all of the things

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+1. Which of the following is the wasted area of a disk cluster lying between the end of a file and the end of the cluster and is created when the file system allocates a full cluster to a file smaller than the cluster size?
+  - [X] Slack Space
+  - [ ] Platter
+  - [ ] Cluster
+  - [ ] Track
+ 
+2. Identify the formula for calculating disk capacity using parameters such as the total number of LBAs and block size.
+  - [ ] Disk Capacity (in bytes) = Total Number of LBAs + Block Size
+  - [ ] Disk Capacity (in bytes) = Total Number of LBAs / Block Size
+  - [X] Disk Capacity (in bytes) = Total Number of LBAs * Block Size
+  - [ ] Disk Capacity (in bytes) = Total Number of LBAs - Block Size
+ 
+3. Which of the following elements is a 128-bit unique number generated by Windows OS to identify a specific device, a document, a database entry, and/or the user?
+  - [ ] Master boot record (MBR)
+  - [ ] Slack space
+  - [X] Globally unique identifier (GUID)
+  - [ ] BIOS parameter block (BPB)
+ 
+4. Identify the part in the MBR structure located at the end of the MBR, holds only 2 bytes of data, and is required by BIOS during booting.
+  - [ ] Boot strap
+  - [ ] Partition table
+  - [ ] Master boot code
+  - [X] Disk signature
+ 
+5. Which of the following components of the Apple File System (APFS) stores information about metadata structures?
+  - [ ] Extents B-tree
+  - [ ] Bitmap structures
+  - [X] Checkpoint superblock descriptor (CSBD)
+  - [ ] Checkpoints
+