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NEW QUESTION # 109
SIMULATION 3
You are a systems administrator and have created an uncompressed backup of the application directory. Several hours later, you must restore the application from backup.
INSTRUCTIONS
Within each tab, click on an object to form the appropriate command used to create the backup and restore the application.
Command objects may only be used once, but the spacebar object may be used multiple times.
Not all objects will be used. Click the arrow to remove any unwanted objects from your command.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
-cvf creates (-c) a verbose (-v) archive file (-f) named /backups/application.tar.
-C /opt/ application changes to /opt/ so only the relative application directory is saved, avoiding absolute paths.
-xvf extracts (-x) the same archive, and -C /opt/ restores the contents back into the original location.
NEW QUESTION # 110
A systems administrator is deploying a new secure web server but is having issues starting it.
The administrator reviews the following outputs:
Which of the following commands fixes this issue while following security best practices?
Answer: B
Explanation:
The web server is running with SELinux in enforcing mode, and Apache is denied permission to bind to TCP port 1234 because that port is not labeled for HTTP services. Adding port 1234 to the
http_port_t SELinux type allows Apache to bind to the port while keeping SELinux enforcing, which follows security best practices.
NEW QUESTION # 111
A Linux administrator attempts to unmount the local filesystem /datain order to mount a new volume. However, the administrator receives the following error message:
umount: /data: target is busy
Which of the following commands should the administrator run to resolve the issue?
Answer: B
Explanation:
The fuser command identifies and terminates processes that are actively using the /data filesystem, allowing it to be safely unmounted once those processes are stopped.
NEW QUESTION # 112
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:
Comprehensive and Detailed 250 to 350 words of Explanation From Linux+ V8 documents:
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 # 113
Which of the following passwords is the most complex?
Answer: B
Explanation:
Password complexity is a fundamental concept within the Security domain of CompTIA Linux+ V8. Complex passwords significantly reduce the risk of successful brute-force, dictionary, and credential-stuffing attacks.
Linux+ emphasizes evaluating passwords based on length, character variety, unpredictability, and resistance to common word patterns.
Option C, H3s@1dSh3t0|d, is the most complex password among the choices. It demonstrates strong security characteristics by incorporating:
Uppercase letters (H, S)
Lowercase letters (s, d, t)
Numbers (3, 1, 0)
Multiple special characters (@, |)
A longer overall length compared to some other options
Additionally, option C uses character substitution (leet-style) in a way that breaks up recognizable words more effectively than the other choices. This significantly increases entropy and makes the password harder to guess using rule-based or hybrid cracking techniques.
Option A includes uppercase letters and numbers but lacks special characters and is relatively short. Option B includes special characters and mixed case, but it still closely resembles readable words, making it more susceptible to dictionary-based attacks. Option D uses only alphabetic characters and clear word patterns, making it the weakest choice.
Linux+ V8 documentation highlights that the strongest passwords combine length with diverse character classes and minimal predictability. Password C best meets all of these criteria and would score highest against common password-cracking strategies.
Therefore, the correct answer is C. H3s@1dSh3t0|d.
NEW QUESTION # 114
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