File Systems

File System

Allows you to access, save, and secure files in the operating systems

New Technology File System

commonly found in Windows OS, but 90% of file servers are NTFS

File Allocation Table (FAT32)

An older file system more compatible in older OS than NTFS, lacking modern features

Hierarchical File System (HFS)

File system for Mac OS. Also can be Apple Filing System

Extended File System (Ext3 or Ext4)

Found within Linux OS

Compression

reduces the size of a file or collection of files, enabling the ability to send data easier

Encryption

encodes data to reinforce confidentiality

How does encryption work?

Scrambles data to be unreadable

How to encrypt a single file or folder?

Use Encrypted File System (EFS)

How to encrypt an entire hard drive in window?

Bitblocker

What permissions exist for storage?

Read permissions, write permissions, modify permissions, and full control permissions

Read Permissions

Open a file or folder

Write Permissions

Add information to a file or create a file

Modify Permissions

Read, write, execute permissions, and delete a file or folder

Full control permissions

Read, write, modify, and additional permissions

Journaling

Establishing integrity by keeping track of changes to a file by storing the date and time of the changes

Directories

tree of folders and subfolders in an operating system

Extensions

helps operating system properly identify files

What are word processing file extensions?

.doc, .docx, rich text file (rtf)

What are spreadsheet file extensions?

.xls, .cvs

What are .cvs

comma-separated values, good for importing and exporting large amounts of data

Presentation file extension

.ppt

Executable file extensions

.exe for windows, .app for mac, and .bat

.bat

batch command-lines or automated command lines

Video file extension

.mp4

Audio file extension

.jpg

.iso and .dmg

.iso (windows) and .dmg (Mac) are compression formats that compress files similar to an optical disk

.zip &.rar

normal file compression formats not specific to any operating system