312-49 · Question #689
What is the name of the first reserved sector in File allocation table?
The correct answer is C. Master Boot Record. The Master Boot Record (MBR) occupies the very first sector (sector 0, LBA 0) of a storage device. It is the first reserved sector encountered on a disk and contains the bootstrap code, the partition table (up to four entries), and the boot signature (0x55AA). The MBR is read by
Question
What is the name of the first reserved sector in File allocation table?
Options
- AVolume Boot Record
- BPartition Boot Sector
- CMaster Boot Record
- DBIOS Parameter Block
How the community answered
(46 responses)- A4% (2)
- B2% (1)
- C91% (42)
- D2% (1)
Explanation
The Master Boot Record (MBR) occupies the very first sector (sector 0, LBA 0) of a storage device. It is the first reserved sector encountered on a disk and contains the bootstrap code, the partition table (up to four entries), and the boot signature (0x55AA). The MBR is read by the BIOS before any OS-specific boot code executes. The Volume Boot Record (VBR) and Partition Boot Sector exist within individual partitions, while the BIOS Parameter Block (BPB) is a data structure within the FAT boot sector - none of these precede the MBR on disk.
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