CompTIA Cloud+ Practice Test

Which of the following file systems was designed to protect against data corruption and is a 128-bit file system?

1. NTFS

2. UFS

3. ZFS

4. FAT

The correct answer is: ZFS

The choice of ZFS as the correct answer is grounded in its fundamental design and features. ZFS, originally developed by Sun Microsystems, is known for its advanced data integrity protection. It employs a mechanism called Copy-On-Write (COW), which ensures that data is never overwritten in place; instead, new data is written to a different location and the pointers are updated. This approach prevents data corruption during sudden power failures or system crashes, as the older versions of data remain intact until the new write is confirmed as good. Additionally, ZFS uses checksums for data blocks, allowing it to verify the integrity of data during read operations. If corruption is detected, ZFS can use redundant copies of the data to repair it automatically, thus providing a robust self-healing capability. The reference to ZFS being a 128-bit file system relates to its ability to handle vast amounts of data and storage capacity, far exceeding traditional file systems. This feature supports the needs of modern applications that require large-scale data management and storage solutions. In contrast, NTFS, UFS, and FAT do not incorporate the same level of data integrity features as ZFS. While NTFS provides some level of data protection through journaling, it does not match the comprehensive