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NEW QUESTION # 176
Joe, a user, has taken a position previously held by Ann. As a systems administrator, you need to archive all the files from Ann ' s home directory and extract them into Joe ' s home directory.
INSTRUCTIONS
Within each tab, click on an object to form the appropriate commands. Command objects may only be used once, but the spacebar _ object may be used multiple times. Not all objects will be used.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
Answer:
Explanation:
See the solution in Explanation below.
Explanation:
Archive Tab - Create the archive from Ann's home directory
Correct Command:
tar -cvf /tmp/ann.tar -C /home/ ann
Extract Tab - Extract the archive into Joe's home directory
Correct Command:
tar -xvf /tmp/ann.tar -C /home/ joe
This performance-based question tests file archiving and restoration using tar, a core System Management skill in the CompTIA Linux+ V8 objectives. The task requires preserving Ann's files and placing them correctly into Joe's home directory.
# Archive Phase Explanation
The goal of the first step is to archive Ann's entire home directory without embedding the full path (/home
/ann) inside the archive. This is accomplished using the -C option.
Command breakdown:
tar # archive utility
-c # create an archive
-v # verbose output (optional but allowed)
-f /tmp/ann.tar # specifies the archive file
-C /home/ # changes directory before archiving
ann # archives the ann directory only
This results in a clean archive containing Ann's files without absolute paths, which is best practice and explicitly covered in Linux+ V8 documentation.
# Extract Phase Explanation
The second step extracts the archived files into Joe's home directory.
Command breakdown:
-x # extract
-v # verbose
-f /tmp/ann.tar # specifies the archive
-C /home/joe # extracts files directly into Joe's home directory
This ensures Joe receives Ann's files correctly under /home/joe/ann or directly under /home/joe depending on post-extraction handling, which matches Linux+ expectations for administrative user transitions.
NEW QUESTION # 177
An administrator needs to remove the directory /home/user1/data and all of its contents. Which of the following commands should the administrator use?
Answer: D
Explanation:
File and directory management is a core system administration skill addressed in Linux+ V8. When an administrator needs to delete a directory that contains files or subdirectories, a recursive deletion is required.
The correct command is rm -r /home/user1/data. The rm command removes files, and the -r (recursive) option allows it to delete directories and all of their contents, including nested files and subdirectories. This is the standard and correct method for removing non-empty directories.
The other options are incorrect. rmdir -p only removes empty directories and will fail if the directory contains files. ln -d is used to create directory hard links, not remove directories. cut -d is a text-processing command unrelated to filesystem operations.
Linux+ V8 documentation stresses caution when using rm -r, as it permanently deletes data without recovery unless backups exist. Therefore, the correct answer is C.
NEW QUESTION # 178
An administrator needs to verify the user ID, home directory, and assigned shell for the user named " accounting. " Which of the following commands should the administrator use to retrieve this information?
Answer: A
Explanation:
User account information is centrally stored in the system's account databases, and Linux+ V8 emphasizes the use of standard tools to query this data safely and consistently.
The getent passwd accounting command retrieves the user's entry from the passwd database, which may be sourced from local files or network services such as LDAP. This entry includes the username, user ID (UID), group ID (GID), home directory, and assigned login shell. Therefore, option A provides all the requested information in a single command.
Option B, id accounting, displays the UID and group memberships but does not show the home directory or assigned shell. Option C is incorrect because /etc/shadow contains password hashes and expiration data, not shell or home directory information. Option D, who accounting, only shows login sessions and does not provide account configuration details.
Linux+ V8 documentation highlights getent passwd as the preferred method for retrieving comprehensive user account information because it works across different authentication backends.
Thus, the correct answer is A.
NEW QUESTION # 179
A Linux administrator needs to securely erase the contents of a hard disk. Which of the following commands is the best for this task?
Answer: B
Explanation:
Secure data destruction is an important security requirement addressed in Linux+ V8 objectives. When data must be permanently erased, standard file deletion commands are insufficient because they do not overwrite the data on disk.
The shred command is specifically designed to securely erase files or block devices by overwriting them multiple times with random data. Using sudo shred /dev/sda1 overwrites the entire partition, making data recovery extremely difficult or impossible. This aligns directly with Linux+ V8 best practices for secure data sanitization.
The other options are incorrect. rm -rf removes directory entries but does not overwrite disk data. parted rm deletes partition entries but leaves the underlying data intact. dd if=/dev/null writes zero bytes and does not overwrite existing data blocks.
Linux+ V8 documentation identifies shred as the most appropriate tool for secure erasure when compliance or confidentiality is required. Therefore, the correct answer is B.
NEW QUESTION # 180
A systems administrator receives reports about connection issues to a secure web server. Given the following firewall and web server outputs:
Firewall output:
Status: active
To Action From
443/tcp DENY Anywhere
443/tcp (v6) DENY Anywhere (v6)
Web server output:
tcp LISTEN 0 4096 *:443 :
Which of the following commands best resolves this issue?
Answer: C
NEW QUESTION # 181
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