An administrator is configuring an application server. The application requires a filesystem with journaling capability. Which of the following is the administrator MOST likely to choose?

ext2 is an older Linux filesystem that lacks journaling support entirely, making it vulnerable to data corruption and requiring a full fsck scan after unclean shutdowns.

DFS (Distributed File System) is a Microsoft namespace service for organizing shared folders across multiple servers, not a local disk filesystem with journaling capability.

ext4 is a journaling filesystem that records changes to a journal before writing them to the main filesystem, protecting against data corruption during unexpected shutdowns or crashes. It is the default filesystem for most modern Linux distributions and supports large file sizes, extents, and fast fsck recovery. Journaling is enabled by default in ext4 via the 'has_journal' feature flag, making it well-suited for application servers requiring data integrity.

FAT32 is a legacy filesystem originally designed for DOS and Windows removable media that has no journaling support and is unsuitable for server application storage.