>> Hi, welcome back to the course.
In the last video, we talked about
the different boot processes.
We talked about Windows, Mac, and Linux.
Again, we just took a very high-level overview
of those particular boot processes.
In this video, we're going to start our discussion
on the different file systems.
We're going to talk about FAT versus NTFS.
As I mentioned, we have FAT and NTFS,
so FAT16, FAT32, and also NTFS.
We're going to talk about each one
of these just a little bit.
Again, this is another 10,000
foot overview of these file systems.
FAT16 or as FAT stands for as
you may or may not already know file allocation table.
This FAT16 was designed for
smaller disk and then also simple folder structures,
so nothing complex at all.
You use to find this
commonly like digital cameras
or even like flash drives, etc.
The files are also stored at the start of
the file Then came along FAT32.
This one is a little more efficient on
space utilization and mostly
because it uses smaller clusters and then there's also
no restrictions on entries into the root folder.
Then we have NTFS.
This is the more common one that
you'll see nowadays for the most part.
New technology file system.
One thing to keep in mind for your examination that
the bitmap file keeps track of used and unused clusters,
so just keep that in mind.
Then also it offers compression, auditing, etc.
It also supports RAID,
which is very important to know as
well is that it supports journaling.
Just keep that in mind as well
as you're studying for the exam,
that NTFS supports journaling.
We have different Linux file systems.
Ext, Ext2, Ext3, and Ext4.
Now, Ext is a very old one.
You may not actually see that out in the real world.
A lot of Linux platforms are built on Ext2.
However, you'll start to see
the more the common things probably out there,
Ext2 and Ext3,
with Ext4 being more adopted as well.
EXT, so again,
as I mentioned, this was the early one.
This is the first file system for Linux.
Way back in 1992 is the estimate there.
The extended file system is
what the Ext stands for and then
the metadata structure is similar to
the UFS or Unix file system.
Ext2, so again, as I mentioned,
this one is seen commonly in many Linux distributions.
The superblock in it
stores information about the size and shape of Ext2.
That's something you definitely want to make
sure you know for the CHFI exam.
Then also the data is stored in
blocks is the same length.
We have Ext3 the key thing to
note here is that it offers journaling.
Again, make sure you just memorize that for the exam.
Then the max single file size is two terabytes.
Then we have Ext4.
Here the max single file size is 16 terabytes.
You see that we go up significantly there.
Then also this one has better scale and reliability,
specifically more so than Ext, Ext2.
Then as I mentioned, this one with
the increase of reliability that's due
to increase performance and then also reducing
the fragmentation over the other Ext options.
Just one quick post-assessment question here.
NTFS is a file system for Linux.
Is that true or false?
We obviously knew that was false.
NTFS is a type of Windows file system.
Again, that answer was false.
In this video, we just went over again,
a very high level of FAT,
NTFS, and also the Linux extended file systems.
In the next video, we're going to talk about HFS,
HFS Plus, both for Mac
as well as we're going to talk about the RAID levels.
Again, the RAID levels are something you'll
definitely want to know for the examination.