is C. High CPU load.
NEW QUESTION # 29
An administrator wants to see all logs for the app.servicesystemd process. Which of the following commands should the administrator use to complete this task?
Answer: D
Explanation:
The journalctl command queries the systemd journal, and using -u app.service filters the output to logs generated by that specific systemd unit.
NEW QUESTION # 30
A systems administrator is creating a new shared directory. Which of the following commands ensures all users from the same group will be able to work with the newly created files?
Answer: C
Explanation:
Setting the setgid bit on a shared directory causes newly created files and subdirectories to inherit the directory's group ownership, allowing members of the same group to collaborate consistently on new files.
NEW QUESTION # 31
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