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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security | 21% | - Apply best practices for permissions and authentication - Configure SELinux and security contexts - Manage firewalls - Implement security hardening - Manage file security and access controls - Perform vulnerability assessments |
| Topic 2: Troubleshooting | 28% | - Troubleshoot security issues (SELinux, permissions) - Troubleshoot network connectivity (firewall, routing, DNS) - Troubleshoot system properties and processes - Monitor system logs, health, and events - Optimize performance (CPU, memory, I/O) - Troubleshoot user issues - Troubleshoot hardware issues - Troubleshoot application issues |
| Topic 3: Scripting, Containers, and Automation | 19% | - Automate administration with Python and configuration management tools - Deploy and manage containers (Docker/Podman) - Manage version control using Git - Manage orchestration processes - Implement automation workflows - Write and execute BASH shell scripts |
| Topic 4: System Management | 32% | - Perform basic Linux tasks - Configure storage and cloud/virtualization technologies - Manage packages and software - Manage networking - Manage files and directories - Manage users and groups - Configure kernel modules and network parameters - Manage the Linux boot process - Manage permissions and ownership - Manage system components - Manage devices - Manage storage - Manage kernel modules |
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NEW QUESTION # 33
After receiving a monitoring call, an administrator checks the Linux server for processes that have completed execution but have not been removed yet from the process table.
Which of the following represents the process state for which the administrator should search?
Answer: D
Explanation:
This process state represents zombie processes, which have finished execution but still remain in the process table because their parent process has not yet read their exit status.
NEW QUESTION # 34
A Linux systems administrator is running an important maintenance task that consumes a large amount of CPU, causing other applications to slow. Which of the following actions should the administrator take to help alleviate the issue?
Answer: B
Explanation:
Process scheduling and resource management are essential Linux administration skills covered in Linux+ V8.
When a process consumes excessive CPU resources, it can negatively impact overall system performance.
The correct solution is to lower the priority of the CPU-intensive task using the renice command. Niceness values influence how much CPU time a process receives relative to others. Increasing the niceness value reduces the process's priority, allowing other applications to receive CPU resources more fairly.
Option B directly addresses the issue. The other options do not. pidstat monitors processes but does not modify CPU allocation. nohup allows a process to continue running after logout but does not affect scheduling priority. bg resumes a stopped job in the background but does not reduce CPU usage.
Linux+ V8 documentation explicitly references nice and renice for managing CPU contention. Therefore, the correct answer is B.
NEW QUESTION # 35
A systems administrator receives reports from users who are having issues while trying to modify newly created files in a shared directory. The administrator sees the following outputs:
Which of the following provides the best resolution to this issue?
Answer: D
Explanation:
This scenario involves shared directory collaboration, which is a common system management task covered in the CompTIA Linux+ V8 objectives. The key issue is that users can create files in the shared directory, but other users in the same group cannot modify those files. This behavior is directly related to group ownership inheritance.
By default, when a user creates a file or directory, it is owned by the user and assigned the user's primary group, not necessarily the group of the parent directory. As shown in the output, files inside /share are owned by different groups (student, student2, student3), which prevents other group members from modifying them, even though the parent directory is group-writable.
The correct solution is to set the setgid (set group ID) bit on the shared directory, making option D correct.
When the setgid bit is applied to a directory, all newly created files and subdirectories inherit the group ownership of the parent directory, rather than the creator's primary group. This ensures consistent group ownership and allows all members of the shared group to collaborate effectively.
The other options are incorrect or poor practice. Option A (setuid) is intended for executables, not directories.
Option B requires constant manual intervention and does not scale. Option C weakens security by granting write access to all users, violating the principle of least privilege.
Linux+ V8 documentation explicitly recommends using the setgid bit on shared directories to manage collaborative access securely and efficiently.
NEW QUESTION # 36
A systems administrator receives reports about connection issues to a secure web server. Given the following firewall and web server outputs:
Which of the following commands best resolves this issue?
Answer: C
Explanation:
The firewall output shows that port 443/tcp (HTTPS) is explicitly denied, even though the web server is correctly listening on it. Removing the deny rule for HTTPS (ufw delete deny https/tcp) resolves the issue while still keeping the firewall active and secure.
NEW QUESTION # 37
Following the completion of monthly server patching, a Linux administrator receives reports that a critical application is not functioning. Which of the following commands should help the administrator determine which packages were installed?
Answer: A
Explanation:
The dnf history command shows a log of past package operations (install, update, remove), allowing the administrator to review which packages were installed or updated during the patching process.
NEW QUESTION # 38
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