Which area of a mechanical hard drive contains the core initial master code used by a system BIOS to locate and launch the primary operating system partition? MCQ with Answer and Explanation

Which area of a mechanical hard drive contains the core initial master code used by a system BIOS to locate and launch the primary operating system partition?
A. Master Boot Record (MBR)
B. Extended Partition Header
C. File Allocation Table (FAT)
D. Virtual Paging Index
Answer: Option A
Solution (By JKSSB Mock Tests)
The MBR (Master Boot Record) is the information located in the very first sector of a partitioned storage drive, containing the partition table and the bootloader code needed to start the OS.

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Practice More Memory and Storage Devices Questions

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Which interface is commonly used to connect SSDs to a motherboard?
A. SCSI
B. SATA
C. Parallel port
D. IDE

Correct Answer: Option B


Explanation:
SATA (Serial ATA) is the most common interface for both HDDs and SSDs. NVMe over PCIe is also used for faster SSDs, but SATA is still widely used.

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Question #2
Which of the following is a type of memory that is used for storing data and programs that are currently in use?
A. Secondary storage
B. Tertiary storage
C. Primary storage
D. Offline storage

Correct Answer: Option C


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Primary storage (RAM) holds data and programs currently being used by the CPU. Secondary storage is for long-term storage.

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Question #3
What is the typical capacity of a double-sided DVD?
A. 9.4 GB
B. 4.7 GB
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D. 8.5 GB

Correct Answer: Option A


Explanation:
Double-sided DVD (DVD-10) holds 9.4 GB (two layers of 4.7 GB each). Dual-layer single-sided (DVD-9) holds 8.5 GB.

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