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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Linux+ Certification Exam (XK0-006) |
| Exam Number: | XK0-006 |
| Related Certifications: | CompTIA Network+ CompTIA Security+ CompTIA A+ |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 90 minutes |
| Available Languages: | English |
| Exam Format: | Multiple-choice questions, Performance-based questions (PBQs) |
| Exam Price: | Approximately USD 358 (varies by region) |
| Passing Score: | 720 (on a scale of 100โ900) |
| Real Exam Qty: | Maximum 90 |
| Recommended Training: | CompTIA CertMaster Learn (Linux+ XK0-006) CompTIA Official Training Resources |
| Exam Registration: | Pearson VUE Exam Registration CompTIA Linux+ Official Certification Page |
| Sample Questions: | CompTIA XK0-006 Sample Questions |
| Exam Way: | Online (proctored) or onsite testing via Pearson VUE centers |
| Pre Condition: | No mandatory prerequisites, but 12โ24 months of Linux administration experience or CompTIA A+ / Network+ knowledge is recommended. |
| Official Syllabus URL: | https://www.comptia.org/certifications/linux |
>> XK0-006 Test Discount Voucher <<
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NEW QUESTION # 49
A systems administrator is creating a backup copy of the /home/ directory. Which of the following commands allows the administrator to archive and compress the directory at the same time?
Answer: D
Explanation:
Creating backups is a core responsibility in Linux system management, and the Linux+ V8 objectives emphasize proper use of archiving and compression tools. The tar utility is the standard Linux tool for creating archive files, and it also supports compression through various options.
The command tar -cJf /backups/home.tar.xz /home/ correctly combines both archiving and compression in a single step. The -c option creates a new archive, -J specifies XZ compression, and -f allows the administrator to define the output file name. This results in a compressed archive of the entire /home/ directory, which is efficient for storage and transfer.
The other options are incorrect. cpio is an archiving tool but does not perform compression by itself without additional commands or pipelines. rsync -z compresses data during transfer but does not create an archive file.
The dd command performs low-level copying of raw data and is not suitable for directory-based backups.
Linux+ V8 documentation highlights tar as the preferred utility for filesystem backups due to its flexibility, reliability, and support for multiple compression algorithms. Therefore, the correct answer is C.
NEW QUESTION # 50
A Linux administrator receives reports that an application hosted in a system is not completing tasks in the allocated time. The administrator connects to the system and obtains the following details:
Which of the following actions can the administrator take to help speed up the jobs?
Answer: A
Explanation:
The uptime output shows a load average of 7.75, 5.72, 5.17 on a system with only 4 processors (nproc = 4). This indicates CPU saturation since the load averages are significantly higher than the number of available CPUs. Memory and swap usage are minimal, and vmstat shows no I/O waits, so the bottleneck is CPU. Increasing CPU resources will help speed up the jobs.
NEW QUESTION # 51
Which of the following commands is used to verify whether a port is open on a remote host?
Answer: C
Explanation:
The nc command can initiate a connection to a specific port on a remote host, making it useful for verifying whether that port is open and reachable over the network.
NEW QUESTION # 52
A Linux systems administrator makes updates to systemd-managed service configuration files. Which of the following commands should the administrator execute in order to implement the changes?
Answer: C
Explanation:
In the systemd architecture, service configurations are stored in unit files (e.g., .service, .timer, .mount) located in directories like /etc/systemd/system/ or /usr/lib/systemd/system/. When an administrator modifies these files or creates new ones, the systemd manager does not automatically detect the changes. According to the CompTIA Linux+ V8 curriculum, the command systemctl daemon-reload is required to notify systemd that it needs to rescan the configuration directories and rebuild its internal dependency tree.
Without running daemon-reload, attempting to start or restart the service would result in systemd using the old, cached version of the unit file, or it might generate a warning stating that " the unit file on disk has changed. " This command is a safe operation that does not stop running services; it simply refreshes the manager ' s awareness of the current configuration.
The other options are insufficient for " implementing the changes " to the configuration files themselves.
systemctl enable (Option A) creates the links for starting the service at boot. systemctl start (Option B) attempts to launch the service. systemctl restart (Option C) stops and then starts a service, but if the unit file was changed and daemon-reload was not run, it may fail or use outdated settings.
Thus, systemctl daemon-reload is the essential first step after any modification to a systemd unit file.
NEW QUESTION # 53
Which of the following describes what Ansible is used for in the context of IT infrastructure?
Answer: C
Explanation:
The correct answer is B. Configuration management because Ansible is primarily designed as an automation and configuration management tool used to manage IT infrastructure efficiently. Within Linux environments, Ansible allows system administrators to define the desired state of systems using human-readable YAML- based playbooks. These playbooks automate tasks such as software installation, system updates, service configuration, and deployment processes across multiple machines.
Ansible operates in an agentless architecture, meaning it does not require additional software to be installed on managed nodes. Instead, it uses standard protocols such as SSH to communicate with remote systems. This makes it lightweight and easy to deploy compared to other configuration management tools. In the Linux+ context, understanding automation tools like Ansible is essential for maintaining consistency across systems, reducing manual configuration errors, and improving operational efficiency.
Option A (Database management) is incorrect because Ansible is not specifically designed to manage or administer databases, although it can automate database-related tasks. Option C (Process management) is incorrect because process management refers to controlling running processes (e.g., using commands like ps, kill, or top), which is not Ansible's primary function. Option D (Asset management) is also incorrect because asset management involves tracking hardware and software inventory, which is outside the scope of Ansible's core capabilities.
In modern Linux system administration, tools like Ansible are widely used for orchestration and configuration management, enabling administrators to automate repetitive tasks, enforce system consistency, and scale infrastructure management effectively.
NEW QUESTION # 54
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