In Windows, the 'Registry' value type 'REG_DWORD' represents: MCQ with Answer and Explanation

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In Windows, the 'Registry' value type 'REG_DWORD' represents:

A. A 64-bit integer

B. A string

C. A 32-bit integer

D. A binary value

Answer: Option C

Solution (By JKSSB Mock Tests)

REG_DWORD is a 32-bit numeric value; REG_QWORD is 64-bit; REG_SZ is string; REG_BINARY is binary.

This question belongs to: Computer Operating Systems

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Question #1

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Which process state corresponds to a thread that is currently blocked while awaiting an input/output operation to complete?

A. Ready

B. Waiting (or Blocked)

C. Running

D. Terminated

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Correct Answer: Option B

Explanation:
A process enters the Waiting or Blocked state when it cannot continue execution until an external event or hardware I/O transfer concludes.

This question belongs to: Computer Operating Systems

Question #2

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Which of the following is a popular bootloader for Linux?

A. LILO

B. NTLDR

C. BOOTMGR

D. GRUB

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Correct Answer: Option D

Explanation:
GRUB (GRand Unified Bootloader) is the most common bootloader for Linux distributions; LILO is older but less used.

This question belongs to: Computer Operating Systems

Question #3

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What is the default file system used by Windows 10 and 11?

A. FAT32

B. exFAT

C. ext4

D. NTFS

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Correct Answer: Option D

Explanation:
Windows uses NTFS (New Technology File System) as its default file system for internal drives, supporting security, compression, and large files.

This question belongs to: Computer Operating Systems

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