What type of program is 'systemd' in modern Linux operating systems? MCQ with Answer and Explanation

Question
What type of program is 'systemd' in modern Linux operating systems?
A. A high-performance text editor library.
B. The primary sound card device driver.
C. An open-source web browser package.
D. An initialization system and service manager that bootstraps user space and manages system daemons.
Answer: Option D
Solution (By JKSSB Mock Tests)
systemd is the modern standard init framework and system manager used in Linux to bootstrap user components and control services.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which of the following is a characteristic of a monolithic kernel?
A. It is easier to extend
B. All OS services run in kernel mode with high performance
C. It is more stable than microkernel
D. Only the core services run in kernel mode, others in user mode
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Correct Answer: Option B

Explanation:
Monolithic kernel includes all system services (file system, drivers, memory management) in kernel space, which can improve performance but reduce stability.
This question belongs to: Computer Operating Systems
Question #2
Which of the following conditions is NOT a necessary requirement for a deadlock to occur within an operating system environment?
A. Hold and Wait
B. Mutual Exclusion
C. Preemption
D. Circular Wait
Discuss
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Correct Answer: Option C

Explanation:
According to Coffman's conditions, deadlocks require *No Preemption*. If resources can be preempted, a deadlock situation can be broken or prevented.
This question belongs to: Computer Operating Systems
Question #3
In Linux, the '/etc/fstab' file contains:
A. User account passwords
B. System hostname
C. Network configuration
D. File system mount points and options
Discuss
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Correct Answer: Option D

Explanation:
fstab (file systems table) defines how disk partitions and file systems are to be mounted at boot or manually.
This question belongs to: Computer Operating Systems
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