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NEW QUESTION # 68
Which of the following filesystems contains non-persistent or volatile data?
Answer: A
Explanation:
The /proc filesystem is a virtual filesystem that provides process and kernel information. It is non- persistent and volatile, meaning its contents exist only in memory and are regenerated at each system boot.
NEW QUESTION # 69
Which of the following is the term used to describe reviewing processes and file operations on a Linux system?
Answer: B
Explanation:
Auditing refers to the systematic review and tracking of processes and file operations on a Linux system to ensure accountability, security, and compliance.
NEW QUESTION # 70
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: B
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 # 71
A Linux systems administrator needs to extract the contents of a file named /home/dev/web.bkp to the /var
/www/html/ directory. Which of the following commands should the administrator use?
Answer: D
Explanation:
File extraction and backup restoration are fundamental System Management tasks covered in CompTIA Linux+ V8. In this scenario, the administrator must extract the contents of an existing backup file into a target directory.
The correct command is option B, which uses cpio in extract mode. The command changes into the destination directory (/var/www/html/) using pushd, extracts the archive contents with cpio -idv, and then returns to the original directory with popd. This ensures that files are restored into the correct location without modifying paths inside the archive.
The cpio utility is commonly used for backups created with cpio -o and supports reading archive data from standard input. Linux+ V8 documentation includes cpio as a valid and supported archive format for backup and restore operations.
The other options are incorrect. Option A incorrectly assumes the backup is a gzip-compressed tar archive.
Option C creates a new archive instead of extracting one. Option D assumes the file is a ZIP archive, which is not indicated by the .bkp extension.
Linux+ V8 emphasizes using the correct tool based on the archive format and restoring files into the intended directory. Therefore, the correct answer is B.
NEW QUESTION # 72
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: B
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 # 73
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