What is the name of the default bootloader utility widely used by modern distributions of Linux, such as Ubuntu or Fedora? MCQ with Answer and Explanation

Question
What is the name of the default bootloader utility widely used by modern distributions of Linux, such as Ubuntu or Fedora?
A. LILO
B. BOOTMGR
C. NTLDR
D. GRUB
Answer: Option D
Solution (By JKSSB Mock Tests)
GRUB (Grand Unified Bootloader) is the standard and most widely used bootloader across modern Linux distributions.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
What does the acronym BIOS stand for?
A. Basic Input Output System
B. Basic Internal Operating Software
C. Boot Initialization Operating System
D. Binary Integrated Operating System
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Correct Answer: Option A

Explanation:
BIOS stands for Basic Input Output System, firmware that initializes hardware during booting and provides runtime services.
This question belongs to: Computer Operating Systems
Question #2
What is the main purpose of an operating system's file system?
A. To organize and store files on storage devices
B. To manage processes
C. To provide network services
D. To handle memory allocation
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Correct Answer: Option A

Explanation:
The file system manages how data is stored, retrieved, and organized on disks, including directories and metadata.
This question belongs to: Computer Operating Systems
Question #3
Which command in Linux is used to display the currently logged-in user accounts and terminal details?
A. uname
B. pwd
C. id
D. who
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Correct Answer: Option D

Explanation:
The 'who' command queries system accounting data to display information about users currently logged into the operating system session.
This question belongs to: Computer Operating Systems
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