File System Internals and Recovery Questions

Comprehensive understanding of file system internals and low level storage behavior and how they affect data recovery and forensic analysis. Topics include how data is organized on storage media, common file system structures and metadata models such as inode like structures and allocation tables, allocation strategies including contiguous, linked, indexed and extent based allocation, fragmentation and its effects, and the meaning and implications of sectors, clusters, slack space and unallocated space. Candidates should be able to explain deleted file recovery and reconstruction techniques including why data can persist until overwritten, how journaling and metadata updates influence recoverability, disk imaging and signature based carving, and practical limitations introduced by encryption and space reclamation and internal garbage collection on solid state drives. Also cover distinctions between device level and file level storage, wear leveling and block remapping on flash based media, differences in mobile device storage versus traditional spinning disk storage, and how file system design decisions impact performance, reliability and recoverability. Prepare to describe practical recovery workflows, forensic acquisition considerations, and why recovery tools inspect specific areas of storage rather than deep operating system internals.