Question

Some of the users in your company create and delete so many files that they have problems with fragmented disks. Which of the following new features in the ext4 file system help to reduce fragmentation problems?
a. hot swap
b. fragmonitor
c. smaller file sizes
d. extents

Answer 1

Answer:

D) extents

Explanation:

Disks fragmentations in computer science refers to the cases of a file system laying out its contents  in a non-continuous manner thus preventing an in-place alteration of the contents (that is the contents of the file are scattered in fragments across different location on the disk). Disk fragmentation is mostly associated with aging. To mitigate against this, modern implementation of file systems try to preallocate longer chunks of disk space, this is called extents, in this way fragmentation is avoided since a contiguous size of disk space is preallocated to the files and its contents stay together.