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| Section | Weight | Objectives |
|---|---|---|
| Troubleshooting | 25% | - System and network troubleshooting
|
| Security | 25% | - System security and access control
|
| System Management | 30% | - Linux installation, configuration, and system management
|
| Scripting, Containers & Automation | 20% | - Automation and scripting
|
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NEW QUESTION # 24
A systems administrator manages multiple Linux servers and needs to set up a reliable and secure way to handle the complexity of managing event records on the OS and application levels. Which of the following should the administrator do?
Answer: B
Explanation:
Log management is a critical system management function highlighted in CompTIA Linux+ V8, particularly in multi-server environments. As the number of systems and applications grows, managing logs locally on each server becomes inefficient and error-prone.
The best solution is to implement a centralized log aggregation solution, making option B correct. Centralized logging collects logs from multiple systems and applications into a single, secure location. This simplifies monitoring, searching, correlation, auditing, and incident response. Common solutions include syslog servers, ELK/EFK stacks, and SIEM platforms.
Linux+ V8 documentation emphasizes centralized logging as a best practice for availability, troubleshooting, and security analysis. It enables administrators to detect patterns, investigate incidents, and maintain compliance more effectively than isolated log files.
The other options are insufficient on their own. On-demand retrieval does not scale well. Log backups protect data but do not simplify analysis. Log rotation manages disk usage but does not address distributed log complexity.
Therefore, the correct answer is B. Implement a centralized log aggregation solution.
NEW QUESTION # 25
Which of the following commands should an administrator use to see a full hardware inventory of a Linux system?
Answer: C
Explanation:
dmidecode retrieves detailed hardware information from the system's DMI/SMBIOS, including BIOS, CPU, memory, and motherboard details, providing a full hardware inventory.
NEW QUESTION # 26
A systems administrator needs to integrate a new storage array into the company ' s existing storage pool. The administrator wants to ensure that the server is able to detect the new storage array. Which of the following commands should the administrator use to ensure that the new storage array is presented to the systems?
Answer: D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
The lsscsi command is used to list information about SCSI devices (including storage arrays) that are attached to the system. This is critical when integrating a new storage array because it allows the administrator to verify that the operating system detects the new device at the SCSI layer, which is the underlying interface for most enterprise storage solutions. lsscsi outputs a list of recognized SCSI devices, their device nodes, and associated information.
Other options:
B). lsusb: Lists USB devices, not storage arrays on SCSI/SATA/SAS.
C). lsipc: Displays information on IPC (inter-process communication) facilities, unrelated to hardware detection.
D). lshw: Lists hardware details and can show storage, but lsscsi is specifically designed for SCSI device detection and is the most direct method for this task.
Reference:
CompTIA Linux+ Study Guide: Exam XK0-006, Sybex, Chapter 7: " Managing Storage " , Section: " Identifying and Accessing Storage Devices " CompTIA Linux+ XK0-006 Objectives: Domain 4.0 - Storage and Filesystems
NEW QUESTION # 27
Which of the following can be implemented with PAM to detect and block dictionary attacks?
Answer: D
Explanation:
This PAM module tracks failed authentication attempts and can automatically lock accounts after a defined threshold is exceeded, effectively detecting and blocking dictionary and brute-force attacks.
NEW QUESTION # 28
User1 reports "access denied" errors while trying to execute app. Given the following outputs:
Which of the following options will remediate this issue?
Answer: C
Explanation:
According to the output of getfacl app, user1 has only "rw" (read and write) permissions, but lacks
"x" (execute). Without execute permission, user1 cannot run the file. To allow user1 to execute app, you must update the ACL to add execute permission (e.g., setfacl -m u:user1:rwx app).
Modifying "others" permissions (option B) is not secure or necessary, adding user1 to the wheel group (option C) is unrelated, and moving the file (option D) does not resolve permission issues.
NEW QUESTION # 29
......
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