File Systems

Question 1

What is a File System?

Answer 1

Is a technology that manages, organises, stores and retrieves data on a storage device such as HDD, SSD.

Question 2

What is a Directory?

Answer 2

Directories are a hierachial method of organizing of saving folders within folders in a file system.

Question 3

What is a File Extension? How can it be identified? and provide a common example.

Answer 3

• File extension a format that identifies the type of file and applications that can run the file.
• Can be identified at the end of the file name; e.g: word file.docx

Question 4

What are 4 features of a File System?

Answer 4

• Permissions
• Compressions
• Encryption
• Journalling

Question 5

What is Permissions within a file system?

Answer 5

• Is the level of access or control that a user has within certain files or directories.

Question 6

What is Compression within a file system? How is it done?

Answer 6

• Is reducing the size of files and/or directories to save storage space on a disk.
• Done by changing the file extension into a zip.

Question 7

What is encryption within a file system? Why is it important?

Bitlocker function

Answer 7

• Encryption prevents access to files without a decryption key. (Bitlocker)
• An important security feature to secure data.

Question 8

What is Journaling in a file system?

Answer 8

• Journaling keeps logs of file system changes which is used for reliability and recovery in the event of interruptions such as power failures or system crashes.
• Will be able to restore a file system to a working order or working state.