File slack space is:
A) The space between the end of a volume and the end of a partition
B) The sectors in a cluster that are not occupied by the file in that cluster
C) The space on a disk that is not allocated to files
D) The space left on a disk after a file is deleted

Question

Quizplus · Accepted Answer

Slack space refers to the unused space in the last cluster of a file. Since a cluster is the smallest unit of storage a file system can allocate, and files often do not exactly match the size of an integer number of clusters, there is often some space left over in the last cluster allocated to a file. This leftover space is known as file slack or slack space.

File Slack Space Is