Which Linux command is used to show the system's current date and time? MCQ with Answer and Explanation

Question
Which Linux command is used to show the system's current date and time?
A. clock
B. time
C. date
D. timedatectl
Answer: Option C
Solution (By JKSSB Mock Tests)
date displays and sets the system date/time; timedatectl is systemd's tool for date/time management.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
What does an 'Asymmetric Multiprocessing' configuration mean in server deployments?
A. One primary processor coordinates the overall system state while subordinate cores accept assigned tasks.
B. All processor cores alternate execution every 5 minutes.
C. The system runs without an actual kernel module.
D. Processors lack access to physical memory pools completely.
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Correct Answer: Option A

Explanation:
Asymmetric Multiprocessing divides roles unevenly, making one specific master CPU the administrative core while others act as execution engines.
This question belongs to: Computer Operating Systems
Question #2
Which of the following commands in Linux is used to create a completely new, empty directory?
A. mkdir
B. touch
C. rmdir
D. mv
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Correct Answer: Option A

Explanation:
The 'mkdir' (make directory) command is used across Unix-like environments to create fresh directory structures.
This question belongs to: Computer Operating Systems
Question #3
What type of operating system kernel includes all device drivers, file system handlers, and process management routines inside a single massive binary space running in privileged mode?
A. Asymmetric Kernel
B. Monolithic Kernel
C. Microkernel
D. Exokernel
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Correct Answer: Option B

Explanation:
A monolithic kernel compiles all essential OS services directly into a single, comprehensive space, providing high performance at the expense of modular isolation.
This question belongs to: Computer Operating Systems
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