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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Linux+ Certification Exam |
| Exam Number: | XK0-006 |
| Real Exam Qty: | Maximum of 90 |
| Available Languages: | English |
| Exam Duration: | 90 minutes |
| Passing Score: | 720 (on a scale of 100โ900) |
| Related Certifications: | CompTIA Linux+ |
| Exam Price: | USD 348 |
| Exam Format: | Multiple-choice, Performance-based |
| Certificate Validity Period: | 3 years |
| Sample Questions: | CompTIA XK0-006 Sample Questions |
| Exam Way: | Online (via Pearson VUE) or In-person at Pearson VUE testing centers |
| Pre Condition: | No formal prerequisites; recommended 12 months of hands-on experience with Linux administration |
| Official Syllabus URL: | https://www.comptia.org/en-us/certifications/linux |
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NEW QUESTION # 137
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: B
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 # 138
Which of the following Ansible components contains a list of hosts and host groups?
Answer: B
Explanation:
In Ansible, the inventory defines the list of managed nodes (hosts) and groups of hosts. It is the source from which Ansible knows what systems to configure or manage.
NEW QUESTION # 139
Which of the following is the first step when starting a new Python project on a Linux system?
Answer: C
Explanation:
The correct answer is A. python -m venv /path/to/project because creating a virtual environment is the recommended first step when starting a new Python project. A virtual environment isolates project dependencies from the system-wide Python installation, ensuring that libraries and package versions do not conflict with other projects or system components.
The command python -m venv /path/to/project creates a self-contained directory that includes its own Python interpreter, libraries, and scripts. This allows developers and administrators to install packages specific to the project without affecting the global environment. After creating the virtual environment, the next steps typically include activating it (e.g., source /path/to/project/bin/activate) and then installing dependencies using pip.
Option B (python -m pip install -r /path/to/project) is incorrect because installing dependencies from a requirements file assumes that a virtual environment or project structure is already in place. It is not the first step.
Option C (export PYTHON_PATH=/path/to/project) is incorrect because setting PYTHONPATH only modifies where Python looks for modules. It does not create an isolated environment or manage dependencies.
Option D (python -m source /path/to/project) is incorrect because source is a shell built-in command used to activate environments, not a Python module, and this syntax is invalid.
From a Linux+ perspective, using virtual environments aligns with best practices in automation and scripting.
It ensures consistency, reproducibility, and isolation of development environments, which is critical for deployment, testing, and maintaining Python-based applications.
NEW QUESTION # 140
A systems administrator needs to check access to all company servers. The administrator uses the following script, which does not complete:
for i in $(cat /home/user1.file)
do
echo $i
ssh $i uptime
Which of the following is missing from the script?
Answer: B
Explanation:
Shell scripting is a primary method for automating repetitive tasks in Linux. According to the CompTIA Linux+ V8 scripting objectives, administrators must understand the syntax for various control structures, including loops.
A for loop in Bash and other POSIX-compliant shells has a specific required structure:
* The for statement (to define the iteration).
* The do keyword (to start the block of commands).
* The loop body (the commands to execute).
* The done keyword (to terminate the loop block).
In the script provided, the administrator has correctly initiated the loop with for i in ... and opened the execution block with do. However, the script lacks the concluding done token. Without done, the shell interpreter will continue waiting for more input or return a syntax error because it does not know where the loop ends. This is why the script " does not complete " or run correctly.
The other options are related to different control structures. fi (Option A) is the closing token for an if statement, not a for loop. else (Option B) is an optional branch within an if statement. while (Option C) is a different type of loop entirely and is not a required token for a for loop.
Therefore, the missing token is verified as done.
NEW QUESTION # 141
A systems administrator troubleshoots a connectivity issue and needs to determine whether port 449 is open locally. Which of the following commands should the administrator use?
Answer: C
Explanation:
In Linux troubleshooting, identifying which ports are listening for connections is a foundational skill.
According to CompTIA Linux+ V8, the ss (socket statistics) utility is the modern replacement for the older netstat command. It is used to dump socket statistics and provides information similar to netstat, but it is faster and can display more detailed TCP and state information.
To check if a specific port (like 449) is open locally, the administrator would run ss -an | grep 449.
* -a: Displays both listening and non-listening (for established connections) sockets.
* -n: Shows numerical port numbers instead of attempting to resolve them to service names (e.g., showing 443 instead of https).
* | grep 449: Filters the output to show only lines containing the desired port number.
If the output shows a line with the state LISTEN on port *:449 or 127.0.0.1:449, the service is successfully running and bound to that port.
The other options are incorrect for the following reasons: ip link (Option A) is used to manage network interfaces (layer 2) and does not show port information (layer 4). dig (Option B) is a DNS lookup tool and cannot check port status. tracepath (Option C) is used to trace the network path to a host and detect MTU issues; it does not report on the state of specific local ports.
Therefore, ss is the verified tool for this troubleshooting task.
NEW QUESTION # 142
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