Difference between ext3 and ext4 file-system

Describe difference between ext3 and ext4 file-system?

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ext2 : this was only the default file system up to 7.1 redhat version ->less speed, secure and doesn’t supports journaling

ext3 : this was from the 7.2 redhat version ->more speed, secure n supports journaling compared to ext2

Journaling : It is one of the default feature of ext3 that provides multiples functions such as data availability across improper shut downs, easy transmission among the file systems and speed etc

 

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