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NEW QUESTION # 25
A systems administrator wants to update and apply changes in an existing file in a remote Git repository.
Which of the following is the last Git command the administrator should execute to complete this process?
Answer: A
Explanation:
Git workflows are a core component of the Automation and Orchestration domain in CompTIA Linux+ V8.
When working with remote repositories, administrators follow a standard lifecycle to move changes from a local environment to the shared remote server.
The complete process typically involves:
* git pull: Retrieving and merging the latest changes from the remote to ensure the local copy is up to date.
* git add: Staging the modified files.
* git commit: Saving the changes to the local repository history with a descriptive message.
* git push: Transmitting the local commits to the remote repository.
In this scenario, the question asks for the last command required to complete the process of updating the remote repository. While git commit (Option A) saves the changes locally, those changes are not available to other team members or the remote server until they are pushed. Therefore, git push origin update-feature is the final step that synchronizes the local branch with the remote repository.
Option B (checkout -b) is used at the beginning of the process to create a new branch. Option C (pull) is also performed early to avoid conflicts.
The verified answer is git push, as it is the definitive concluding action in the Git synchronization workflow.
NEW QUESTION # 26
Which of the following commands should a Linux administrator use to determine the version of a kernel module?
Answer: C
Explanation:
Kernel module management is an important part of Linux system administration and is covered in the Linux+ V8 objectives. When an administrator needs to determine metadata about a kernel module-such as its version, author, description, license, filename, and dependencies-the correct tool is modinfo.
The command modinfo bluetooth displays detailed information about the specified kernel module, including the module version if it is defined. This makes it the correct and intended command for retrieving version details of kernel modules, whether or not the module is currently loaded.
The other options are incorrect. modprobe bluetooth is used to load or unload kernel modules and does not display version information. lsmod lists loaded modules but does not show version details and does not accept module names as arguments in that manner. depmod is used to generate module dependency information and does not provide module metadata to the administrator.
Linux+ V8 documentation specifically references modinfo as the utility for inspecting kernel module properties. This command is essential for troubleshooting driver issues, verifying compatibility, and auditing kernel components.
Therefore, the correct answer is D. modinfo bluetooth.
NEW QUESTION # 27
A systems technician needs to install a third-party software package. Which of the following commands would allow the technician to download this software package from a remote server?
Answer: D
Explanation:
wget is specifically designed to download files from remote servers using HTTP, HTTPS, or FTP protocols, making it the appropriate command for retrieving software packages.
NEW QUESTION # 28
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: C
Explanation:
The correct answer is A. Z, which represents a zombie process in Linux. A zombie process is a process that has completed execution but still has an entry in the process table because its parent process has not yet read its exit status. These processes are also referred to as "defunct" processes.
In Linux process management, each process goes through various states. When a process terminates, it sends a signal (SIGCHLD) to its parent. The parent is responsible for reading the child's exit status using system calls such as wait() or waitpid(). If the parent fails to do so, the child process remains in the process table as a zombie. Although zombie processes do not consume CPU or memory resources, they do occupy process table entries, which can become problematic if many accumulate.
Option B (S) refers to a sleeping process, which is waiting for an event to complete. This is a normal and common process state.
Option C (D) represents an uninterruptible sleep state, typically associated with waiting on I/O operations.
These processes cannot be easily interrupted and are not related to completed execution.
Option D (T) indicates a stopped or traced process, usually paused by a signal such as SIGSTOP or during debugging.
From a Linux+ troubleshooting perspective, identifying zombie processes is important when diagnosing system issues related to process management. Administrators can use commands like ps aux | grep Z to locate such processes and may need to restart or fix the parent process to properly clean them up.
NEW QUESTION # 29
A systems administrator is configuring new Linux systems and needs to enable passwordless authentication between two of the servers. Which of the following commands should the administrator use?
Answer: D
Explanation:
This command generates an SSH key pair and securely copies the public key to the remote server, enabling passwordless authentication by allowing key-based SSH login between the systems.
NEW QUESTION # 30
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