Question

Given an MFT entry which info links the entry to the USN Journal?

Answer 1

1. Final answer:
2. An MFT entry in the NTFS file system is linked to the USN Journal through the Update Sequence Number field in the $STANDARD_INFORMATION attribute, which is updated to match the USN when changes occur.
4. Step-by-step explanation:
5. In the context of Windows NTFS file systems, each file and directory is represented by a Master File Table (MFT) entry. The information that links an MFT entry to the Update Sequence Number (USN) Journal is contained within the $STANDARD_INFORMATION attribute of the MFT entry. This attribute includes metadata about files and directories such as timestamps and security settings. Specifically, it contains a field for the Update Sequence Number, which correlates to the USN Journal, allowing for tracking of changes made to the file system. The USN Journal itself is a system-managed log that tracks changes to files and directories on the volume, and each record is tagged with a USN. When a change occurs, a new USN is created, and the corresponding MFT entry's Update Sequence Number field is updated to match this USN, thus establishing the link between the two.