Term
| File systems provide a mechanism for users to do what? |
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Definition
| Store data in a hierarchy of files and directories. |
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Term
| A file system consists of? |
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Definition
| Structural and user data. |
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Term
| File system is independent from what? |
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Definition
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Term
| File systems use the logical volume addresses but also do what? |
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Definition
| Assign logical file system addresses |
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Term
| Why do file systems assign logical file system addresses? |
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Definition
| They group consecutive sectors to form a data unit |
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Term
| File systems use what two types of addresses? |
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Definition
| Sector and Cluster Addresses |
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Term
| The first cluster in data area of a file system is always what? |
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Definition
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Term
| What happens when you update a file? |
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Definition
| Applications can create a new copy or modify the existing file. |
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Term
| Operating Systems Use Different What Strategies? |
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Definition
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Term
| What are the three allocation strategies? |
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Definition
First Available
Next Available
Best Fit |
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Term
| What is the First Available Strategy? |
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Definition
| It always starts with the first cluster. |
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Term
| What is the Next Available Strategy? |
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Definition
| Starts from the last allocated cluster. |
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Term
| What is the Best Fit Strategy? |
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Definition
| Searches for consecutive data units. |
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Term
| Many file systems have ability to mark a data unit as what? |
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Definition
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Term
| What detects bad sectors in the modern day? |
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Definition
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Term
| Users can manually add a data unit to what list and place data in it? |
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Definition
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Term
| Why do acquisition tools report bad sectors? |
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Definition
| So that report can be compared the damaged sector list to identify sectors that may have been manually added to hide data. |
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Term
| List the categories that all data in a file system belong to at least one of. |
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Definition
File System
Metadata
Filename
Applicaiton |
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Term
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Definition
| Contains general information |
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Term
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Definition
| Contains the data that comprise the actual content of a file |
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Term
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Definition
| Contains data that describes the file |
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Term
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Definition
| Contains the data that assign a name to each file |
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Term
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Definition
| Contains data that provide special features |
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Term
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Definition
| The unused bytes in the last data unit |
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Term
| A file must allocate a full data unit, even if? |
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Definition
| It needs only a small part of it |
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Term
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Definition
| Between the end of the file and the end of the sector in which the file ends |
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Term
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Definition
| Remaining unused sectors in the data unit |
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Term
| What is the most simple file systems found in common OSes and is the primary file system of the Microsoft DOS and Windows 9x operating systems? |
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Definition
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Term
| What are the two important data structures in FAT system? |
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Definition
| Directory entries and File Allocation Table |
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Term
| What are the three features of a Directory Entry? |
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Definition
Data structure that is allocated for every file and directory.
32 bytes per each entry.
Includes directory/file name and location. |
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Term
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Definition
| It is the name of the cluster you are observing. |
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Term
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Definition
| It is the parent directory. |
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Term
| What happens when you delete a directory? |
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Definition
It's name is changed and it's cluster is then listed as unallocated.
The contents of directory still exist within their respective cluster, until they are overwritten. |
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Term
| FAT entries can either be 16 bites (2 bytes) or what? |
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Definition
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Term
| What does a FAT table show? |
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Definition
| The allocation status of a cluster and the next allocated cluster. |
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Term
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Definition
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Term
| By default the Root Directory is fixed at the beginning of the data area before Cluster 2, in what FAT systems? |
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Definition
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Term
| How do you find the Root Directory in a FAT 32 system? |
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Definition
| It's location can be discovered by checking the Reserved Area for information on its whereabouts. |
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Term
| Where does the Data Area always begin? |
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Definition
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Term
| Cluster 2 is right after what, in a FAT 12 or FAT 16 system? |
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Definition
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Term
| Root Directory can overlap with what? |
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Definition
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Term
| What is the structure of FAT? |
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Definition
Reserved Area
FAT area
Root Directory (If FAT 12 or 16)
Cluster 2
Data Area
(Root Directory can be in Data Area if FAT 32) |
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Term
| If you change the first byte to 0xe5, a directory entry will appear as what? |
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Definition
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