ECCouncil Official CHFI
https://bookshelf.vitalsource.com/reader/books/9781635676969/
Module 03 Page 214
"Structure of a Master Boot Record
The structure of MBR consists of three parts:
▪ Master Boot Code or Boot Strap – It is an executable code and responsible for loading OS into computer memory. It consists of a data structure of 446 bytes.
▪ Partition Table – It maintains the data of all the hard disk partitions and consists of a data structure 64 bytes
▪ Disk Signature – It is located at the end of the MBR and contains only 2 bytes of data. It is required by BIOS during booting."
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The correct answer is A. Signature word because the Master Boot Record (MBR) typically consists of the following components:
Master boot code
Partition table
Signature word (also known as the boot signature)
The signature word is a specific 2-byte value (0x55AA) at the end of the MBR that indicates the presence of a valid bootable disk. The disk signature (option D) is a unique identifier used by the operating system to distinguish between different disks, but it is not a fundamental component of the MBR structure as defined in the CHFI v10 textbook.
The structure of MBR consists of three parts:
Master Boot Code or Boot Strap – It is an executable code and responsible for loading OS into computer memory. It consists of a data structure of 446 bytes.
Partition Table – It maintains the data of all the hard disk partitions and consists of a data structure 64 bytes
Disk Signature – It is located at the end of the MBR and contains only 2 bytes of data. It is required by BIOS during booting.
D < https://www.sciencedirect.com/topics/computer-science/master-boot-record#:~:text=The%20MBR%20is%20comprised%20of,drive%20attached%20to%20a%20system.
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