Which Windows shortcut instantly minimizes all open program windows and displays the desktop interface screen? MCQ with Answer and Explanation

Question
Which Windows shortcut instantly minimizes all open program windows and displays the desktop interface screen?
A. Alt + F4
B. Windows Key + L
C. Ctrl + Shift + Esc
D. Windows Key + D
Answer: Option D
Solution (By JKSSB Mock Tests)
Pressing Windows Key + D triggers the shell interface to toggle between minimizing all open windows to show the desktop and restoring them.
This question belongs to: Computer Operating Systems
Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Operating Systems Questions

Question #1
In a symmetric multiprocessing (SMP) system, how are the processing responsibilities shared among available CPUs?
A. Only one processor can be active at any given minute while others stay idle.
B. One primary CPU controls all other slave CPUs and handles all hardware input/output exclusively.
C. All processors share the same physical memory space and run tasks simultaneously under equal peer status.
D. Processors are restricted to executing only application software, never OS tasks.
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
In Symmetric Multiprocessing (SMP), multiple peer processors share a common main memory and execute threads concurrently under equal standing.
This question belongs to: Computer Operating Systems
Question #2
Which system file contains local static mappings of domain names to IP addresses, checked before querying external DNS servers in Windows and Linux?
A. resolv.conf
B. hosts file
C. networks list
D. services config
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
The 'hosts' file is a standard operating system text file that maps hostnames directly to network IP addresses, bypassing external DNS lookups.
This question belongs to: Computer Operating Systems
Question #3
Which of the following commands in Linux can be used to view the list of files and folders inside the current directory?
A. cd
B. ls
C. show
D. dir/w
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
The 'ls' command is the standard utility used to list files, folders, and attributes in Unix-like terminal configurations.
This question belongs to: Computer Operating Systems
Explore All Operating Systems MCQs
Today's Top Topics
Programming Languages 0 Computer Hardware 430 Cyber Security 269 Computer Networking 325 Memory and Storage Devices 438
Explore Subjects
Reasoning 2064 Accountancy and Statistics 3179 Geography GK 6121 Maths 5575 Economy GK 2220
Practice Mix
The Hunter Commission was appointed to investigate which incident?
Find the missing term: 4, 9, 16, 25, ?
If 'pen' is called 'pencil', 'pencil' is called 'eraser', 'eraser' is called 'book', what is used to erase mistakes?
In Windows, which command is used to list all running services?
Which of the following is a characteristic of a good question in a questionnaire?