A systems administrator is restoring data from a backup.

The correct answer is A. 7za e data because the file has been explicitly identified as a 7-zip archive using a file identification method (commonly the file command). In Linux environments, selecting the appropriate extraction tool depends on correctly recognizing the archive format. The output clearly states “7-zip archive data”, which directly indicates that the archive was created using the 7-Zip compression format.

The 7za utility is a standalone version of the 7-Zip tool commonly available on Linux systems. The e option stands for “extract,” which extracts files from the archive into the current working directory without preserving directory structure. This makes it a valid and straightforward choice for quickly restoring backup data.

Option B is incorrect because the tar command is designed for handling tar archives, not 7-zip files. Even though it includes flags such as --lzip and --format=v7, these are specific to tarball compression and formatting and are unrelated to 7-zip archives.

Option C is incorrect because unzip is used specifically for .zip files, not .7z archives. Additionally, the syntax shown is invalid for handling 7-zip data.

Option D is incorrect because zcat is intended for reading compressed data streams such as gzip files. The -S option does not convert it into a tool capable of handling 7-zip archives.

From a Linux+ troubleshooting perspective, administrators must first identify file types and then apply the correct tool for extraction. Since the format is clearly defined as 7-zip, 7za e data is the appropriate and effective command.